All Holley Marine Carburetors are designed to meet Coast Guard specifications. A marine carburetors fuel metering system is calibrated to compensate for unique engine loads found on boats. The J-style vent tubes direct fuel/fumes back into the carburetor for safe operation while on rough waters.
The Holley 0-80552 Marine carburetor is designed with a universal calibration good for marine engines where a spreadbore 4BBL is required
*** A carb spacer may be required to allow the fuel inlet on our marine 4175 to clear the water manifold (aka thermostat housing) on most Mercruiser and OMC GM V8 engines. We offer a 1″ spacer in the Mr. Gasket product line. Part Number is 3406.
Gold Dichromate finish for corrosion resistance and classic Holley looks
Universal Marine Calibration
Model 4175 Quadrajet replacement
Vacuum secondaries for use on wide variety of boats. Compensate for all weights to allow smooth opening of secondaries.
Factory preset electric choke for easy startups
30cc Accelerator pump for smooth starts
Single feed fuel inlet for easy installation
J-Style Vent Tubes
Meets Coast Guard Specifications
Power valve blow-out protection
100% wet-flow tested by Holley technicians to assure it arrives ready to run!