If i ordered a new set of "bare" s/r torquers and bought a new set of valves and springs of my choice could i just lap the valves in and go, or do they need to be sent to the machine shop.

I assume the castings come with a nice valve job and the new valves should be ready to go...right?

Thanks

 

i'd lap them in, check installed height on the springs

 

New heads? New valves? I'd second that vote for a hand lapping, then a thorough wash.