L99 4.3L V8 Swap - 95 M6 Z28??
#21
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So there is nothing at all to be gained with better heads? That just doesn't sound right....or are you saying that the aluminum head is not any better? (Doesn't sound right either) OR more likely, you are just saying the aluminum ones would be better, but not necessary. ??
Lastly, I mean no offense (this is actually a compliment really) but saying a L99 went mid 7's in YOUR camaro with just a .030" bore, cam, and springs sounds very impressive UNTIL I remember that your car is completely sorted out and set up bumper to bumper.
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Honestly what do you think the same L99 would have ran in the typical street car with normal weight, A/C, bolt-ons, gears, and drag radials? I am asking seriously because I have zero experience with this engine.
#22
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What I am saying is that with a 3" stroke I really doubt that you will see much if any improvement will the aluminum heads over the stock ones. The exhaust ports are pretty much the same. The intake ports are not far behind the LT1's. There might actually be an advantage to having the 1.84 valve with the small bore.
I guess for me it boils down to I'd already have the LT1 aluminum heads and know they are ready to bolt on, so I'd try them if for no other reason than the 50# or so off the front end.
#23
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I had a 93 trans a i did this too. t56 and a l99. I put a stock lt1 cam and springs in it to get it running while i was in the army. ended up selling it to some young gal in alabama.
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Well the car in question may already have an L99 in it since I noticed the heads are iron when I was taking some accesories off of it. Or it could be just a B-body LT1. I don't know when I will get around to working on it again.