thr_spectator Posted February 8, 2005 Report Share Posted February 8, 2005 I already ran the castings on the heads and they came back as 60cc chamber heads....but i was told that they were polished and ported and now they are 64cc heads?....im a little confused on this any help would be appreciated Link to comment Share on other sites More sharing options...
supertx Posted February 8, 2005 Report Share Posted February 8, 2005 If they are 64cc the combuston chambers have been opened up [ground or machined] unless theres that much difference in the castings which I doubt. Most time when port and polished is referred to there talking about the intake runners and exhuast runners. Link to comment Share on other sites More sharing options...
thr_spectator Posted February 8, 2005 Author Report Share Posted February 8, 2005 If they are 64cc the combuston chambers have been opened up [ground or machined] unless theres that much difference in the castings which I doubt. Most time when port and polished is referred to there talking about the intake runners and exhuast runners. Thats what i thought. About port and polishing..I was also told that these heads were open chamber?..i thought that 305 heads were ALL closed chamber? Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.