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· L&M Engines
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Discussion Starter · #1 ·
The saga of damaged crank snouts has naturally migrated to the 5.0 engine as long as we continue to put these large blower loads to a cantilevered 1.250 diameter shaft.

I attached a photo of a OE 5.0 crankshaft in the Magnaflux booth.
Looks kinda' normal from 25+ lbs of blower.
 

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Not sure if your talking to me but I have seen atleast 3 crankshafts snap off at the very end. IMOP and many years racing with centrifugal blowers it's usually the person is inexperianced and over tightens the belt which pulls up on the snout which then it breaks. Also I have seen them break with Cog setups there unforgiving. With a cog system the crank takes way to much abuse it's constinalty being yanked back and fourth. So never over tighten the belt and stay away from manual tensioners unless your experianced.

I'm curious as to your thoughts on load of say a procharger that hangs out there more vs a vortech that uses the stock pulley, vs a twin screw type?
 

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