Originally Posted By BradH
Originally Posted By fast68plymouth

I guesstimated about .0055" per CC, so I cut them .055".
As it turned out, that was worth 12cc, so they ended up at 70cc's.

Did cutting them that much regain anything in lost quench pad due to the extensive CNC carving in the chamber?

If they stay together, those could be some pretty effective flat-tappet cam heads.


Not really.....the chambers didn’t appear to shrink from the sides with that amount of milling.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads