Which process did Ford use for hardening the crankshafts from the factory?

 

I give up, what did they use?

 

Nitriding is pretty rare, usually only on racing or other limited production specials, like the supercharged 3.8 in the '90's T-bird. I just had a Chevy Corvair crank nitrided for my aircraft engine conversion. GM did it only for the turbocharged ones.

Jim

 

Yeah I wouldn't doubt some of the higher performance would use a hardening process for longer lasting parts. So you are saying the crankshafts from the factory were hard enough to resist wearing out prematurely without using a hardening process? or I should say an *additional process to further the resistance capability*