Yes this is an ancient thread, but if you still have that 360 reverse rotation crank, I need one. BTW, there is more to a reverse rotation crank than the opposite direction oil sling grooves. The oil holes from the main journals to the rod journals are drilled at the opposite angle as well as the chamfering of the holes. Turning the crank a few thousandths to eliminate the sling grooves does solve the constant oil leak at the rear main seal. However the crank rotation will limit the amount of oil that gets to the rod bearings; and will starve the rod journals at high rpm.
