Melling M Select 10990 Chevy Small Block Big Block Style High Volume Oil Pump

Melling M Select Series Oil Pump For Small Block Chevrolet Engines. High volume performance upgrade for the M-99HV-S. Increase in volume of 25% over stock oil pump. The 10990 is a Big Block style oil pump made to fit the Small Block applications. The drive and idler shafts have been extended to allow for additional support in the cover. Additional support eliminates dynamic shaft deflection at increased RPM levels.

The cover is doweled to the pump housing to assure alignment of the shaft bores. The relief valve has a screw-in plug instead of a pin. The housing and cover are CNC machined and phosphate coated. An additional spring, the original stock replacement is supplied which will reduce bypass pressure if needed. Includes intermediate shaft with steel guide.

Uses 3/4 press in screen. Use The Compatibility Guide to Find Your Application. Or Message Us With Any Fitment Questions.

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