question on head studs

hi is it possible to cut down head studs and have them re tapped with new threads to fit a short deck block, if so who can do it? thx

 

Shortening and rethreading head studs

It is possible but IMO not practical. The type of steel used in these studs is quite hard (on the order of 60 rockwell, file hard). Conventional dies will not cut it well if at all (an old school Craftsmen high quality tap and die set would last long if at all). You will not likely find a machinest who will take on the job. Secondly, ARP studs (they make KBRE head studs) roll the threads into the studs thereby creating a U shape valley not a V notch as a die would. The V notch thread creates a stree riser that effectively weakens the stud by creating a sharp notch that is likely to propagate a crack creating failure of the stud. Best to trade for the studs needed or buy them outright. Hope this helps

 

was told I could do it to the course end of the studs, and they will work. anybody else want to chime in on this idea?

 

Shortening head studs

Yes, I had that thought after posting. If I were to do it I would shorten from the course thread (block) end. Just be aware it will be hard on threading tooling. I would shorten them with a cut off wheel (preferable wet) . Go slow and keep them below 400 degrees if possible.

 

I will probily get them machined off just after he re threads the course end. thx