In 78 even K motors used F2 style heads. So it is definitely going to lower the compression to swap a 78 head onto an earlier motor. Also on F heads 2 of the Head stud bolt holes are not solid all the way thru and it will leak oil from the bottom up out the two rear center stud passages if you do not deal with that somehow. Roy
>From: "Frogspawn Inc" <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: Multiple recipients of list <[EMAIL PROTECTED]> >Subject: Fw: Head question >Date: Thu, 27 Nov 2003 10:27:08 -0700 (MST) > >----- Original Message ----- >From: Donald Laubach <[EMAIL PROTECTED]> > > > I axed this question a cxouple days ago but miught have gotten lost >among > > the sighs of relief that the liust is back (Yea!) > > Will a 78 head fit a 75 block as a direct swap on the 750? >Yeh it will fit, no problems. Only thing to watch is if it's an F2 head, >the >valves are bigger and fragile and the combustion chamber is slightly >bigger >so the comp ratio will be lower unless you use F2 pistons. The corollary is >that F2 pistons in a K or F1 bump up the compression. >Regards >Paul H > _________________________________________________________________ Has one of the new viruses infected your computer? Find out with a FREE online computer virus scan from McAfee. Take the FreeScan now! http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963
