Description
MELLING 55-94 350 Chevy Oil Pump M-55HV Oil Pump - Wet Sump - Internal - High Volume - High Pressure - 5/8 in Inlet - Small Block Chevy - Each THE MANUFACTURER DOES NOT RECOMMEND THE USE OF THIS OIL PUMP IN A HIGH PERFORMANCE OR RACING ENGINES. DUE TO THE STRUCTURAL CHANGES THAT HAVE BEEN MADE TO THE M55HV PUMP BODY, MELLING RECOMMENDS TO USE MEL10550ST WHICH IS DESIGNED FOR HIGH PERFORMANCE AND RACING ENGINES.THE 10550ST FEATURES HARDENED STEEL PINNED GEARS, BLACK MAGANESSE PHOSPHATE COATING, PUMP USES 5/8 DIA. PRESS IN SCREEN ASSY. INCLUDES HD DRIVE SHAFT WITH STEEL SLEEVE AND AN EXTRA SPRING FOR LOW PRESSURE.