383 Rebuild - New Piston Suggestions

[Randy Wilson]

Be real careful. Really hard to get off the shelf 383 pistons that will have useable compression. I shaved my heads ALOT and ended up with like 8.9:1 compression. and that was a closed chambered head. What is the cc of the heads? Pick a piston and heads and I can run some compression numbers for you.

Couldn’t agree more. I believe there is only one forged flat top that will give you 9.5 w open chamber heads and.020 gaskets. All the rest suck and kill power

 

[gtxrt]

Couldn’t agree more. I believe there is only one forged flat top that will give you 9.5 w open chamber heads and.020 gaskets. All the rest suck and kill power

what piston is that ?

 

[Randy Wilson]

what piston is that ?

I have written it down somewhere. I'll let you know

 

[BSB67]

The worth while pistons have all already been discussed. There are options that can get you to whatever CR you want for pump gas.

 

[gtxrt]

The worth while pistons have all already been discussed. There are options that can get you to whatever CR you want for pump gas.

sorry i don't see any pistons. I would want a light weight forged piston with thin ring pistons with valve notches giving me 9.4 - 9.6 compression without decking the block or milling the heads more than .010 just to square it up if needed and a quench of .035 to .050 and running iron heads so would need two different sets for guys with closed heads and opened heads. would not want to use a .020 steel head gasket only for a last resort because of cooling leakage.