MELLING 10990 CHEV SB HI-VOL OIL PUMP +25% W/DRIVESHAFT EXTENDED SHAFTS

Performance upgrade for ML99HVS.
25% increase in volume over OE pump.
Uses 3/4” press in screen, must use ML12550 drive shaft.
Drive and idler shafts have been extended to allow for
additional support in the cover eliminating dynamic shaft deflection
at increased RPM levels. The cover is doweled to the pump housing to
assure alignment of the shaft bores.
Screw in plug retains relief valve spring instead of pin.
All bolts are self locking socket heads.
The housing and cover are CNC machined and
manganese phosphate coated.
Manufactured with pink spring installed for higher pressure.
To change pump to lower pressure use supplied spring.