Anyone have the CC value for the nailhead 603 heads? Cannot seam to locate that info anywhere in the manual or the Internet! Thanx in advance!
do you have the heads off? pretty easy to cc them if you have them off. if not maybe someone has a set off but wont do you any good if you do not know the exact history of the heads. If they have been machined/decked or cleaned up/ ported those are all things that will change the cc of each combustion chamber. Paul turbocharged 401 nailhead
Thanx Paul, Heads are off and have been reworked. Going to CC them tomorrow AM with the guy that did the block work and is assembling the shortblock.
Thanx to all for info! FYI. Measured them all and they averaged 126.4cc. Head and block must have been cleaned up a few times!
