Dan Heath wrote: > Yes, you will lower the compression ratio, but, as soon as you adjust the > height of the head, you have to make longer , or shorter, push rods because > it really messes up the geometry of the rocker arms.
OK, Dan. To me it's easy, but to the rest of you guys, it's probably not. Yep, it may very well change the pushrod length. That's easy enough to fix by making new pushrods, but I realize life's too short for that sort of thing for the average KR builder. Rocker arm geometry is something that should also be checked at assembly, no matter what kind of engine you're building, and no matter how many modifications you've made. This is detailed at http://home.hiwaay.net/~langford/corvair/valve_geometry.html , and yes, it actually takes time and effort. There are a lot more details on Corvair engine building itself at http://home.hiwaay.net/~langford/corvair/trial_assy.html , but I wouldn't expect any KR builders to waste their time reading it. Some people are just meant to slap engines together and go flying, and that's fine with me. Personally, I want to know exactly what's going on in mine in terms of compression, compression ratio, valve geometry, mixture distribution, head and exhaust temp on all six cylinders, etc. Sorry I brought it. Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford
