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Melling 10990 High Volume Performance Oil Pump & Intermediate Shaft GM Small Block
- 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.
- Patent No. 5,810,571.
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