I agree that center counter weight could be better. That being said my 4.5" stroke crank doesnt have center counter weights. Though the RPM is kept relativley low at 7200. It's never hurt a main bearing. Except for last years failure which I believe started with a bent oil pan, the rod bearings look great. The others that were not hurt had 475 passes on them. Looked great. They still snapped in place in the rods.
Doug

Last edited by dvw; 11/02/22 01:07 PM.