Quick replies, thanks!
I'll skip the crank balance, but will be sure to match piston & rod weights.
Very interesting to hear about crank on the lathe!

Another thing I would believe is that crank bending moments induced by piston reciprocation would dwarf any counterweight mismatch centripetal forces.

Last edited by Ott3r; 03/20/2020 3:28 AM.

'59 Chevy Suburban, NAPCO