Thread: Bb Chevy Heads?
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03-28-2005 10:00 PM #1
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Bb Chevy Heads?
Help, I need to find someone that can tell me the intake and exhaust valve sizes that are installed in the following heads.
casting # 3931063 closed chamber date code D11-9
casting # 3964290 closed chamber date code H20-9
The heads are virgin rebuildable as removed oval port. Are there any differences between these heads except for cast #'s and dates?????
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08-03-2005 08:48 PM #2
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Re: Bb Chevy Heads?
how do i tell what sizes my heads are?Originally posted by CHUBBY2
Help, I need to find someone that can tell me the intake and exhaust valve sizes that are installed in the following heads.
casting # 3931063 closed chamber date code D11-9
casting # 3964290 closed chamber date code H20-9
The heads are virgin rebuildable as removed oval port. Are there any differences between these heads except for cast #'s and dates?????
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08-03-2005 10:07 PM #3
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- Car Year, Make, Model: 71 corvette vert BB 6spd 2x4
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both # are same applacation. 396/402, 325/350 hp, 100.9cc, 206 intake/172 ex.
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