If you!

[MOP]

SB Chevy? If you have 9:125 static with 72cc heads what would the static be with 64cc heads?

Phil

[BUIZILLA]

between 9.92 to 9.95 depending on engine size... that assumes zero deck, 5cc dish pistons, 6cc gasket volume, and TRUE 64cc chambers

[MOP]

Thanks Jim, I spotted some aluminum heads and was passing on the info to a buddy. Boat app he was concerned about compression, I told him he could be up a bit going from iron to AL. He would like about 9:2!

[Planetwarmer]

Thanks Jim, I spotted some aluminum heads and was passing on the info to a buddy. Boat app he was concerned about compression, I told him he could be up a bit going from iron to AL. He would like about 9:2!

Use thick head gaskets.