Jeff is about right on the amounts. I use a conservative number and have it at .014 for me . Engines last longer and it reduces detonation. I assume you got the new head buttons by now.
Jeff and John, thanks for the info/help. Yes I got the head buttons,thanks. It came from the factory w/ one .008 shim so I was going to try that. It measured at .010 clearance with that shim. I've heard with less nitro content you should have less head clearance?
20% nitro. When I took off the original head that came new from factory it had one shim that was 8 thousand'ths. I measured the head clearance it came to.010. Replaced head button with one I got from you,and shim from you (.008) same .010 HC, do you think that would be best for 20% nitro?
20% nitro. When I took off the original head that came new from factory it had one shim that was 8 thousand'ths. I measured the head clearance it came to.010. Replaced head button with one I got from you,and shim from you (.008) same .010 HC, do you think that would be best for 20% nitro?
John, thanks again for digging out those shims and selling me the head buttons. You would'nt happen to know if the piston & sleeve for a cmb 67 evo would work in my cmb cam 67 gold head?
John, thanks again for digging out those shims and selling me the head buttons. You would'nt happen to know if the piston & sleeve for a cmb 67 evo would work in my cmb cam 67 gold head?
Most welcome. I do not believe the EVO P/S will fit the hydro CAM engines. They are profiled different and have different cranks. The EVO's are 2 piece cranks and the CAMs are generally hydro engines with a 1 piece crank. I have a new CMB 80 P/S from an EVO and a CAM engine and they are different.
the evo-1 gold head black case and the purple head hydro 99 cam version p/s will work but the green head cam syle will not because of a longer stroke as i was told, plus you can find the 80 p/s of the evo-1 and the hydro 99 cam engine will work too. please correct me if i'm wrong anybody.
