[Rich Biebel]

I once had a set of small block heads brought to me for repair that had old BRC rocker shafts. Stuff was all worn out and a mess. Needed new valves as well. I convinced the racer a simple set of stud mounted rockers would be fine.

I soon discovered the stud holes had been drilled and tapped by hand as they were all crooked and if you sighted down the side it was rediculously bad.

I was able drill and tap the holes in my seat and guide machine and helicoiled every hole......They were not perfect as it was impossible to get a perfectly straight hole after what was done previously....

It all worked out well and the guy got many runs out of those heads....


Seat and guide machine or a Bridgeport is a must....if there is enough stud boss left to do anything with. I would not consider welding them as I just don't feel that is a good option