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Old 12-30-2012, 09:14 AM
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327 small block

I have a 327 engine with casting #3782870. I know its a 327 with horsepower range from 250 to 375. I can't find anything on the suffix code. It came out of a 62 Chevy truck. Don't know if it was original motor. Code on front left pad is FII07U. I got the motor with the heads missing. Any info would be greatly appreciated.

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Old 12-30-2012, 09:49 AM
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Look for casting numbers on the rear pad above the flywheel
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Old 12-30-2012, 10:25 AM
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327 small block

Could the numbers possibly be F1107U? Then it could be identified as F= Flint, month = 11, day = 07, U= ? Small block casting date is located on driver side rear of block on flange forward of bellhousing.
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Old 12-30-2012, 01:57 PM
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I don't see any 327 blocks beginning with "U". Here's the whole list....
Decoding small block Chevy engine suffix codes and stamped numbers TXC - UTT
Maybe you could use a bronze toothbrush to clean up the suffix and find more letters....
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Old 12-30-2012, 02:13 PM
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Yeah that's what I couldn't find. Anything on the letter U. And yes the stamp is F1107U. With nothing else with it.
On the right rear is a stamp of K62 by the distributor hole on the back of block. Then of course the casting # on the left rear is 3782870. Thank everyone for the info.
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Old 12-30-2012, 06:26 PM
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U 62 327 Truck 185 408 Manual 2-Brl
U 63 327 Truck 185 Base Manual 2-Brl
U 64 327 Truck 185 Base Manual 2-Brl

3782870 327 62-67 250-375 car & Truck 2-bolt
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