Mill the heads some, I took .020 off early 5.7 hemi heads and didn't have to change anything else. The dss pistons are around 550 a set.

68 Road Runner, 69 Belvedere, 71 Challenger Vert
340 barracuda, 01 Ram CTD, 95 Ram, 04 Ram, 85 Daytona turbo Z
66 GTO, 06 Magnum RT AWD. 07 Ram CTD, 07 Ram