Best Optispark For Lt1 All new components-housings are either new castings or turned from billet stock, centerless ground shaft with oil lite bushings. 19212299 is the p/n for the reman spline drive, non-vented opti, superseding p/n 10457702. 86 JEGS - LT1/LT4 Distributor Non-Vented Spline Drive. 7L (VIN P and 5) engines utilize the Opti-Spark distributor ignition system, which consists of a distributor assembly, control circuitry and an external coil. \’92-\’94 Optispark setup more reliable than a 95- 96, even with the. 24x/1x Crank/Cam Signal Conversion Kit for LT1. Have new opti spark distributor, ignition module, coil. Good luck - I thought you had an earlier LT1 (as I had 1960's and 1970's Corvettes). 92-96 LT1/LT4 Spark Plug Wires (Reproduction) $99. Another possibility Opti_spark is a likely culprit, but make sure to have him do, what I didnt do, before I purchased and changed out my opti-spark (95-Z28). A-Team Performance - Complete Optispark Spline Drive Distributor 8 Cylinders - Compatible with 1995-97 GMC Chevrolet Chevy Corvette Camaro LT1 LT4 V8 5. This complete redesign of the Gen I small-block V-8 was the extra-55-hp shot to the arm that the Corvette needed. Once I get over say 4000 RPM or a certain speed my car doesn't feel powerless But My Z has a A4 The redline starts at 5,000 RPM on …. 7L 350 LT11994-1995-1996 CHEVY CAPRICE …. Not sure what the deal is? Any suggestions? Could the timing chain have jumped time?. C4 General Discussion - LT1 oil leak, at my wits end - I bought this 92 Corvette in 07 with about 114k on it. The following are our top 10 picks, which have been subjected to extensive deliberation. Alright guys my optispark went out. Also be sure the Coil bracket grounding strap is hooked up. The two drive mechanisms are spline drive (92-95) and pin drive (95-97). LT1 Stalling Problem? Starts then Dies? Check The Vacuum. ACDelco Professional 19383531 Ignition Distributor, Remanufactured (Renewed). 2023’S Best Optispark For Lt1: The Quickest, Easiest And Most Affordable Way To Keep Your Vehicle Running Smoothly Affiliate Disclosure: helpfuladviceandtips. Match up the index pin on cam to the index on the MSD. If any 1993-1997 LT1 optispark harness is to be used with a 1992 Corvette, this adapter harness will make it plug and play. Though this option is no good if you are using the stock ECM. Don't believe all the trash talk about the Optispark distributor. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Skip to main content. NOS NEW GM 10457293 D8301 Distributor Cap Kit AC Delco OEM Opti Spark LT1. The first thing that happens is as the cam turns, the optical section of the optispark picks up the signals by the rotation of the shutter wheel. This potent engine was a well-known screamer, doing it's best work between 3,500 and 6,000 RPM. We have a great online selection at the lowest prices with Fast & Free shipping on many items!. fbalstud Discussion starter · Aug 21, 2009. I've heard alot about the optispark failing in the LT1's but I have failed to find somewhere on this site what the symptoms are. 2 Nutricost Bilberry Capsules 1200mg Equivalent (90 Vegetarian Capsules) - Gluten Free and Non-GMO ; 2. starlifter Discussion starter · Mar 10, 2022. Performance upgrade, extreme-duty timing chain kit for Gen-ll 1995-and-newer LT1 and LT4 engines. Remanufactured optispark??. You can see the difference in size with the one hole not yet drilled. MSD Pro-Billet LT1 Distributors. They also sell GM factory opti's. When it dies it will not start again. It’s best to wrap this resistor in heat shrink tubing and put it on the underside of the board. My new distributor came with no instructions. If you have a 92 - 94 your best bet is . Optispark may well have worked perfectly during the testing procedures at GM's convenient short-term test facilities, but when it came to long- . Summit of Mount Evans, highest paved road in North America. Received 3,154 Likes on 2,306 Posts. Are you looking for the best optispark for lt1 of 2023? as an enthusiast of this product, i have had the opportunity to test and review multiple options. Hey guys what is the best opti spark you can buy for the LT1? Also mine is a 94 so it would be a non vented model. Thought I would open this topic since we are all interested to some degree. I feel it's the best solution to Opti woes on cars equipped with the first-generation (passively-vented) Opti. For sale is a brand new, never installed/used Gen I Dynaspark optispark unit. Top 10 Best Lt1 Optispark Replacement Reviews & Buying Guide …. 1999 Corvette -- Built motor, APS TT, 761/760 on 14 PSI -- FOR SALE $27,500. Conversely, if you had a type 2 chandler opti in your car, the delco optical sensor would have to be a type 2. Therefore, the following change may need to be made to allow for correct assembly of the engine: For LT1 and L98 engines 1995 and before, the dowel pin in the end of the camshaft must be …. Because of this the intake manifold does not have the provision for a distributor at the rear. The optispark had been replaced already. 7L Replacement for 1104032 KA-GM8381 DST109 New Distributor Replacement For 1994 1995 Optispark LT1 Chevrolet Chevy Camaro Caprice Corvette Impala & Pontiac Firebird 5. And it has the optical section that contains the optical wheel, optical sensor, and it's electronics. They have enabled amazing potential for these engines; even 8,000 rpm capabilities! Best Sellers. Thread Tools To Final word on best opti spark to buy. The water pump had leaked on it, so I figured since I had it off for a cam swap and top end build I might as well rebuild that too. With an aluminum housing, heavy duty bushings, and a high dielectric glass-reinforced cap, this distributor will provide OE fit and greatly improved performance and reliability. 96 LT1 with Optispark only as distributor - run with 411 to eliminate Optispark timing circuit. Have had tested PCM and tested good. Then press the TRIP/ODO button until 9. The aluminum LT1 head is still respectable, but its only about 20% better than TPI heads. LT1 and predecessors is bore center. I did put on the water pump, connect the air pump or the fans. Find out what went into the build! …. If it is assembled correctly (and the timing chain, and other engine mechanical components), there is no need (for timing purposes) to bring to TDC on #1. MSD 8481 LT1 Distributor Cap & Rotor Kit, '92. Fortunately, MSD now offers the Pro Billet LT1 distributor, a comprehensively upgraded OptiSpark unit designed to fit all LT1- and LT4-powered . Before you go out and buy a brand new 1995+ Optispark, be forewarned. The optical sensor has the Mitsubishi emblem on it in the corner. I found a Delphi opti for $180 off fleabay and then added the vented MSD cap and rotor kit for $135. 