How to put together cut to length pushrods

The Comp tool is a waste of $$ because the stems of the pushrod cups vary in size over a range of .003-.004", and you need an interference fit of around .002". You will need to get a few small drills around the nominal size and customize the holes where the cup stems press in.

Here is a thorough write up on how my son and I did this very process, with pix and ways to do it with no lathe or special tool, just a vise, hacksaw, grinder, hand drill, and drill press. Of course, with a lathe, that work even better.

Field Cut/Assemble Custom Pushrods