Some pros:1972ACGT said:I was thinking of milling the head I'm going to use on my low-comp. '72. what are the pros and cons of doing this???
Milling .050" will increase compression by a little less than 1 full point (about .8 to .9). You'll get about 1.1 point increase on an earlier (flat-top) engine with .050" milled. You shouldn't have any clearance problems, but with .050" milled you'll definitely want to get the cam timing corrected, or you'll lose valuable low-end torque.1972ACGT said:Thanx Rally Bob! I'm trying to use a Crane cam that has a 434 lift and 264 duration. would I have any problem milling it .025 or .050?? what sort of compression gain would .050 bring??
Sure, that would work as long as it's a hardened washer and it has a chamfered hole to clear the underside of the bolt head. A non-hardened washer would crush and throw off the torque spec.Travis said:Any reason you couldn't use a shim under the bolt head?
Any reason not to use a Kent Vernier Pulley?You would be shocked at the forces put on a timing chain/gear in both directions. You should utilize an offset bushing to correctly locate and index the timing gear.