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Casting # information please

Old Sep 28, 2008 | 12:46 AM
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Default Casting # information please

Block casting # 3904351 and heads casting # 3904391. Are these pieces anything special? Thanks in advance for any information.
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Old Sep 28, 2008 | 02:35 AM
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most likely 67 427 with same for heads, what do you want for them and what are the casting dates on them
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Old Sep 28, 2008 | 08:56 AM
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3904351 1967 corvette 427 390hp & 400hp 2 bolt
1967 corvette 427 430hp & 435hp 4 bolt

3904391 1967 corvette 427 435hp

Originally Posted by 1Fordman
Block casting # 3904351 and heads casting # 3904391. Are these pieces anything special? Thanks in advance for any information.
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Old Sep 28, 2008 | 10:27 AM
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http://www.mortec.com/castnum.htm
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Old Sep 28, 2008 | 11:41 AM
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Thanks for the information. Looks like the pan neds to come off to count main cap bolts to see if it's a 2 or 4 bolt main engine.
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