Quote Originally Posted by steelsixpack101
i have set of 71' 402 big block heads with the casting 292. does anyone know the combustion chamber size off hand? these are not closed chamber heads, they're open chamber with a cut back by the exhaust seat. i need to get my compression up to 9.5:1-10.0:1. i have 17cc dome pistons, my bore is 4.155,stroke 3.76, deck height is about .010, and running .020 head gasket. i can have the heads milled to get my compression up, but i need a starting point, help would be appreciated!
I have never seen a 292 BBC head.
There are 290,293,294 heads.
The only 292 heads I have seen are SBC "turbo" heads or early Bowtie heads.
Are you sure about the number?