Camaro 3.4l-3500 hybrid build

[rcf4]

I planning on building my 3.4l up with the 3500 components. A mechanic friend suggested I might want to change out my pistons as the 11.5 to 1 cr. could damage the stock pistons. My motor has 85K+ on it and was very strong running when I pulled it. No smoke, etc. What do you all think? If you agree, what pistons do you suggest? I've been looking on the net and am having trouble finding any to fit the motor.

[bszopi]

You can get stock replacement hypereutic (sp?) pistons from Sealed Power. If you want to go up to forged, then you will have to custom order them from any of the piston companies (JE, Ross, Arias, etc).

[ForcedFirebird]

As long as you tune and use the right cam, the 11.5:1 is no problem on pump gas.

[rcf4]

Camaro 3.4l-3500 hybrid build

Thanks for the replies. I'm beginning to think of rebuilding the motor to put back in my MGB. It has been sitting for 2+ years now. My plan is to keep the 11.5 to 1 cr, use the WOT P&P 3500 heads and intakes, roller rockers, etc.; long tube headers by Dann Wade (MGB), large Throttle Body, larger injectors, and Megasquirt. Any opinions on probable HP?

[ForcedFirebird]

250-ish

[Guest]

High compression alone will not have any greater adverse effect on OEM pistons than aftermarket pistons.
The trick is to have everything tuned well.
Having higher SCR just means there's a smaller tuning window, smaller margin for error.