Inliners International Forums General Discussion Engines Crank shaft weights between stock cranks?

I believe the lighter weight,more desireable (SP) cranks are from 250's were built in the 80's.

I have heard the circle track guys love them,I have one for my next build. Can't remember the P.N.

Mike Kirby has had crankshafts lightened up a lot, & said,they do not make his race cars any faster or make more HP & they do not last as long.

Having big heavy counter weights actually help make the engines/cranks last longer.

MBHD