cast piston question

[z-man]

I\'m in the process of building a 406 and trying to decide on what cc head to get. I have silv-o-lite cast pistons. For 76cc head it\'s 10.3:1, with 64cc it\'s 11.7:1. My truck will not see too much street use, so I\'m not worried about running expensive gas. Will these pistons be OK to run with 64cc heads? Thanks

[speeder]

I think that it would say in the specs if it was not. I always check with my engine builder on those. The piston needs to be clearanced usually for the cam and valve/lifter combo, so make sure that those will work.