JE pistons, I'm using them now. 2618 alloy, very light. I have a new set of 416 c.i. here and they weigh 420 grams ea without pins they're domed and 4.070 bore. SRP, also very light would be a good choice for a DD because of they're high silicon content/ low expansion is a 4000 alloy. Just my 2 cents. Icon pistons are even lighter. Light pistons never hurt in a NA motor
Last edited by 64post; 03-18-2017 at 11:41 PM.