M340HV High Volume Oil Pump for Ford 4.6L & 5.4L V8 engines 

Melling has added this oil pump that addresses oiling issues frequently found in Ford 4.6L and 5.4L 3-valve engines. The M340HV high volume oil pump provides 20% additional oil flow to assist in increasing the engine's oil pressure by filling the additional clearances created by wear. As a result the pumps exceed original equipment manufacturers specifications to meet the demanding lubrication needs of those engines. 

The pumps have been designed by Melling engineering as drop-in replacements to the original equipment oil pumps. No modifications to the engine, pickup tube assembly or other components are required. All the features that make our stock replacement M340 oil pumps perform so well have been utilized in the new high volume pumps this includes the coated cast iron cover plates. 

The M340HV is a 20% higher volume version of the M340 stock replacement oil pump. 

Every pump is performance tested after it is machined, cleaned, and assembled at Mellings Jackson, MI facility. Melling is global supplier of engine parts and is ISO/TS 16949 and ISO 14001 certified.