7L Replacement for 1104032 KA-GM8381 DST109 at Amazon. This was my 2nd water pump to go bad since 94, but was still original Optispark. Assembled with new connectors, terminals, and seals from Packard, and TXL grade wiring. Convert your Non-vented Optispark distributor into a Vented Optispark for under $50 bucks!. $45 Optispark distributor review. It ran good for a week then now it won't start. I have an LT1 optispark that I'm wanting to replace with an older style distributor (sits on the back of the engine on top). The Best Full Exhausts for 1984-1996 C4 Corvettes. The aluminum LT1 heads are fine, but flow about 20% less on the intake side. I know there have been many previous threads regarding the optispark in our cars, but I felt it would be beneficial to make a current thread detailing the situation. Since 2001, Dynaspark has been the leading manufacturer of LTX performance distributors. com ( Part numbers / locations, How to's, Schematics, Diagnostic Trouble Codes ) Reply. Once the moisture resistance test is completed, the unit will need. Find Lingenfelter Performance Engineering Coil Conversion Modules and get Free Shipping on Orders Over $109 at Summit Racing! Lingenfelter Performance Engineering coil conversion modules will help eliminate some of the issues related to the OptiSpark distributor. Brand New Second Generation Vented Gen 2 Optispark Ignition Distributor Complete Oem Fit D95LT. Are you ready for an all-out performance distributor to replace GM's LT1 Optispark? MSD's precise housing, new pickup assembly and distributor cap, and trick timing adjustment mechanism all add up to this reliable Pro-Billet Distributor. Specializing in C4 Chevrolet Corvette Parts. Estimated Ship Date: Monday 10/23/2023. LT1 OptiSpark Water pump shaft seal install. Drop Shipping New Optispark LT1 Distributor for Chevrolet Corvette Camaro Z28 1992 1994-in Ignition from Automobiles & Motorcycles on Aliexpress. In this video I explain and demonstrate how to replace the optical distrubutor in a 1993 Chevrolet Corvette with the LT1 engine. i assumed it was the opti-spark, it was producing a 1371 code and running poorly. Until someone will show me dyno comparisons, for my almost stock LT1, under $200 is the right price for a distributer. The LT1 OptiSpark issue also causes a lot of issues with the spark plug wires. C;600” or “779” stamped near the first lobe. This engine was a definite improvement over the L98, and the …. Lingenfelter Performance Engineering coil conversion modules will help eliminate some of the issues related to the OptiSpark distributor. Best Sellers Rank #3,596,274 in …. The best indicator that the valve guides are worn is a puff of blue smoke from the exhaust system during a cold start. However, RockAuto is currently charging $375 for a reman AC Delco unit, and I …. View All Accel LT1 Opti-Spark Distributors. Yes, only LT1/4/99 engines from 92-97 had the Optispark. 97 Trans Am WS6, LT1 factory 4bolt freak, M6, FLP LTs, Cutouts, Flowmaster catback, Accel 300+wires, Jet Airfoil, K&N air filter, Ferco Bellows, MSD Opti and Coil, Beehive Springs, CAT 1. com and quite a few people are having some troubles with the msd. gm recommends changing them every 60,000mi. Sold my 94 TA GT, T Tops, Flowmaster 50 series muffler and tailpipes, K&N CAI, UMI LCAs, Kenwood CD/DVD/Nav head unit and sound system. Chevrolet Performance Chips From Thorton Chip Tuning are a plug and drive solution to add more power and increase the performance of your Chevrolet engine without making any permanent modifications. OPTISPARK DISTRIBUTOR INSTALLATION COMPONENTS. Spark Plug Wire Boots Heat Shield Protector Sleeve 2500 Degree Spark Plug Heat Cover Wrap 6 Inch for SBC BBC 350 454 8PCS by Shinehome. Item was purchased to put on my car (as a preventative measure) but I sold the car. how to diagnos a bad optispark. Brand New Heavy Duty Dragonfire Race Series Vented 5-Hole Cap Gen 2 / …. To bad it just doesnt let you remove the Opti-Spark all together. Accel GM Opti-Spark II Distributor 1994-97 GM V8 5. Home built 4L60E ~ K&N Cold Air, coolant bypass, air foil, MSD Optispark 00'Dodge Ram 2500 Cummins 24v Diesel. Summit Racing Part Number: SUM-850059. When working correctly the opti-spark is a very accurate system to control ignition timing and keeps the engine bay cleaner by moving the spark plug wires to the bottom of the engine. it has 36,000km, it's in very good condition, sold it b/c he was moving and unfortunately his wife has a bad hip and cant enjoy it like they use too. Estimated Ship Date: Oct 26, 2023 if ordered today. You should not be mixing and matching parts between new and old. If its around 5000 ohms or so its fine. This info comes from HP books "How to Rebuild small lock LT-1/LT-4 engines. I've replaced the spark plugs and the wires and the ignition coil. Try to keep from spraying water directly on the back of optispark distributor as its driven off the camshaft on this motor. 97 Firebird, ran great when purchased, now, won't run konger than 5 min before stalling and. 1 product rating - 93-94 CORVETTE Z28 TRANS AM TA 5. Accurate drive positioning directly from the front of the camshaft. Ignition Distributors at Summit Racing. 94 has a bit diff exhaust manifold AIR fittings than 95/96. This is really the first set of steps you should follow, if you are installing the Torqhead setup. And finally use ohm setting to check wires for excess …. Optispark was not reliable but GM didn't want to pay the man. The DTC 16 alone is enough to turn the LT1 into a paperweight, and 9/10 times, it's the omen of a dead optispark, as a constant DTC 16 will kill fuel and spark, and the engine will not run. I just have a base model '95 Caprice with the 4. You can also buy or make, a Opti converted HEI distributor. 2 Next cocobolo95 Lifetime Premium · #2 · Jul 6, 2015 There is no good budget opti. No need for mechanical timing adjustment. Go buy "How to Rebuild a SBC LT1/LT4 Engines" by Mike Mavrigian. No they are not the same, 95 is an OBD1 engine control system and 96 is an OBD2 system. I cant imagine sales are too high on that piece. 