Performance Carburetor 465CFM

The Holley Performance Carburetor 465 CFM Model 4160 is a four-barrel classic carburetor engineered for street and mild performance applications requiring precise fuel delivery and responsive throttle control. With a 465 cubic feet per minute flow rating and square bore design, this unit delivers reliable atomization and consistent air-fuel mixture across a broad RPM range. The electric choke and vacuum secondary system enable reliable cold starts and smooth power transitions without driver intervention.

Built with a single inlet configuration and finished in durable gold chromate coating that resists corrosion in high-heat engine compartment environments, this 4160-series carburetor weighs 9.15 lbs and integrates into standard intake manifolds. The 465 CFM specification positions this unit for engines in the 300–400 horsepower range operating at cruise and moderate boost conditions. Vacuum secondary operation automatically enriches the fuel mixture under load without aggressive primary-stage jetting, resulting in better part-throttle economy and reduced hesitation during acceleration.

This carburetor is suited for vintage muscle car restoration, street rod builds, and classic truck restorations where modern fuel injection is not desired or feasible. The Model 4160 platform has proven reliability across decades of use, making it the choice for builders and enthusiasts prioritizing straightforward tuning and parts availability. Holley 0-1848-2 carburetors are widely supported by restoration specialists and remain a benchmark for naturally aspirated classic engine performance.

The 465 CFM rating is a proven sweet spot for mid-sized displacement engines seeking balanced torque and top-end power without oversizing intake restrictions that plague oversized carburetors on street-driven vehicles. Holley's manufacturing standards ensure repeatable calibration and durability through full engine life cycles.