Use a table ban saw to hack off the 340 piston crown .

Jessearent said

Thanks polyjohn....by the way, what's the measurements on old poly hemis? Anybody know? I think there was a 331 ci and I am thinking a 354?

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You straighten us out polyjohn..so your saying I need some old forged 360 pistons .070 over for the .0.30 over bore 340 block I am looking at? And taking off bout 0.030 from the top is plauseable?