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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Thanks guys! One more trip around the sun completed. Lots of blessings and things to be thankful for (like still being able to type this message!!) Here's to us "over 70 guys.." Glenn
HBD Glenn!!