camshaft lobe failures...

Another hint..once the crank is in the block (i do it during the mock up..) install the cam. Make sure the cam bearings arent too tight and the cam rotate free. I use a small black permanent marker to put a spot on the lifter and lifter bore. Install the timing set. Then turn the crank by hand. The cam should be lubed with plain oil for this..and doesnt need a lot..even WD40 will work. You want to see all the lifters rotate. If they dont rotate with no pushrods or valve spring, they sure wont with the other parts installed. Now (the mock up) is the time to find and correct this stuff, and then you can carefully hone or peen the lifter bores to fix it, and remove all the particles the clearancing leaves behind. This is something fairly new for me..I never used to, and never lost a cam, but I just think I was lucky. You cant say it enough..dont rush, check,be sure..that works for every engine project.