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  #1  
Old 01-11-2005, 10:57 AM
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70Barracuda 70Barracuda is offline
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Default 340-318 crankshaft serial numbers?

Hello,
Anyone have the correct serial #s for 318 340 forged cranks? I am going to a swap meet this weekwnd and I need a crank!

Thanks
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Old 01-11-2005, 04:32 PM
John Kunkel John Kunkel is offline
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I'll assume you want the casting or forging numbers since cranks don't have serial numbers. Here are the small block numbers:


62-67 318 and 64-67 273 forged 2128278, 2128869, 2205700

68-69 273 cast 2658268, 2658393

67-73 318 cast 2658278, 2658393

74-86 318 cast 2658278, 2658393, 3462387
2658391

68-72 340 forged 2532457, 2843868

73 340 cast 3462387

71-86 360 cast 3418640, 3418641, 3418642
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Last edited by John Kunkel : 01-12-2005 at 04:59 PM.
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  #3  
Old 01-11-2005, 08:27 PM
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70Barracuda 70Barracuda is offline
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Thanks John, I thought some early 318s had a forged crank too?
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Old 01-12-2005, 04:59 PM
John Kunkel John Kunkel is offline
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The '62-'67 forged 318 crank has the same forging number as the '64-'67 273, the difference is in the way the rear crank flange is machined.
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Old 01-13-2005, 07:46 PM
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What is 2668393?
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Old 01-13-2005, 09:10 PM
Steve Barracuda Steve Barracuda is offline
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FWIW , A friend just got a steel crank from Auto Zone for $185.00 + $85.00 core charge . It looked pretty decent , was ground and polished .010 and was dead on at .002 clearance. forging # showed it to be a 273 crank but you could gert lucky and get a 340 crank . If you don't like what you get you can get a full refund.
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Old 01-14-2005, 06:09 PM
John Kunkel John Kunkel is offline
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Quote:
Originally Posted by 70Barracuda
What is 2668393?
It's probably 26(5)8393, lot's of digits tend to look the same in mass produced cast/forged parts.
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