The Right Pistons

[Heck2G14]

I would like some help figuring out the right .30 over pistons for my build.  Heres the direction im headed.  Not building a world beater here.   
Motor is a 440 1974 model ( I'm wanting 10.5 - 1 compression)
Stock rods, around a 528 lift mopar cam, a little work in a pair of 906 heads ( Port and polish ),dual plane aluminum intake, holley 750 double pumper, 727 tranny w/ 2500 stall, 1 3/4 headers, 2 1/2 inch exhaust.

This is going in a 68 charger with 8 3/4    4.10 posi
My big question is domed or flat top and why?
Its going to be a weekend driver around town.

anything advice or criticism will help.

Thanks, Rob

[BrianShaughnessy]

906 heads?    Shoot for 9.5 compression unless you want to listen to the soothing sounds of detonation running pump gas.    So basically... flattops.

[andy74]

906 heads?    Shoot for 9.5 compression unless you want to listen to the soothing sounds of detonation running pump gas.    So basically... flattops.

i second that

[firefighter3931]

Speedpro 2355 forged pistons are perfect for that application. They weigh almost the same as a factory cast piston so balancing will be close and it should be done while it's all apart anyway.   

Resulting compression will be in the 9.3-9.5 range which is ideal for pump gas with an iron open chamber head. 



Ron

[Chryco Psycho]

I agree Speed Pro 2355 flat tops , they will give you the right compression & better burn being a flat top

[jg68]

I agree also, get the 2355s.