Restoring American Muscle Car and Classics - we help your engine breath easier!

1970 71 Buick GS 400 Ram Air Air Cleaner


This item is out of stock

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OEM 1970-71 Buick GS 400 / 455 Ram Air Air Cleaner Assembly in excellent condition. This assembly has been refinished to the original look of the 1970-71 cars featuring the four barrel Ram Air air cleaners. The base features a very clean interior, correct Air Temperature Sensor, Dual snorkel inlets featuring new white-striped vacuum lines, GM licensed air cleaner service decal (BC=70), and a new breather filter. 

A new chrome lid augments the assembly, adding more appeal under your hood! The assembly is completed by adding a heavy duty air filter and period correct chrome wing nut. 

The Ram Air fiberglass adapter piece is in overall excellent condition as well. The bottom cups are complete and intact with virtually no wear.  One of the rear corners was repaired and is structurally sound - very little is evident once installed. As an exceptionally nice value, an NOS GM Buick GS 400 embossed (raised) decal has been installed on the Ram Air adapter, adding a nice touch of authenticity. To complement the entire assembly, a mid-year production 1970 date code has been added. New correct 400 foams are installed via the factory methodology as well, ensuring fresh air is channeled from the hood adapters in through the Ram Air assembly.

This assembly is in excellent condition and will enhance your restoration. Best of all, it is a rare and Genuine GM part! 

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


This assembly is correct for the following:

1970-71 Buick

Regal Gran Sport/GS with the 400 / 455 engine 

Note: this will also fit the 69 models - reversal of the valve covers will be required to accommodate the air breather filter location correctly. 72 models featured a triangulated driver's side cup to allow for the air pump - a visual and functional difference.


This assembly will fit factory 4 barrel carburetors with the 5 1/8" flange (Quadrajet). 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 and tracking information provided


This assembly is guaranteed to match the item description - customers have up to 14 days from the date of delivery to return the assembly 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 Muscle Car Air Cleaners can initiate a shipping damage claim.


We Ship With

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Estimated shipping costs:

US $15-30

Canada / Hawaii / Alaska $45 +/-

Europe/Scandinavia $65 

Australia $95 or less