5 Cowl hood, ws6 wheels & Tune by Solomon Best Auto If you off-road on the regular then maybe you need the waterproof Dyna-spark opti-spark. from these other engines is the front-mounted Opti-Spark ignition. Includes:MSD Pro-Billet Distributor 121-83653JEGS Billet Distributor Hold-Down Clamp. 010'', hand ported 374s & intake (David Vizard tech), 1. Best Sellers Rank #804,299 in Automotive (See Top 100 in Automotive) #657 in Automotive Replacement Distributors: MAS Ignition Distributor with Cap & Rotor Compatible with Optispark LT1 Chevy Camaro Caprice Corvette Buick Roadmaster Pontiac Firebird V8 5. 30 - 4L60e - SS4000 - 3400 lb - 28" MT Radial Best ET 10. Should i even mess with the distr at this time before i put it in or just leave it. Summit Racing Part Number: SDM-PCE376100801. Look for the 3 triangles logo inside. If you peer down this hole, you can see the Optispark and connector beneath the water pump. We all know the LT1 problems, optispark, wet opti, hard to change spark plugs, etc. The opti can have multiple diseases unfortunately. 7L Distributor Late Model, 94. MSD's Pro Billet LT1 Distributor May Be The Last Optispark You'll Ever Need. More accurate methods exist (using a scope) but this seems to work at a basic. Summit Racing™ LT1 Optispark Distributors SUM-850059. Thinking of buying an LT1 for a daily, are opti sparks still. Lack of low resolution pulse kills fuel injector operation. How do I check my OptiSpark LT1? How do I check my Optispark LT1? What years did GM use OptiSpark? Utilized in the GEN-II LT1 V8, they were found in the ’92-96 Corvette, ’93-97 Camaro/Firebird, and the ’94-96 GM B-bodies which included. MSD Ignition Pro-Billet LT1 Distributor 1995-97 GM Late Models. Get the best deals for lt1 optispark ac delco at eBay. The 95-97 type 2 opti uses a large pin type drive and is vented. The Optispark lasted 177,000 miles so I can’t complain. Shelbe1991 Discussion starter · Mar 24, 2010. 92-94 GM Chevy Pontiac LT1 Optispark Distributor Tune Up Kit & 8mm Spark Plug. Dumping the Optispark for good. There is an alternitive to the opti. Top Street Performance JM6507 Optispark Distributor. And frankly, when it comes to getting an opti that won't conk out on you and force you to do the job again in under 100k miles, $25 is a trifle. Bring engine to TDC on firing cylinder. I have just acquired my first LT1 car. It started right up and I drove it for a few miles. If everything looks good try starting the car with some starting fluid. to/2rD4i51We install an Optispark from https://petrisenterprises. Using all new components, these distributors feature: High performance ACCEL Electronics. Lt1 optispark delete plate for Msd cam sync plug. Chevy LT1/LT4 '95-'97 350 V8 Opti-Spark II Distributor · Stock replacement computer-controlled Optispark II distributor · Includes hold-down and crab-style cap . Explained in 3 min or less how to remove the optispark distributor from an LT1 F-Body Camaro / Trans am / Firebird / Firehawk / Formula. A nice addition to C4 Corvette once the Holley controller goes in is the Pro Dash. Uses AIP's own Mitsubishi Specification …. This refers to the total number of bolts that attach the main bearing caps to the block. If the Optispark is failing, and must be replaced, this is the ideal time to install a Deltec system. Same installation steps as replacing the original Opti-spark!!. add custom vent harness to 92-93 optisparks to make them reliable. I have three optisparks, 1 is OEM, 2 are MSD. MSD Ignition 83811K2 - LT1 Ignition Kit 1995-96 Corvette. 65 RRs, Torker 2 intake, Nodular …. The bearing on an OEM Optispark rests against the housing with no lateral support. Distributor, Optispark I, Black Cap, Chevy, Small Block, LT, V8, Each. 7L LT1 Engine Problems">The 5 Most Common Chevy 5. Clearing codes can be done after the automatic sequence of codes has occurred using the following instructions. I've got the distributor replacement already, but I am having a LOT of trouble finding a cap and rotor kit. 10 Best Lt1 Optispark Replacements 2023. Sensor was never available separately, however a trip to the salvage yards can. In other words, make sure you visually check to see if you have a Vented or Non Vented before you order! Generally Corvette's. In its run of final Firebirds, Pontiac used two versions of the small-block V-8, both displacing 5. All mis-fire evidence leads me to this conclusion. The distributor was in stock from several large parts chains for $160+tax. LS2 coils (12573190) are very popular. Best Sellers Rank #941,055 in Automotive (See Top 100 in Automotive) #774 in Automotive Replacement Distributors: MAS Ignition Distributor with Cap & Rotor Compatible with Optispark LT1 Chevy Camaro Caprice Corvette Buick Roadmaster Pontiac Firebird V8 5. Iron heads actually flow better than the aluminum. This distributor was installed on : 1992 – 1996 LT1/LT4 Corvettes (Y-Body) 1993 – 1997 LT1/LT4 Camaro’s, Trans Ams (F-Body) 1994 – 1996 Fleetwood (D-Body) 1994 – 1996 Impala, Caprice, Roadmaster (B-Body) The concept of the Optispark was a great idea. Distributor, Optispark II, Optical Trigger, Electronic Advance, Buick, Chevy, Pontiac, 5. 7L 350 at the best online prices at eBay! Free shipping for many products! For Optispark LT1 Chevy Camaro Caprice Corvette Ignition Distributor +Harness. ive been running my optispark with the vent lines capped off I'm trying to piece together an optispark vent harness now so i can run the optispark vented. GM has a PN to up grade cars to newer optispark with vacume line. Looks like they are back in the optispark game and price is very …. Buy MAS Ignition Distributor with Cap & Rotor Compatible with Optispark LT1 Chevy Camaro Caprice Corvette Buick Roadmaster Pontiac Firebird V8 5. New Distributor Replacement For 1992 1993 1994 Optispark LT1 Chevy Camaro Caprice Corvette Impala & Pontiac Firebird 5. (REPLACE WITH NEW P/N) Model and Year: 1992 CHEVROLET CORVETTE W/ LT1 ENGINE Source: Chevrolet Product Emission Campaign Bulletin Number: 92C11 - (06/15/1992) To: All Chevrolet Dealers. But most guys run stock heads and there is really no increase in hp between a stock intake and yours. Another alternative is to use only the optical cam position sensor part of the Opti, install the Bailey Engineering LTCC controller, and 8 LS1 coils. Would an OEM be best in just a standard replacement not looking to When LT1 came out I do not think there was purple thread locker. Now, with the 24x setup, you can repin your stock harness, and retain all factory gauges. Buy replacement distributor: https://amzn. The LT1 ignition system could …. An Optispark distributor and wiring harness from a 1995-1996 Corvette. Then I had no chance for the reworked C4 Corvette to win her 4th straight Best of Class Trophy. 