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Old 05-27-2003, 09:57 AM
bratpack bratpack is offline
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Default 340 Intake #'s

Anyone know if there are any specific numbers stamped on a 340 intake manifold to make sure it is a 340 manifold? I'm talking about oem factory manifolds.
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Old 05-27-2003, 03:10 PM
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RogerH RogerH is offline
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Year One casting number info page (click here)

They don't list casting numbers for manifolds, but this should help.
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Old 05-27-2003, 04:21 PM
jelsr jelsr is offline
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Yeah bratpack, the Chassis book has a list of what I assume to be NHRA acceptable casting #'s from '68 thru '73. May not be complete, and the extra digit on the '70 4bbl might be a typo.
'68-'69 4bbl cast iron 2531915
'70 6bbl aluminum 3418682
'70 4bbl cast iron 34628458
'71-'72 4bbl cast iron 3512100
'73 4bbl cast iron 3671918
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Old 05-28-2003, 10:13 AM
bratpack bratpack is offline
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Thanks, I should have looked in those books. I knew I could coun't on you guys though.
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Old 05-30-2003, 08:02 AM
bratpack bratpack is offline
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The numbers I have are 3462848. Sounds like the 70' 4bbl without the extra 5 that's possibly a typeo. Anyone have a 1970 340 4bbl manifold to confirm?
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