well let me tell you, im a muscle car guy, and the engine in our 77 camaro has je flat top high comp. pistons, and there also in some nascars, indy, and F1 cars, if i got a piston i would stick to the brand that i know can handle 800 nascar HP, the 15,500 redline of a F1, and the deamands of a street rod, go with the JE!