7 V8 350, Replaces GM 10457702, 1103947. $627 for parts Reply Like 01-07-2002, 11:35 PM My LT1 was still running smooth and I had to replace the water pump and asked the mechanic to check the opti and he found a rusted mess that …. LT1 Vs LS1 – What's Best?. GM Opti-Spark I Distributor 1992-94 GM V8 5. The bearing is held in place by a high carbon steel retention plate that is fastened on opposing sides which only provides 40% bearing retention. Or what other things have you done to remedy the common non-vented optispark problems. Anyone who has owned an LT1 powered GM vehicle has heard the dreaded word “opti-spark”. It is easy to want to blame it right away, but making sure it is absolutely the issue, or you could be spending a …. Easily adjust the timing up to +/-6 Degree. I show the tools that I used as well as some of the. ) is the father of this invention. Contact Chris May at Superior Chevrolet (1-800-728-8267) about a replacement OEM Opti. this is my first 4th gen camaro my last camaro was a 1989. For 1996, Chevrolet upgraded the LT1 for manual-transmission cars to a 330 …. comWhat better way to kick off the winter than tearing the Impala apart againTorqhead is in the garage and you aren. OPTISPARK Distributor for CHEVY CAMARO PONTIAC FIREBIRD 1995-1997 LT1 5. Make sure the opti harness is good and tight on both ends, the coil wire and ICM connections are good. 1995 LT1 Easy Optispark installation. My first lt1 corvette lunched a set of timing gears, chain, and bent a few valves at 40k miles. Then, we fill it with a reliable new pick-up assembly, a trick timing adjustment mechanism and top it off with an all new MSD distributor cap! The pick-up is an advanced optical. Everything is installed, wired and ready to run. Buy 1992-96 Corvette Opti-Spark Distributor Components online at Zip. $895 for the ECU that Holley no longer lists as available on their website for LT1 engines (could be problematic for support), $835 for the cam/crank signal kit, $675 for the wiring harness and still need coil packs ($495) and probably a few other accessory parts. That said, I went with the TorqHead primarily to rev my solid-roller …. Bad plug wire to #7, all wires miss routed and zip tied together in bunches, all holders broken. I briefly had a 1997 Camaro Z-28 with the LT1 with the …. Personally, I would leave the opti on the street. I have been in contact with one of the . Inside the case there is 10478000 on the inside. Above 100mph the Lt1 pulls away due to the higher HP. 5 L) With Automatic Transmission - 15. Opti Eliminator kit MSD has come up w/another "tqhead"/LTCC or whatever they're called, ignition system for Gen I SBC. Buy MOSTPLUS Ignition Distributor with Harness Compatible with Optispark LT1 Chevy Camaro Caprice Corvette Replaces 1104032: Distributors - Amazon. Find many great new & used options and get the best deals for OPTISPARK DISTRIBUTOR LT1 LT4 95-97 GEN 2 CAMARO CORVETTE 5. Can't do that with the LT1/4 PCM. Jump to Latest Follow 1188 Views 8 Replies 3 Participants Last post by auggie56, Nov 4, 2013. CODE 16 ON 1994 LT1, CHANGED OPTISPARK, STILL SAME PROBLEM,. Put cold water on a hot Optispark, it's going to suck the water in! This is the BIGGEST problem with the design. 7L 350 LT11994-1995-1996 CHEVY CAPRICE 5. 2011 GMC Sierra SLT Crew Cab, 6. The problem is, the seal goes bad between the cap and body-either by being installed wrong or just old age- and this allows more wet IN than the vacuum can evaporate OUT. A-Team Performance Optispark Distributor Cap. 7L 350, 265 ; Built according to the highest standards of quality and precise specifications this high quality ignition distributor is a direct replacement part. AIR system was EPA allowed to be disabled on 95/96, note GM TSB on it and factory reflash to disable it. General Motors has determined that certain 1992 Chevrolet Corvettes with LT1 engines (VIN code "P") …. A natural drag racer with their fairly light weight, rear wheel drive, strong transmissions, and simple suspension, the mid-'90s “F-body" cars also featured a stout 350-cubic-inch LT1 V8. There have been some new caps, rotors, and Opti's to. 1995-1997 Trans Am, Formula, Distributor Assembly, OptiSpark. About to have the engine dyno tuned. tilley88 · #2 · Jan 16, 2015 Just went thru the same ordeal with my '95. If not, remove the seals from inside the end of the cam shaft. C4 Tech/Performance - LT1 opti to LS1 coil conversion - Something tells me this is already a thread I just can’t find it so if anyone’s got the link just post it in this thread please but I’m interested in ditching my opti for LS coil conversion I just can’t find any kits online. Uses AIP's own Mitsubishi Specification Optical Encoder for the most accurate/dependable LT1 Distributor yet. Replaced optispark now wont start. Built according to the highest standards of quality and precise specifications this high quality ignition distributor is a direct replacement part. Buy a $12 \’96 GM Vette distributor. OEM optispark does have a Mitsubishi optical sensor that is supposed to be accurate to 8000 rpms. Then you can stuff a traditional ignition in the hole because the optispark won't work without the computer. 03 Z06, LTs, A&A P1SC running 6psi, 550/471. Discussion starter · #5 · Mar 13, 2007. Is your Optispark unit vented? Earlier units were not vented and failed early. A small test rig I made for doing basic testing on a couple Optisparks I made. Subscribe 02-24-2011, 05:41 PM #18 Charleston2012. This was the second generation of the GM small block V8 motor and the first major design change since 1955. In the case of the optispark, the OEM one is still the best, even though other reputable aftermarket companies such as MSD and Accel are in the business of making them. I just got the cap and rotor kit, it went on pretty easy if you're good with tools. You should be alright, I recently solved my mysterious check engine light issue on my 96 LT1, kept on coming up with the crank position sensor circuit range/ performance code. MSD optis are kinda hit and miss. The Lt1 Optispark Wiring Diagram is a schematic diagram that details the wiring of the Optispark’s components including its leads, the ECU connector, and the various sensors. A-Team Performance Complete OptiSpark Spline Drive Distributor with Wiring