Originally Posted by turbobitt
I am in the planning stages of my next Hemi build and not really happy with any of the shelf pistons that are available and was wondering why I don't see any 4.15 stroke/7.1 rod piston choices out there. It would seem like a nice package with a compression height of 1.55" and the extra clearance of the 2.2 chevy big end size and .990 pin. Are there any disadvantages out there running this stroke and rod combination?
Allan G.


I never see a shelf piston that makes me happy. Just call Ray Barton and tell him what you want and he will have Diamond make them. And I have a set that I don't need if you want them. Might save you a little money.

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2011 Drag Pak Challenger