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I have a GTO LS2 engine with only 600 original miles on it. Its going in a '68 Camaro convertible. Rear end is a dana 44 C4 IRS. The car will be a cruiser but due to the IRS and convertible I can only put too much torque through it. At the same time... what's the fun of just putting a stock crate engine in? I know most guys on here prefer the "max" but I'm looking for the "mild."
So I either do some 243 head (CNC) work (I've actually have a set of 0 mile LS6 valves) and a slight cam or go the L92 route. Again, I'm only looking for ~ +30-40 hp/tq from stock and "manners".
So below is from an earlier GMPP catalog and they claim +40 hp/tq on a stock LS2. Is this for real... meaning, only add L92 heads and LS3 intake to a stock LS2 for a net 40? Please don't flame me for not wanted to go farther!
If you're only looking for 440 crank HP, don't even bother with a "power package". A VERY mild aftermarket cam easily get you more than that with stock heads.
I consider my cam fairly mild with stock LS3 heads and it's putting down 130 HP more to the crank than a stock LS2.
Hell, a good set of headers and exhaust would probably get you your 40 HP.
The *519 camshaft is the stock LS2 cam so its just L92 heads + LS3 intake add. I do have 1 3/4" long tubes which I recognize gets me a little farther down the path.
I guess the easiest thing would be to keep the 243 heads and just add a mild cam. I was just curious if just bolting on L92's on a stock engine gains us 40 hp/tq. Pretty impressive actually.
I was just curious if just bolting on L92's on a stock engine gains us 40 hp/tq. Pretty impressive actually.
Not really. If you read closely, in the first "package" it mentions using the stock LS6 cam, while that is never mentioned in the second one. From that, I assume that it will be using some sort of bigger camshaft probably something like the GM ASA or similar.
For a mild LS2, you can leave the heads alone and achieve your goal with headers and a mild camshaft. You could also port the LS2 intake for more gains without sacrificing streetability.
10-31-2014, 07:35 PM
LS2 + L92 GM Power Package 
I know most guys on here prefer the "max" but I'm looking for the "mild."