Harness Compatible With Chevy GMC Chevrolet 1992-1994 LT1 V8 5. It's ok it's a LT1 either way 327 will be cast in the block upside down if it is the 5. Top Rated SellerTop Rated Seller. Complementary Work: This would be a good time to install new spark plug wires. Because of this, “opti-spark sucks” is the common chant. By 1996, the engine was rated for 285 horsepower at 5000 rpm and 325 lb-ft of torque at 2400 rpm. Find helpful customer reviews and review ratings for MSD 83811 Pro-Billet LT1 Distributor at Amazon. Distributor Cap Style: Female/Socket. This 1996 Chevrolet Corvette coupe has MSD's Pro Billet LT1 distributor for 1992-1996 Corvettes installed to replace the factory Optispark ignition unit - Vette Magazine. Testing is a self destructive process. I had a 1994 LT1 being controlled by a OBD1. Get the best deals for optispark at eBay. 92-94 LT1 MSD Opti-Spark Cap & Rotor Price: $229. gets sucked out by the intake manifold)? My hose for the intake manifold has a noticeably larger inside diameter, leading me to think the thick plastic one is the outlet but when trying to clamp it on to. The LT1 was fitted in Chevy’s Corvette, Camaro and Caprice/Impala SS. A-Team Performance - Complete OptiSpark Spline Drive Distributor with Wiring Harness - Compatible with Chevy GMC Chevrolet 1992-1994 LT1 V8 5. You'll need to make a set of plug wires. Hi all I hope some one could help me with my engine swap. Thread Tools At the end of the optispark harness (disconnected from the opti) with the key ON, you should see: A = ~5vdc B = ~5vdc C = 12vdc or system voltage D = ~0 - 0. ACDelco Professional 19383531 Ignition Distributor, Remanufactured (Renewed) 3. Then the Camaro/Firebird in 1993. An opti that has been installed properly will last twice that long. C4 Tech/Performance - Optispark Replacement Seal - I just finished an Optispark replacement and a complete rebuild of ther cooling system, new radiator, heater core, WP, and hoses on my 1995 LT-1. 1087 Views 9 Replies 3 Participants Last post by starlifter , Jun 9, 2022. 7L Auto ECM 1227747 $42! 1998 Chevy Silverado 5. It's designed for the LT1 computer. New Distributor Replacement For 1995 1996 1997 Optispark LT1 …. Awesome product Night and day difference once this was installed looks great too to bad gm engineering covers it on the lt1 designs. Opens in a new window or tab. It outflowed the legendary Bow Tie heads and was the basis for the Vortec head, one of the best bargain performance cylinder heads on the. GM upgraded the OptiSpark in 1995 and it did wonders for long term durability. Reliability dynaspark, cost effectiveness for future rebuilds for 90 duckies a plus :rockon: all in all dynaspark is a better product and cheaper over the course of the vehicle. 37141 Views 22 Replies 15 Participants Last post by erhardtm , Dec 11, 2009. It was a difficult job to list only ten products for Best Optispark For Lt1 where thousands of them available online. Petris wants $25 less for a pin-drive, and wants $25 more for a spline-drive. LT1 opti to LS1 coil conversion. Ive been through optispark hell in the last month as I converted my 93's timing cover from the early model (driveshaft drive) to the late model (cam dowel drive) & vented style. If you buy an Msd 93-94 spline drive opti, it will come with a vent harness for the opti. 1995 corvette c4 lt1 optispark. That feature allows a more precise timing mechanism, supporting spark and injector pulse processes. I have found OEM and other replacement Optispark dist for 65. com: optispark distributor lt1 95. The best bet for replacement is to install an aftermarket distributor (MSD, BWD, Petronix, Dynaspark are common options). Chevy Ca Impala 94 96 Lt1 5 7l Optispark Distributor Blue Spark Plug Wire Swapmeetparts. 7L (350 cubic inches) in the LT1, it actually has a bigger engine capacity than the 5. This will require some fabrication on mounting the stock LS1 coil brackets to the valve covers as well as. I already checked the fuel pressure and it's all good. The final touch is the installation of a vacuum ventilation hose assembly with the correct check and. My And, as best as I can tell, yours is the first version, sans venting!. Newbie(Opti-spark nightmare or something else) 4240 Views 37 Replies 8 Participants Last post by chevykid54, Feb 18, 2008 Jump to Latest C. 3 L) Close bleeder screws when bubbles disappear and only coolant is visible. Yes, like the others mentioned "MAKE SURE" you replace it when you have your mods donedon't just go with a cap and rotor kit on your OLD optithe MSD optispark works real good and (IMO) is the most high quality optispark "type" unit out there, but the price (around $500) is kinda higher than most guys want to spendsame …. Subscribe 07-14-2011, 12:50 PM #18 mfi. If you buy any other, don't say you haven't been warned. The 1992 Corvette Petris Opti-Spark Distributor is hand assembled with parts that are equal to or greater than the original GM Opti-Spark. Can I get a new spline drive somewhere? 2. 2 Inline Spark Plug Tester, Straight Boot Engine Ignition Tester Light Easy to Use, Small Armature Diagnostic Detector Tool for Automotive, Car, Lawnmower, Motorcycles, …. ThanksYup, another youtube video of the LT1 Seal Replacement process! I. com for best prices and get the Delphi opti AND the AC Delco water pump. I see MSD has developed an OPTI SPARK REPLACEMENT $475. LT1 Coil per Cylinder Converter – Bailey Engineering">LTCC LT1 Coil per Cylinder Converter – Bailey Engineering. Top Picks Related Reviews Newsletter 1 New Distributor Replacement For 1994 1995 Optispark LT1 Chevrolet Chevy Camaro Caprice Corvette Impala & Pontiac Firebird 5. HELP 1963-1996 Corvette LS Engine CONVERSION PARTS. By using the Opti-Spark Hi Resolution and Low Resolution signals to feed the LTCC, the interface can decode which cylinder is being fired by the PCM and direct the timing signal (EST) to the appropriate coil. Don't know about the pin drive unit. 6L80E T43 6L90E Transmission Connector Pigtail. I did not put any check valve or …. Free Shipping on Orders Over $109 at Summit Racing. I got no spark and no injector pulse. My question being if this is a correct and reliable method on an LT1 and if not. The optispark in that year is the vented unit. early distributor configuration. AS bad as these are, the parts store optis are a lot worse. That's cool you guys made an air gap intake for the lt1. This video is part 1 of the repair Titled: How to replace the Water Pump and