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Old Aug 12, 2018 | 09:00 AM
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77custom408
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From: Fayetteville Arkansas
351 crank question

Last week I picked up a 351c block and the guy threw in a crankshaft and rods he said went with that block, when I got home I noticed the crank had 3 machined holes in the counter weight telling me it’s been internally balanced before, can I reuse this crank or is it toast and I should just toss it? Thanks!
 
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Old Aug 13, 2018 | 10:04 AM
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TMI
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From: Fairmont
If it has holes drilled, it has been made lighter, typically for a lighter rotating assembly. You would see heavy metal added to make it internal balance.
Very possible to still use the crankshaft.

 
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Old Aug 13, 2018 | 04:33 PM
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77custom408
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From: Fayetteville Arkansas
Ok thanks TMI I have never seen this on the various engines I’ve bought before and wasn’t sure if the crank was junk at this point, I should take the crank to the machine shop and see what they have to say I can also pick up a complete 351c from this guy for $300 and use the crank from it but I was hoping to use this one if it’s useable
 
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