BLKMGK Posted March 10, 2002 Share Posted March 10, 2002 Our 95 LT1 went about 100K before the water pump went. The OptiSpark went about 10K afterwards. Possibly not typical but they did last well for us. Holley StealthRAM looks AWESOME! If my VicJR deal doesn't work out I'll be looking for one. What do they run? How much is the rail kit for it? That "other" RAM setup is a joke pricewise. $1K?! not including rails if I recall too Quote Link to comment Share on other sites More sharing options...
Cruez Posted March 10, 2002 Author Share Posted March 10, 2002 That Holley setup looks nice If I were to build a setup, I would like to have a FI 327, and a T56 behind it. I could probably save some money (possibly) building my own 327 and adding the holley setup...then get the T56..All of this of course depends on the $$$. I want a revving engine, either the chebby 302 or 327 looks the best for that type setup. I found a site that spec's out GM's exact formula for the original 302. I may go by it...except for the extremely high CR..I want it on pump gas. Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted March 10, 2002 Share Posted March 10, 2002 Cruez I found a site that spec's out GM's exact formula for the original 302. I may go by it...except for the extremely high CR..I want it on pump gas. don,t bother, that engine technology is over 33 years old, at the very least use a set of iron eagle 200cc heads and a crane # 114681 flat tappet cam,with a 9.5cpr on a 327-350 with a victor jr intake and headers the orriginal z-28 engine made about 290 hp acording to chevy and with headers and head porting got to about 375hp while the newer combo makes about 425hp or better still build a 383 that way as no one can tell from the looks but the 383 combo will get you about 433hp but a much wider torque curve (btw getting the compression up to 10.5/1 which that cams overlap will allow on 93 octane and a little octane booster will get you to about 457hp Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted March 10, 2002 Share Posted March 10, 2002 Cruz, The optispark usuallly goes bad due to condensation causing corosion inside. The newer (95 and up I think) had a vacume line added on the optispark that keep this problem to a minium. There is even a kit to add this type of optispark to earlier model lt-1's. As far as the water pump issue, well is this going to a daily driver? My conversion is about 6 years old and still on the original 1993 water pump. I'm just up the road in Harrisburg if you want to check out the car. Should have it on the road again in a few more weeks. Mark Quote Link to comment Share on other sites More sharing options...
BLKMGK Posted March 11, 2002 Share Posted March 11, 2002 The Optispark is a really bad design IMO. It's pretty much just a distributor with an optical wheel inside too. I see no easy way to replace the "cap" yet previous distributors had to ahve their "caps" replaced - why not the Opti? When ours went I took th eopportunity to take it apart to see what was inside. I was shocked to find the distributor "terminals" worn badly and a very clean optical sensorwheel area. No rust or dust inside which was a surprise to me. A waterpump had failed a year before but the Opti had survived. Ours was indeed vented (shrug). Bad design it may be but it does seem to work okay - I think ours was original! Pricey suckers too... Quote Link to comment Share on other sites More sharing options...
Cruez Posted March 11, 2002 Author Share Posted March 11, 2002 Hey grumpy..wasn't that 290 hp on the 302 underrated??.... 1969, the 290 horsepower 302 Z28 was under rated according to the factory and actually produced upwards of 350 horsepower. Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted March 11, 2002 Share Posted March 11, 2002 yes of course it was they were trying to get the best power to weight break on the rules for the TRANS_AM CAMAROS that were restricted to 305 cid max engine size but like I said (the orriginal z-28 engine made about 290 hp according to chevy and with headers and head porting got to about 375hp but remember those TRANS_AM camaros also ran other than the factory supplied production street cam and they raced useing dual quad cross ram intakes that got the cars that were racing to over 435hp but we are talking about the hp as they came from chevy and that was not over about 325hp without the headers and head work. Quote Link to comment Share on other sites More sharing options...
jt1 Posted March 12, 2002 Share Posted March 12, 2002 Cruez, a friend has a like new Holley 600 cfm EFI setup he wants to sell. I'm just right up the road in Ellenboro. Let me know if your interested. About 400 bucks IIRC. Quote Link to comment Share on other sites More sharing options...
Cruez Posted March 13, 2002 Author Share Posted March 13, 2002 You've got PM jt1. Quote Link to comment Share on other sites More sharing options...
Mike kZ Posted March 13, 2002 Share Posted March 13, 2002 I've got a 327 with an Edelbrock pro-flo EFI, with my trickflow G2 heads, the engine made 435hp 493tq on an engine dyno. Check my first link below for a closeup pic of the engine. Quote Link to comment Share on other sites More sharing options...
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