Opti-Spark Distributor on a LT-1 Engine found in 4th Generation Firebird and Che. Because We have worked hard studying on "Optispark For Lt1" and analyzing 52755 reviews for Optispark For Lt1 Reviews and score them. 95 Chevy Caprice - Golen LT4 383, LE3 heads/cam - no more. Jump to Latest Follow 21 - 34 of 34 Posts. Summit Racing Optispark who makes them? are they any good?. 3L L99 engines all had cams with the longer dowel pin for the distributor drive, and used the milder “600. Hey all, I know there have been many previous threads regarding the optispark in our cars, but I felt it would be beneficial to make a current thread detailing the situation. After messing with it and several trips up and down the road, I found it ran best with it turned two times out. 3 ACDelco R45TS Professional Conventional Spark Plug (8 Pack) ; 2. Find helpful customer reviews and review ratings for MOSTPLUS Ignition Distributor with Harness Compatible with Optispark LT1 Chevy Camaro Caprice Corvette Replaces 1104032 at Amazon. Advanced Search Cancel Login / Join No coolant hit the optispark. its not going to be $50 though. MAS Ignition Distributor with Cap & Rotor Compatible with Optispark LT1 Chevy Camaro Caprice Corvette replace Replacement for 1104032 KA-GM8381 127 $54. Lt1 Optispark Replacements ; 1. In order to gain access to it, you will first have to remove the fan, belts and water pump. 3L produced just 252 hp, but torque jumped to 293 lb. The stock bottom end and heads were retained, however a COMP Cams 210/220 duration,. Best replacement optispark. The term Opti Spark refers to the ignition distributor, which possesses an optical trigger feature. Qlincy Discussion starter · May 16, 2008. Fresh air vented and sealed to keep the elements out. I have a 1995 LT1 Chevrolet Corvette. 8:1 - CNC LT4 heads/intake - Comp Cams solid roller - MoTeC M48 Pro engine management - 8 LS1 coils - 58mm TB - 74#/HR injectors - 300-shot dry nitrous - TH400 - Gear Vendors 0. Looks like I will be replacing the water pump and seals too. 94 z28- msd opti-spark,msd blaster coil, msd 8. New release of Acdelco Optispark. you can either just leave the stock optispark unit on the front of the engine, or make a blockoff plate for it. Information on the Chevrolet LT1 350 Gen2 engine Haltech ECU Options All models can use the Elite 950 but will lose the Idle Control All models can use the Elite 2000 or 2500 with full control. Many problem MSD optis during this period. **Stock Head Cam/Cam Swap Guide** Intro: It seems like several people every week want to know what cam is best for their stock headed/stock shortblock LT1/LT4 or what components they need for a cam swap; so this is a guide to steer all of you in the right direction and hopefully allow you to make the optimal choices for your setup. To produce the 1x camshaft signal, it is imperative that the signal come directly from the cam. Summit wants $250, Accel $290, CMS"Chandler Motor Sports" $115, KMJ performance "eBay vendor" $79, Skipwhite "eBay vendor" $69. Its components include an optical section, a rotor, and a high-voltage cap. Looking to buy a better , but since People have me terrified of the optispark I'm solely looking for 95-96 because of the vented optispark . Optispark is the weak link, get the Del-Tec and never look back. Chickenfried94 · #2 · Oct 24, 2010 (Edited) It is probably the opti I had one go out and to test it first to check the coil unplug from the opti and I put a spark plug in it and put close to something metal if you get a spark then it is good then plug opti back up and pull a plug out and do the same thing no spark opti is bad but it might. PLEASE READ OUR BLOG POST PRIOR TO PURCHASE. 6 rockers and an LT4 intake would help the LT1 breathe a. Msd Optispark Alternative ideas?. The common symptoms I have seen and experienced is a high RPM miss, and/or low RPM stumple, and/or seemingly little timing advance (resulting in poor gas mileage), and finally misfire throughout entire RPM range, and also sometimes the car won't turn over. Franklin0819 Discussion starter · Nov 16, 2013. For many years, GM’s Gen II LT1 has offered the perfect solution for tuners on a budget looking for a cost-effective V8. Assault Racing Products 1235012 Vented Optispark Distributor LT1 LT4 for Chevy Camaro Corvette Pontiac Firebird. The official optispark preservation thread. It appears that my vented Opti was un-vented at some point to "fix" another vacuum leak. I'm wondering weather I should go MSD, Delphi, AC Delco, or any other opti that's out there. See our picks for the best 3 Lt1 Optispark Replacements in UK. Includes roller timing chain P/N 14088783, crankshaft sprocket P/N 14088784, camshaft sprocket P/N 10214880 and water pump gear P/N 12551728. Had to replace with a vented one. Though the LT1 has a different block and heads than the earlier small block Chevy V8, the engine mounts and bellhousing configuration were kept the same, allowing the newer Gen II engine to be swapped into older vehicles. Come join the discussion about performance, specs, builds, conversions, swaps, modifications, troubleshooting, maintenance, and more!. My car runs like crap when I try to take off it feels powerless. The Dynaspark is fitted with a press fit location for our sealed ball bearing which is rated to 13,000 RPM. With it you can see the low & high resolution pulses as they happen. If you don't see the proper ac voltage the problem could be the optispark, the harness to the optispark, the PCM or any of the wiring in between. Find Parts and Accessories Optispark lt1 KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing!. Support us by buying anything from Amazon through this link: https://amzn. Optispark??? Too many Options!!!. The ignition was called as the Optispark …. The stock Opti works fine on a Megasquirt 3 in fully sequential mode using the high and low res signals, but both of the MSD versions do not work when the high res system is installed (works in batch fire …. The LT1 ignition system could actually be referred to as a hybrid that is a cross between a time-based conventional ignition and a corresponding duration-configured. Since my optispark is original equipment and getting tired I am going to replace it while I have the pump off. I have been fighting to get my car finished. 2001 Pontiac Firebird Trans Am WS6 Mecum. 1992-1994 Corvette Optispark distributor seal replaces the brittle or missing original. LT1 front timing cover for HEI conversion. 