SKU: HLY112-17
UPC: 090127019009
MPN: 112-17
The Holley 0-4777-2 throttle body is a precision carburetor base plate engineered for serious engine builders and restoration enthusiasts who demand reliable fuel metering and responsive throttle control. This aluminum component serves as the foundation for Holley 4150 carburetor systems, providing a direct mechanical linkage between the driver's input and engine air-fuel delivery. Whether you're tuning a street machine, classic hot rod, or competition platform, this throttle body offers the mechanical simplicity and durability that experienced mechanics trust when calibrating engine performance.
Constructed from lightweight aluminum and finished in natural bare metal, the 0-4777-2 base plate integrates with Holley's time-proven 4150 carburetor platform to ensure consistent air velocity and fuel atomization across the intake manifold. The throttle body's direct mechanical design eliminates electronic complications, allowing you to dial in precise idle quality, throttle response, and transition characteristics without computer variables. At 2.2 pounds and compact 8.3 x 4.3 x 9.5-inch dimensions, this component is engineered for straightforward bolt-on installation, making it ideal for retrofit applications and custom carbureted fuel systems where analog control and tunability are paramount.
Carburetor enthusiasts and engine builders choose the Holley 0-4777-2 when restoring original equipment or upgrading intake manifold fuel metering on Gen I small-block Chevrolet, Ford, and Mopar platforms. The complete assembly eliminates guesswork during carb selection, ensuring proper bore size and linkage compatibility for your specific application. Installation requires minimal fabrication—the aluminum construction resists corrosion while maintaining OEM-style appearance, and the throttle body integrates seamlessly with stock or custom intake manifolds equipped for 4150 mounting. Order the Holley 0-4777-2 throttle body today to restore responsive driveability and tuning control to your carbureted engine build.
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