Has anyone run into a different bolt pattern diameter on their FE harmonic balancers?
I have a chrome SFI fluiid balancer on my 390 but the bolt holes do not line up with the March aluminum lower crank pulley. I've tried rotating it but the 3 bolts holes are off about 1/4". The bolt hole circle is smaller on one then the other.
Surely you don't have to enlarge the holes on the pulley!!!
Thanks
Dave
elgecko