C80E head confusion
#1
C80E head confusion
I picked up a set of C80E heads but am confused on the specs. They have no 4V or double dots over the 289 and do have one M cast under a port with "4" under another, but they are closed chamber. They seem to contradict what info I've found about them. I haven't measured, but it appears they are the 54cc variety. Who has the real scoop on these? I also have to see if they have hardened seats as the PO had a bunch of work done to them.
#2
I picked up a set of C80E heads but am confused on the specs. They have no 4V or double dots over the 289 and do have one M cast under a port with "4" under another, but they are closed chamber. They seem to contradict what info I've found about them. I haven't measured, but it appears they are the 54cc variety. Who has the real scoop on these? I also have to see if they have hardened seats as the PO had a bunch of work done to them.
#4
Last edited by 2+2GT; 08-01-2010 at 05:14 PM.
#5
#7
Does anyone see what I'm questioning? I agree, the data says these are 64cc heads and I'll check them should I ever get a moment to breathe, but who can argue the port shape is the same as the 54cc 4v heads, even though these obviously aren't 4v heads. That's why I ask "what's going on here?" My ports are the same as B to me. The pics suck as they are reduced, but my chambers have the downward left side sweep as in B and not the symetrical shape as in C. Can anyone argue that? Like I said, I'll whip up some CC tools just for grins. Something just doesn't add up to me with the numbers.
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