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



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1971-72 Chevrolet Chevelle/El Camino SS LS5 454 LS3 396 Cowl Induction Air Cleaner. This assembly has been refinished in the correct semi-gloss black finish to present a period correct image. The single snorkel with round end is in excellent condition and correct for the last of the LS-engined Cowl Induction platforms. The base is very clean and features a ridged bottom along with a GM licensed reproduction Air Cleaner Service Decal (DH=1972). Note that the snorkel is canted downward and is angled towards the corner of the passenger side fender (71-72 specific). It is also unique to these years as well, incorporating the ThermAC pre-heater function that was required for the new emissions of 71. The flame arrestor tube is clean and the flame arrestor screen features the original GM stamping. To complete the base, new white-striped vacuum hoses are connected to an original air temperature sensor with an OEM clip. An original style date stamp has been added to enhance the appearance. 

The reproduction cowl flange features a straight edge complete with a new seal and correct "rear" decal that enhances the classic musclecar appearance and sits atop the base. To complete the package, a period correct wing nut and new heavy duty air filter are included. 

To add further distinction, a choice of either a GM licensed 454/365HP or 396/300HP or 400/300HP Turbo-Jet decals are included (temporarily installed - permanent installation to be made by the buyer as required) and complements the overall assembly. Please add a note to seller with your choice at checkout. If no note is provided, the 396/300HP decal will be included.

This assembly is in excellent condition and will enhance your restoration; priced under market value since the original cowl flange was replaced with a reproduction piece (hard to tell, but mentioned for clarity).

The last picture is an actual representation of an LS5 Cowl Induction engine with this type of assembly installed.


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




This assembly is correct for the following:

1971-72 Chevrolet

454/365 & 396/300HP & 400/300HP Turbo-Jet models installed in Chevelle SS/El Camino SS cars 

Note: both automatic and 4 speed equipped cars featured the ThermAC valve on the top of the snorkel.




The assembly will fit factory 4 barrel Quadrajet carburetors with a 5 1/8" diameter flange, as well as Holley (factory), Carter, and Edelbrock variations without 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.