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



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1971 Dodge Demon GSS 340 Tri-power Air Cleaner. This assembly has been restored to an original period correct image. The base is in excellent condition and features the Holley carburetor flanges designed to work with the Mopar Six Pack/Six Barrel set-ups. The exterior features the correct "TRI-POWER" callout - a standard with Mr. Norms no nonsense approach towards providing high performance for the 71 340 Demons.  To complete the assembly, a modified filter and a pair of period correct wing nuts are included. The wrinkle paint is very nice - it features typical surface characteristics of the factory finish. Note that the inside of the top features casting flaws - very typical of the period aluminum substrates - this does not impact the rigidity or function of the top.The unit was refinished to the same standards as made by Segal Industries.


Mr. Norm Krause was a high performance Mopar dealer based in Chicago during the heyday of musclecars and continues that legacy today. Due to his insightfulness and determination, he created the 67 383 Darts/Barracudas. In 68, he upped the ante to create the 440 Darts/Barracudas - when Mopar finally realized they could do this without too much modification, they joined in as well. In 1971, he created the 340 Demon GSS using the (1970 AAR/TA)  Edelbrock 340 Aluminum intake and readily available Holley trio of 2 barrels. Since the hood profile for the A-body was very low, he creatively sourced the Tri-Power air cleaner assembly from Segal Industries in California (long since out of business). The combination of low cost, hood clearance, and tri-power ready made it a logical choice. The legend of the Demon GSS was born. He went on to continue his high performance approach by adding a Paxton Supercharger to the 72 Demon 340 GSS as well. 

This assembly presents well and will enhance your restoration. Best of all, it is a genuine and ultra-rare Mr. Norms part!

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

Many of our items are scarce and hard to find - especially in today's climate. As such, the old adage "here today, gone tomorrow" applies to this assembly. While we strive to maintain a diverse amount of inventory, we cannot predict if/when we will get another one.



This assembly is correct for the following 1971 340 high performance models:


Demon GSS

It will fit A/B/C/E-body cars ranging from 68-73 using the Mopar Six Pack/Six Barrel carburetors requiring lower hood clearance.




The assembly will fit factory 6 barrel carburetors (Holley). 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.



We ship with


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Typical shipping costs:

            US  $20-$28

            Canada / Hawaii / Alaska $40 +/-

            Scandinavia  $55 or less

            Australia  $75 or less