Re: V-8 head part nbr vs cast nbr

Posted by Jack Vines On 2008/9/17 17:28:29

Thanks for the info. The one clean crank I have on hand has a 4 and a B stamped back to back, meaning one is upside down to the other. I believe this crank came from a 374". Any ideas as to what the B correlates?

I have one reliable sighting of 320" forged cranks and supposedly, they had smaller counterweights than did the 352". Randy, did you notice any physical differences between your forging and castings? Obviously, with solid crankpins, it should weigh more than the 56# of the cast crank with hollow crankpins. The solid pins would add several ounces to the rotating weight, so the counterweights should have to be larger to compensate. If anyone ever has one out of a car, weigh it! On second thought, I know where there are a couple. I'll see if I can get one weighed by phone.

thnx, jack vines