Author Topic: Used Forged Crank  (Read 214 times)

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Offline TexasT

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Used Forged Crank
« on: January 14 2021, 11:42:18 AM »
As we know I am a cheapskate. No secret.
I found a deal on a GN1 forged 4340 crankshaft that has been turned down .010/.010. This isn't a big deal to me but the seller sez it hasn't been checked for cracks, magnafluxed or whatever. This seemed like a red flag to me as I would have that done before spending the coin on the machine work.

Any one else think this is odd? Didn't really want to get stuck with a big paper weight.

Thanks
Rich

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Offline Steve Wood

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Re: Used Forged Crank
« Reply #1 on: January 14 2021, 01:44:44 PM »
wonder if he means after grinding, or before grinding
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Offline ULYCYC

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Re: Used Forged Crank
« Reply #2 on: January 14 2021, 03:16:10 PM »
New one is around $600.  Labor to make the old one near new condition a few hundred.  But a new one should be checked by the machinist also. If you paying under $200 used Then I would say it's a good deal if it can be reconditioned and used  for a daily driver under 500hp
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Offline TexasT

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Re: Used Forged Crank
« Reply #3 on: January 14 2021, 03:39:26 PM »
Not sure what it costs to ship one from California to Texas but for his asking of $345 shipped this one just doesn't really seem like what I need. Said he got it as part of a compensation and it had journals with trash had been run through so he had it machined .010/.010.

I guess I need to keep looking or maybe just pony up and get a new one. Would go into a 4.1 block I have that is already .040 over so it will require some custom pistons. But I am steady hunting a 109 block or an 84/85 hot air setup on the cheap. But I would like to have a forged crank in it either way I go. I do plan on e85 and plenty of boost. So I don't want to be come a member of the dotc club.
Rich

"Goals without actions are just dreams."