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Holley 4500 Drop Base Air Cleaner Assembly 120-4630

Holley 4500 Drop Base Air Cleaner Assembly 120-4630
Holley 4500 Drop Base Air Cleaner Assembly 120-4630Holley 4500 Drop Base Air Cleaner Assembly 120-4630Holley 4500 Drop Base Air Cleaner Assembly 120-4630
$280.99 ea
NEWARRIVING SOONEstimated Ship Date 04/06/2023 (If Ordered Today)32 available from HOLLEY PERFORMANCE PRODUCTS as of 03/22/2023
Model: 3991477
Supplier has not provided any fitment data for this product.
[More Info]
Holley is proud to offer a breath of fresh air with our new 16" drop-base 4500 air cleaner assemblies and filters. Available in chrome or EDP black. The assemblies are available with a red washable gauze element or a white pleated paper element to offer the look you have in mind. The tops are so large and smooth we decided to leave them plain for a nice stealth look, or to use as a canvas for creating your own look. They feature a 15/16" drop-base so hood clearance is gained above without creating clearance issues below.
  • Open Element Style
  • Fits 4500 Series Carbs/Throttle Bodies w/7.25 in. Neck
  • Drop Base
  • Stamped Steel Base And Lid
Holley Performance Emission Code 3: This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles. The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles: 1965 and older U.S. manufactured California Certified vehicles/1967 and older U.S. manufactured Federally Certified vehicles/1967 and older Foreign manufactured vehicle. The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle. The following vehicles are considered Emissions Controlled Vehicles: 1966 and newer U.S. manufactured California Certified vehicles/1968 and newer U.S. manufactured Federally Certified vehicles/1968 and newer Foreign manufactured vehicle
About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!


Download Name File Size



Base Style Drop
Base Type 0.9375 in. Drop
CARB/Air Horn Diameter 7.500 in.
Emission Code 3
Filter Diameter 16"
Filter Height 3.000 in.
Filter Style Red Washable
Filter Type Red Washable
Finish Black
Logo None
Material Steel
Part Type Air Cleaner Assembly
Shape Round
Size 16.000 in.


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Holley 4500 Drop Base Air Cleaner Assembly 120-4630:
Classic Nova 2023