Big Block Chevy 396 454 502 Engines High Volume Oil Pump Melling M Select 10778

Melling M Select Series Oil Pump. Fits Big Block Chevrolet 366 396 402 427 454 502 Engines From 1965 To Current. Use The Compatibility Guide To Verify Your Application.

High volume performance upgrade for the 10770. Increase in volume of 25% over stock oil pump. The drive shaft has been manufactured from chrome-moly steel.

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.

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