SPECIAL AND NUMBERED STONES If I need to touchup a seat after machining, even on the Serdi, I go to my numbered stones and holders. I have three numbered holders and always use them as pairs. Sometimes if I just need a quick touch up and the stone is good, I won't...

HOMEMADE VALVE HEIGHT MEASURING I made a valve tool to measure valve tip height as shown in the picture. I use it before cutting and write it down and check it after valve job. It is also very handy when setting new valve seats. It is easy to make. Take a digital...

LIFTER BUCKET REMOVAL When the lifters crack on 1.9L VW diesels they will expand in the bore of the head. Welding a bolt on top of the lifter and then using your slide hammer makes for easy removal. Tom Prodahl Cylinder Head Service Minneapolis, MN JUNE, 2022

RECYCLED MEASURING TOOL To install valve guides on my heads, I just make custom fit measuring tools out of the 6" steel rules I get at the trade shows. I cut them to fit in the lifter bores of the overhead cam engines. It's quick and simple. Matt Peebles Matts Machine...

FALSE SEAT I.D. When trying to determine if an iron head has a false seat ring in, we have found the fastest method is to mag-check the head. If it has a false seat in it, you will know instantly. Adney Brown Performance Crankshaft Ferndale, MI  MAY,2022

USE THOSE HOLES Most people use just the outer two bolt holes when fastening a cylinder head to a mounting fixture. If there are additional holes in the plate that line up with the threads in the fixture, then consider using the extra threads for increased rigidity. ...