1993 Trans Am -- 383, LT1Boost Hot Parts, PT76GTS, FAST XFI, ectrunning and slowly being tuned by me. The 96 LT1 got a crank sensor (1x or 4x, very simple, not needed on a 94/95 engine) and diff knock sensors, easily swapped back to 94/95. Danny hope you're still out there, I need some help. Free shipping on many items Ignition Distributor Fit For Optispark LT1 Chevy Camaro Caprice Corvette 1104032. just reading all of these horror stories about the stock optispark made me want to change it as preventive maintenance. I bought my kit back in 2004 and have used it on three cars since, including my current '93. I had a '96 Roadmaster and it hauled ass for a 4200 lb boat. Then I install the rest of everything. Cardone at the parts store are the worst, followed by anything under or around $100 on ebay. So when you do it, you want to make sure to install the best parts possible and the MSD Cap and Rotor deliver. Ram Air 383 · #6 · Aug 30, 2009. Keep in mind You are only checking to see that it can start. C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine surged at idle sometimes almost quiting. I noticed that one of the rotor screws was loose inside the cap. Depending on the year LT1, you could have a non-vented opti (till 94) or a vented one (95 and later). Any higher than 7000 ohms means you should replace it. Stock replacement computer-controlled Optispark II …. DIY LT1 Opti Removal Explained in 3 min. For some doing the work is easier than paying for a whole optispark (like me) Heath Lewis 4 bolt main, M6, Hooker LT's, Crane 1. This new Opti-Spark distributor was supposed to be the greatest thing since GM did away with ignition points. kanderson Discussion starter · Nov 19, 2008 (Edited) I hope someone can offer insight and suggestions. How to Replace the Optispark Distributor on your LT1 5. ) and everything checks out good. OPTISPARK DISTRIBUTORS and KITS. I want to say that 95% of the time, the car has a split-second. The iron LT1 head flow such nice quality and quantity that GM copied it directly for the Vortec head. Motor im using has 98,000 miles on it, sounds and runs good. i'm pretty sure its starts out at the optispark as 1/4 line, then reduces to 1/8" line. Get the best deals on Distributors for 1993 Chevrolet Corvette when you shop the largest online selection at eBay. I have a 94 LT1 that has the unvented opti which I'm going to convert to a vented opti by adding the vacumn sorce the same as the later years have. After installation of the TPI intake, the 4. i have a 1996 chevy caprice LT1 that wont start due to hurricane sandy the water line of the car was half of the bottom pully which i. The B-body one pushes the pulley …. Check for dc voltage with a digital meter at harness terminal "A" to ground and and also "D" to ground. Before you buy a 1996–2002 Pontiac Trans Am WS6, here’s. 7L Vortec 0411 Swap to RoadRunner! -= =-. OPTISPARK TEST THE EASY WAY " know everything". Distributors & Parts for Corvette for sale. 25 Records Per Page Best Keyword Match Sort. The round body truck coils with the metal fins (19005218) DO NOT WORK Use a Cut-yourself HEI kit and an LT1 terminal and boot kit. Our AIP LT1 Optical Encoder is temp rated at 330° and produces an accurate timing reference signal up to 8000 RPM, exceeding the OEM Mitsubishi encoder used in the AC Delco factory LT1 distributors. 00 on EBAY typical high quality MSD stuff, cut out of billet aluminum, ventilated case & you can adjust timing 5 +/-. The 1x disc is precisely indexed and secured inside. take out the gen5 lt1 engine and install c4 based optispark lt1 engine (into the c7). Asked by tc_andrews Mar 08, 2016 at 07:54 PM about the 1997 Pontiac Firebird Trans Am. The housing has a reliable and stable pickup assembly consisting of an advanced optical encoder. I bought it for LT-1 specific info because I have a '95 Vette that I want to rebuild. All came down to an aftermarket opti-spark I had put on from a local auto parts store. This kit comes with all the coils, 8mm spark plug wires, ignition control modules, valve cover mounting brackets, and the Plug 'n' Play Wiring …. Our parts provide the best market advantage, giving you an affordable, high-quality option for replacement parts, and a great alternative to cheaply made, unbranded aftermarket components. In this video, I show you how to remove the LT1 and LT4 Distributor also known as the Opti or Optispark. Optispark is the distributor that was installed on all late model LT1’s and LT4’s. '95 B4U LT1/4L60E in Purple Pearl. 2023’S Best Optispark For Lt1: The Quickest, Easiest And Most Affordable Way To Keep Your Vehicle Running Smoothly. It's a conversion to ls1 type coil pack ignition. Im new to site, doing a lt1 motor swap to my s10. The GM Optispark is an optically-triggered ignition distributor used on the LT1, LT4 and L99 engines. The antifreeze, air cleaner system, water hoses and drive belt are already removed. IF the vent system is screwed up and building vacuum in the optispark I then could see oil being pulled in through the bearing BUT …. Ford EDIS8 Conversion using GM coil packs. The ease and compatibility of install of these components is the same for all engine years. 1104032 DISTRIBUTOR OPTISPARK OPTI-SPARK 94 - 97 Corvette Camaro LT1 SQUARE 1. Once there, press and hold the ENG/MET button until “—“ is displayed. Click "Show More" below to read everything I have to say about this particular video. Unit purchased assembled from DIYAutoTune complete with wires. This is most likely the best aftermarket LT1/LT4 distributor you will ever come across. Or fastest delivery Thu, Jan 26. The 94-95 LT1 do not use crank trigger but can bolt on 96-97 timing cover with crank trigger sensor, for that matter I think it bolts to all SB chevy engines. Our AIP LT1 Optical Encoder is temp rated at 330° and produces an accurate timing reference signal up to 8000 RPM, exceeding the OEM Mitsubishi encoder used in the AC Delco factory LT1 distributors Comes complete with Wiring Harness, Complete Distributor. i know the line that runs from the intake elbow to the optispark is just a single open vacuum line. 7L Replacement for 1104032 KA-GM8381 DST109 New Distributor Replacement For 1995 1996 1997 Optispark LT1 Chevrolet Chevy Camaro Caprice Corvette Impala & Pontiac Firebird 5. Last sunday I wanted to drive the vette, it started ok but after about 3 seconds, just when I placed the car into reverse the vette …. How to replace optispark distributor 1993 C4 Corvette LT1. Lt1 Optispark Replacements. In the meantime, the Pro Billet LT1 distributor's reasonable price tag ($515-about $200 more than a factory replacement), top-quality features, and ironclad reliability make it a welcome addition. LT1; Optispark recommendation? Some aftermarker Opti-Spark distributors also have the problem of not having the correct tollerances. for Small-Block Chevy and LT1 LT4 Engines w/ Center Bolt Valve Covers Use our EFI 24x and EFI 58x product lines are the best to replace the troublesome LT1 optispark distributor. What gasket maker or sealant is best for adding to the WP gaskets to prevent any leaks in this thread in this sub-forum in the entire site. I even swapped the coil and ICM, as they're easiest. Read honest and unbiased product reviews from our users. Its sealed much better then the GM of other aftermarket opti's and if you know anthing about the optispark water is its enemy. They make three different hub lengths , F-body , B-Body and the Vette. I would just offer the dude $200 -300 less for it because the motor was not as described. The Pro Dash uses GPS for vehicle speed. JEGS 40461 - Distributor Cap and Rotor Kit for 1994-1997 GM LT1 with Opti-Spark Ignition System $113. LT1 Optispark Vented Wiring Harness Connector - Fits Camaro Firebird Distributor LT1 5. Ventilated Optispark distributor for all LT1 and LT4 engine applications. The LT1 was a radical twist on the traditional small-block Chevy; reverse-flow cooling, an "anti-tuned" short-runner intake manifold, Optispark ignition, and sophisticated spark-retard electronics. 1992-1994 Corvette Optispark distributor seal replaces the brittle or missing …. Nothing else mechanical is compatible. 1485 GM IGNITION DISTRIBUTOR OPTISPARK LT1 ROADMASTER CHEVY …. Throughout this article we examine these 5 common LT1 engine problems along with symptoms and replacement. The vacuum line that vents the opti is known to deteriorate. 7L Replacement for 1104032 KA-GM8381 DST109: Best Sellers Rank #300,783 in Automotive (See Top 100 in Automotive) #237 in Automotive Replacement Distributors:. This distributor replaces the Optispark II vented, pin drive style OEM distributor only. Michigan Motorsports Optispark Vented Wiring Harness Connector Fitment for LT1 Camaro Firebird $13. Reviewed in the United States 🇺🇸 on April 24, 2018. I have a LT1 powered (93 Corvette according to the ECU) 34 Ford, and it has no spark at the plugs. Just finished replacing my ’94 Z28 LT1 water pump and Optispark. The mechanical signal kit that generates the 24x crank and 1x camshaft signals can be installed on any year LTx engine that came with an Optispark (spline or pin drive). The new MSD optispark has a +/- 5 degree adjustment built in to the optical trigger. The LT1 was retired for good after the 1997 model year in favour of the LSx family of engines. TSP’s OEM replacement EFI distributors are direct replacements for stock units, but with improvements throughout. Customer reviews and photos may be available to help you make the right purchase decision! Best Sellers Rank #3,161,243 in Automotive (See Top 100 in Automotive) #2,654 in Automotive Replacement Distributors: …. Hotrod34 said: The nose of the 93 cam is different to the 95 cam which allows the back part of the 95 vented opti into the nose. use an intake with the distributor hole (say a vic jr. A-Team Performance Optispark Distributor Cap, Rotor, Remote Ignition Coil Tune Up Kit, & 8. 7 V8 350, Replaces GM 10457702, 1103947 MAS Ignition Distributor with Cap & Rotor Compatible with Optispark LT1 Chevy Camaro Caprice Corvette Buick Roadmaster Pontiac Firebird V8 5. Jump to Latest Follow 1129 Views 3 Replies 3 Participants Last post by CKJ, Sep 26, 2008. The Top Street Performance JM6507 Optispark Distributor is another great Optispark replacement. Note that the low-res noise appears to occur repeatedly at the same position in the pulse train: near the slot for Cyl #2 TDC. You can gain LS engine controls using AC De. i replaced the optispark and the car still ran poorly, now i have NO spark and the …. That's the best explanation I've seen with out reading a. 2029 Views 11 Replies 3 Participants Last post by llorracs93s10, Justin 313rwhp/337rwtq 93 S10 - 355ci lt1 - PAINTED - eagle 225's 18x8s/18x10s with 285s out back - erson 218/226. Really stupid questionopti cover bolt size/pitch. There is only one true replacement for the opti-spark, and that's the Opti-Spark Delete-Super Direct Ignition System (OSE/SDI) from Electromotive. MAS Ignition Distributor with Cap & Rotor Compatible with Optispark LT1. They can be used on stock or performance enhanced vehicles. how to replace Optispark Distributor, Nightmare LT1 LT4. Brand new Dynaspark optispark. 7 NEW IGNITION DISTRIBUTOR OPTISPARK OPTI-SPARK …. com is the best online shopping platform where you can buy For Optispark LT1 Chevy Camaro Caprice Corvette Ignition Distributor +Harness from . Exactly the same except note the different profile on bottom. this eliminates the gas build up issue so only problems is water keep it dry. This 24x LT1 conversion kit is for use with any 1992-1997 LT1 engine fitted with a single or double row timing set. The Chevy Corvette suffered from a very common problem regarding the steering lock engaging while driving, which would make the driver lose control and increase the risk of car crashes. 1995 Camaro Z28 Lt1 350 Auto Trans Cranks Fine No Run Fuel Pressure 45 Psi Good Injector Pulse Compression. You get coil packs, no opti, and a PCM with almost infinite more capabilities than the stock LT1 PCM. LT1 engines use the optispark distributor. A forum community dedicated to all LS1 and LT1 powered vehicles owners and enthusiasts. Our Optispark distributor cap has a ventilation port cast into it with high quality brass terminals and high voltage distribution straps. With one of the above and an Optispark with a compromised cover seal, plug seals or a vent system not working, oil gets in. Be aware of cheap optispark knock-offs ($59 optispark on ebay), MSD units (some here have good luck, some bad), dynaspark (im told the newer units got …. Stock replacement computer-controlled Optispark II distributor Includes hold-down and crab-style. ACCEL'S Performance Replacement GM Opti-Spark II Distributor is a direct plug-in factory replacement with an aluminum housing and a high-dielectric-strength, glass-reinforced cap. Free shipping on many items Ignition Distributor 1104032 For Optispark LT1 Chevrolet Corvette Camaro Caprice.