360 Harmonic balancer

70aarcuda said
that is the casting number for the RACE R block....BUT...just cause you have that casting does not me you have an R block...look over by the Dipstick...DO you see a Big R casted into the block?
NO...then you have a standard run of the mill 318 block

I'll have to look and see what casting the X block uses.

Thanks for thumbing through all those snowmobile pics.

Any of them show you assed out?