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CLAYMOR
New User
| Posts: 9
| Joined: 08/08
Posted: 08/29/08
08:10 PM
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HEY GUYS I HAVE A 67 MODEL 326 (HEAD #140)
I AM LOOKING AT A 400 FROM A 72 BONNEVILLE. THE HEAD ON THE 400 IS 7J2.
WILL MY 326 HEADS WORK ON THE 400.
ANY HELP WILL BE GREATLY GREATLY APPRECIATED.
PLEASE EMAIL ME AT jen7822@yahoo.com
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Posted: 08/31/08
01:34 PM
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Except for the compression ratio, the air flow is probably pretty much the same. A 9.2:1 326 head on a 400 yields around 10:1, which is generally considered too high for today's gasoline.
If it were my car, I'd keep the 7J2s on the 400. Better yet is get a set of 6X-4s for your 400.
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Posted: 08/31/08
02:44 PM
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The 62cc 326 heads will work on the 400 but unless you are going to use race fuel the 11:1 C.R. will be way to high for pump gas.
professional hi-performance engine builder
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CLAYMOR
New User
| Posts: 9
| Joined: 08/08
Posted: 08/31/08
08:48 PM
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thanks so much for the response and replies.
you both have been a big help.
once again thanks guys.
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