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#1
06-24-2026, 10:24 AM
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ID center carb
I have a 2bbl Rochester carb that I have had for many years. Unsure of what year (s) it's correct for. Bowl is 7031576, AH 7031537, TB 31692. Thanks for your help in IDing this carb...........
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#2
06-24-2026, 01:31 PM
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correction: bowl is a 7031575
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#3
06-24-2026, 03:05 PM
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The bowl is for a 1966 center carb manual tranny.
Don't know the other numbers? Jon may know. 
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! W.E.C moment "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#4
06-24-2026, 03:19 PM
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Thanks Johntal, PY used to have an online parts lookup site, doesn't seem to exist anymore?
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#5
06-24-2026, 03:27 PM
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Center carburetor (S/T – 389/421) 7026075.
Airhorn casting 7031587, bowl casting 7031575, throttle body casting 31892. HTH |
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#6
06-24-2026, 04:48 PM
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Thanks to you HTH, those are the #'s, my eyes aren't so good anymore!
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#7
06-29-2026, 02:23 PM
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Your center carb is the most difficult to locate, dur to it being used only on 1966 Tri-Powers. I believe Oldsmobile used the same casting number, but was machined for ported distributor vacuum.
__________________
BONESTOCK GOATS '64 GTO Tripower Hardtop (Wife's Car) '64 GTO Tripower Post Coupe (My Car) '99 Bonneville SE Sedan |
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