Holley's new 0-4776SA is constructed from aluminum which compared to its zinc counterpart. Holley's aluminum 0-4776SA will hold its shine longer and also can be hand polished for a custom look!

Holley Double Pumper® carburetors are a perfect performance upgrade for hot street cars and race vehicles. Double Pumper carburetors are an American icon when it comes to performance carburetors. From their roots as the premier carburetor on many factory muscle cars to powering thousands of vehicles across the finish line, the Double Pumper is a great choice whether you are burning up the street or the quarter mile.


Aluminum Design for 38% weight savings

Improved Fuel Bowl Design

Tumble polished Shiny finish for good looks

Optimized street/strip calibration that works out-of-the-box

Manual choke (Cable driven, hand operated) for precise cold start control

Mechanical secondaries for awesome tire turning performance

Dual accelerator pumps for additional fuel under initial acceleration

Dual feed fuel inlets for constant high volume fuel delivery

Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing

100% wet-flow tested by Holley technicians to assure it arrives ready to run!

Barrels 4

Booster Straight

Brand Holley

CFM 600

Choke Manual

Condition New

Emission Code 3

Finish Shiny

Fuel Gasoline

Fuel Inlet Dual

Marine Use No

Material Aluminum

Model 4150

Primary Main Jet 66

Primary Power Valve 6.5

Primary Pump Nozzle Size 28

Product Type 4150 Model Carburetor

Secondaries Mechanical

Secondary Main Jet 73

Secondary Pump Nozzle Size 31

Supercharged Application No

Throttle Bore 1.563 inch

Vacuum Ports 1 timed (spark) port, 1 full, and 1 PCV port

More Information
Part Type Carburettors
Product Line Air & Fuel Delivery
Brand Holley
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