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#46 heads
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tom67bird
New User
| Posts: 41
| Joined: 06/09
Posted: 06/01/09
03:29 PM
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Hi, I have a pair of #46 heads on my 71 354 ci pontiac, the code on the upper pad above the #5 and #7 spark plug holes reads C 07 9. Are these 1969 400 heads? And is the chamber size too small for this engine? This forum rocks, I appreciate any help!
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Posted: 06/01/09
04:07 PM
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According to the date code you listed they are 1969 heads and have 72CC chambers and are not too small for the 350 engine.
professional hi-performance engine builder
Horsepower sells engines and torque wins races
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tom67bird
New User
| Posts: 41
| Joined: 06/09
Posted: 06/01/09
05:57 PM
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Thanks , Im trying to get this combo, along with a 9794234 intake and holley 3310 with blackjack headers runniung strong. Just dropped in an HEI with no Vac advance( wont clear) dont know what cam it has .
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Posted: 06/01/09
07:17 PM
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No problem.
The 750cfm carb. is most likely gonna be a little too big.
professional hi-performance engine builder
Horsepower sells engines and torque wins races
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