4 barrel air cleaner base diameter.

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Jan 19, 2025 | 11:59 AM

Cpmman

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Joined: Dec 2024

Posts: 26

4 barrel air cleaner base diameter.

Clean someone tell me the diameter and height of a 4 barrel air cleaner base for a 1972 Cutlass?

Or better yet does any one know the diameter and height of a W-31 air cleaner base?

Thanks!

Dec 21, 2025 | 09:25 PM

nj_cutlass72

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Joined: Jun 2011

Posts: 752

im suprised no one replied to this question, if I may add on, is the non OAI air cleaners same size for olds 455 and 350 - 4 barrel engines?

Dec 21, 2025 | 10:31 PM

Fun71

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Joined: Feb 2013

Posts: 15,310

From: Phoenix, AZ

I do not know the air cleaner mounting diameter off-hand, but it is the same for the QuadraJet carburetors on all engine sizes.

Last edited by Fun71; Dec 21, 2025 at 10:34 PM.

Dec 22, 2025 | 02:15 AM

joe_padavano

Old(s) Fart

Joined: Mar 2007

Posts: 50,539

From: Northern VA

I assume you are asking about the air cleaner housing diameter and not the diameter of the hole that fits over the carb.

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