The SRP and all 4032 alloy pistons were never designed to be a full racing piston. The 4032 Alloy is more brittle due to the high silicon content. For a street engine it is nice to run a 4032 due to the smaller expansion rate. I have SRP in my 383 that makes 594hp and 531 torque in my daily driver. I built this engine knowing that nitrous or alcohol would never be used. I will say and gladly tell anybody when they are going beyond the abillities of a SRP.
Zip you need a 2618 piston no question.