Cryogenic treatment

[64physhy]

I'm building 410" stroker for my '74 duster. I have an Eagle Cast crank that I was going to get cryogenically treated for strength, but I just read somewhere that cryogenic treatment doesn't do any good on Cast. If it doesn't do any good, why is it offered? Does anyone have any knowledge of this? I don't want to throw money away to get something done that doesn't do any good.
:read2:

Thanks,
Dave

 

[moper]

Cyro treating helps stabilize the molecular formations in the iron. Cast cranks have less of the right type of structures to be affected as much. It will still help, but IMO it's useless, and the crank will distort and need to be re-machined. Those cranks will easilly take 550hp and they wear decently. If you want a better crank, upgrade to a forged. It's not worth strengthening a mid grade part when there's better/stronger available for a few more $$

 

[stroked 340]

www.hekimianracing.com he'll tell ya' all you want to know abour cryo. treating he's been doing it for awhile now....