We Keep the American Classic and Muscle Car Breathing Right!


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OEM 1970 Pontiac GTO The Judge Firebird Gran Prix 400 Dual Snorkel Air Cleaner. The assembly has been refinished in mid-gloss black to present a period correct image. The base features the dual oval snorkels in good condition with functional ThermAC vacuum valves, breather filter, new white-striped and original black vacuum lines, correct air temperature sensor, and a new heavy duty air filter. An original style date stamp has been added as a further measure of originality. The exterior features a heavy duty air cleaner service decal. The base features the correct drop and the 5 1/8" carburetor flange designed to work with factory Rochester Quadrajets. This is a one-year only design based on the new for 70 snorkels and omission of the carburetor vent hole.

A new triple plated chrome lid with seal adds to the engine compartment, while a new Pontiac 400-4 decal (loosely installed-an option that has been created only for the aftermarket and never available when new) enhances the image. To complete the package, a period correct wing nut & new filter breather with GM stamped adapter are included.  

This assembly presents well and will enhance your restoration. Best of all, it is a genuine GM part!

For further information on the restoration process, please contact us.




This assembly is correct for the following 1970 models:


GTO/The Judge with 400-4 / 455-4 Pontiac Non-HO/Ram Air Engines

Grand Prix 400 

*Firebird 400 (69 only)

LeMans Sport 400 

1971-72 - while this assembly will fit many of these models, the primary difference is in the design featuring the lack of carburetor vent tube. 

*It will also fit 68-69 400s, but is not correct for these year models. 

This assembly will not fit the 70-72 Pontiac F-body (Firebird / Formula / Trans Am) due to the shallower drop; F-bodies required a deep drop center and angled flange for proper hood clearance.


The assembly will fit factory 4 barrel Quadrajet carburetors with a 5 1/8" diameter flange, as well as most Holley (it will NOT fit double pumpers; i.e. models 4150/4160), Carter/Edelbrock variations without an electric choke (some adjustment to the carburetor alignment tangs may be required). If you have modified your carburetor or intake manifold, please inquire first prior to bidding to ensure fitment is correct. Return requests for non-fitment will not be honored.





The assembly will ship within one day (usually the day of payment) with shipping/tracking information provided.



This assembly is guaranteed to match the item description – customers have up to 14 days to return the assembly after receipt if it is not as described.



Assemblies must be returned in the original packing – customers are responsible for return shipping charges. A refund will be issued upon receipt of the inspected assembly. Returns for non-fitment will not be honored – please ask questions first.



In the event of shipping damage, customers must save all packaging and send 5 digital pictures so Musclecar Air Cleaners can initiate a shipping damage claim.



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