Will swapping to LS2 pistons make that big a difference in power?
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TECH Fanatic
Joined: Jul 2006
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From: North Bay, Ontario
Will swapping to LS2 pistons make that big a difference in power? Currently have an LQ4 shortblock with untouched ls3 heads waiting to go on. Before i get the engine rebuild, is it necessary to switch to flat top ls2 pistons or will i make due with the stock lq4 dished ones?
What kind of power difference will they make? im not sure what to do. Engine is going in a 69 camaro street driven car only
What kind of power difference will they make? im not sure what to do. Engine is going in a 69 camaro street driven car only
Well I think you should do that first. I'd call Ed Curtis from flow tech he can spec you out a badazz cam but so can Futral! Give them a shout and tell them what you got and what your goals are bud.
The higher compression of the Ls2 pistons will help, but what will help the most is the added quench. With dished pistons, you will have virtually no quench which will make low end torque suffer. You will have to run more timing to make that up, ultimately limiting your overall compression. A 10:1 engine with .035 quench volume will be more responsive and probably make more power than an 11:1 engine with .055 quench volume.
Thread Starter
TECH Fanatic
Joined: Jul 2006
Posts: 1,179
Likes: 0
From: North Bay, Ontario
The higher compression of the Ls2 pistons will help, but what will help the most is the added quench. With dished pistons, you will have virtually no quench which will make low end torque suffer. You will have to run more timing to make that up, ultimately limiting your overall compression. A 10:1 engine with .035 quench volume will be more responsive and probably make more power than an 11:1 engine with .055 quench volume.
