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What crankshaft is this?

Old 06-06-2020, 08:33 PM
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Default What crankshaft is this?

What crank is this? Out of a 572

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Old 06-08-2020, 06:06 AM
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Are there any numbers on the front counterweight ?
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Old 06-08-2020, 07:05 PM
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That is on the front counterweight. Some hand stamped numbers 2nd from rear




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Old 06-08-2020, 08:11 PM
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If the crankshaft was standing straight up on the floor and you looked down on it are there any numbers on the front of the front counterweight ? That is where most manufacturers put their numbers. The number stamped on the edge of the counterweight is probably a balance job number or an engine builders job number. Looks like it has had some holes welded up for balancing.
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Old 06-09-2020, 11:00 AM
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The 8x89 was the only numbers i found i wll look again this weekend when i go to my shop. Thanks
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Old 06-17-2020, 09:22 AM
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Checked again those are the only numbers on it
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Old 06-17-2020, 09:51 AM
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Ok,
The forging sort of looks like the GM ones but hard to tell. Also in your one picture it looks like maybe the rod journal has been welded up ? Looked like a pit mark. I wonder if it is something that someone welded up to make a stroker cranks years ago ? I can't post pictures to show what I am talking about, guess you have to be a paying member. If you send me a PM with your e-mail I can e-mail you what I am looking at.
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Old 06-17-2020, 10:21 AM
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looks like 2 holes were pluged on the counter weight....what was the bore of the 572 ?

Last edited by F-2 Speedy; 06-17-2020 at 10:24 AM.
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