Quote:
Originally Posted by Flash68
Scott, that is good info. I bought a used Callies Magnum XL (came in the motor I bought) that was sent out to Marine Crankshaft in Socal for some repair and a cryo process I believe? (I cant' recall - it was well over a year ago now) because it was the only place in the state here that my 70 yr old engine builder trusted. What do you know about the crank? I'll have to see if I can dig up any info on it.
Bryan, not sure I would rush some of these decisions for one event... there will be plenty others and I think I'd want the thing done right -- by the right people. Just feels like that is influencing you quite a bit here and ask that you take a hard look at that thought process. Ya know? 
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The Magnum XL series cranks are designed to be used in maximum output race efforts, and are lightweight. They are nitrided for hardness, which is a process that is done in a vacuum, that removes the oxygen content from the steel, and actually diffuses nitrogen, hence the name, into the surface of the crankshaft. This is the basic jest, to the process, which is very involved, and has many other ways of being done also. These crankshafts are nice!
Was this crank for an LS engine? Sorry to hijack, Bryan!