My 422 smallblock build

Pistons are zero deck with 23.5cc dish. W2s are open chamber variety that measured 59cc. Felpro 1008 will result in 10.5-1 compression and Mr. Gasket 1121G will bump compression to 10.75-1.


Too bad you didn’t stick the piston out .045ish. That would have gotten you closer to 11:1 or a bit more.