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Help with 427 block ID

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Old 03-21-2011, 11:38 PM
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ichyrowe
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Default Help with 427 block ID

3869942, pad stamp is TO1I0IHR 6D146049.
Old 03-22-2011, 12:11 AM
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knight37128
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1966 ---- IH ---- Chevrolet --- 427 ---- 390 ----- Mt

390 horse 427 from 1966

TO1I0IHR

T = Tonawanda
01 = January
10 = the day of the month ( 10th in this case)

IH = 390 horse 427 with a manual transmission

R = Rochester (the carb that came on it)

Obviously NOT from a corvette.
Old 03-22-2011, 09:49 AM
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ichyrowe
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Thanks. I thought it was a big car motor.
Old 03-22-2011, 11:13 AM
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JohnZ
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Out of a full-size car built at Doraville, Georgia.
Old 03-22-2011, 10:56 PM
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Avispa
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Just curious if it has 4 bolt main bearing caps like the '942 blocks used in L-72 1966 Corvettes and a bunch of COPO Camaros and Novas.
Old 03-23-2011, 08:50 AM
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ichyrowe
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Originally Posted by Avispa
Just curious if it has 4 bolt main bearing caps like the '942 blocks used in L-72 1966 Corvettes and a bunch of COPO Camaros and Novas.
Nope. Two bolt. Wish it was 4 bolt.

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