55-94 350 Chevy Oil Pump

The Melling 55-94 350 Chevy Oil Pump (model M-55HV) is a high-volume, high-pressure wet sump pump specifically engineered for small-block Chevrolet 350 applications from 1955 through 1994. This internal gear pump is designed to deliver consistent oil delivery under demanding engine conditions, making it an excellent choice for street performance, racing, and restored classic muscle cars that require reliable lubrication at elevated RPMs.

The pump features a 5/8-inch inlet designed for standard small-block Chevy oil pan pickup tubes. Its high-volume and high-pressure design maintains adequate PSI across the entire rev range, which is critical for engines modified with aggressive cam profiles, roller lifters, or higher compression ratios. The internal gear design minimizes wear on the pump shaft and housing, extending service life in both street and competition environments.

This pump is essential for builders upgrading induction, ignition, or fuel systems on classic 350 small-block engines. Any modification that increases power output or engine speed demands a corresponding increase in oil delivery, and the Melling M-55HV effectively bridges that gap, preventing inadequate lubrication that can lead to bearing wear and premature engine failure.