I am trying to figure out piston dish on my car so Lloyd can make my custom cam. When I bought the car the guy simply put down flat top pistons on an info sheet. Are most flat top pistons -5cc dish? Is there a way to calculate what they are? I am pretty sure my engines compression was 10.5:1, but am unsure of the head gasket thickness, or of any milling that may have been done to he block. Also he said 64cc combustion chambers. thanks for any help.

 

-5cc is close enough for flat tops with valve reliefs.

Rich

 

Thanks, thats the answer I was hoping for.

 

yeah, thats about right