FINDING YOUR CENTER
One the most challenging jobs is the 302 -351W cylinder head stud removal that fastens down the intake manifold. It rusts and sits at an angle which makes it almost impossible to center a drill bit for removal. The solution is to drive a 1/4-inch roll pin under the cylinder head, this will make passing a 5/32 drill bit through perfectly centered. Then you can try an “easy-out” or an E-drill bit to get most of the material left. Then pass the 5/16 tap, as shown in the picture.

Luis Guzman
Technomotors
El Paso, TX
August, 2022