A higher pressure bypass spring in an oil pump forces more oil through the engine while a lower pressure spring allows for more oil to be recycled within the pump. This spring allows you to replace your stock standard pressure spring with one of a higher pressure. The spring rasies the oil pumps bypass pressure to 40-65 PSI.

A higher pressure bypass spring in an oil pump forces more oil through the engine while a lower pressure spring allows for more oil to be recycled within the pump. This spring allows you to replace your stock standard pressure spring with one of a higher pressure. The spring rasies the oil pumps bypass pressure to 50-75 PSI.

This Oil Pump Mounting Stud can be permanently secured in the main cap then the pump can be repeatedly replaced without fear of damage to main cap threads. Made from Chromoly steel. This stud comes with a locking nut, washer and has a socket head for easy installation.

Our SBC Oil Pump Drive Shaft is made from high grade steel and is designed to replace the stock shaft. This unit features a pinned steel sleeve to maintain correct alignment and is far superior to the brittle plastic sleeve on the stock shaft.

This BBC Oil Pump Drive Shaft is made from high grade steel and is designed to replace the stock shaft. This unit features a pinned steel sleeve to maintain correct alignment and is far superior to the brittle plastic sleeve on the stock shaft.

This SBC with BBC (5 bolt) oil pump conversion Oil Pump Drive Shaft is made from high grade steel and is designed to replace the stock shaft. This unit features a pinned steel sleeve to maintain correct alignment and is far superior to the brittle plastic sleeve on the stock shaft.

This SBC standard volume pressure balanced oil pump has been modified to provide a smooth continuous flow of oil through the full RPM range. By reworking the pump housing and providing feeder grooves, we bleed some of the high pressure back into the gears providing smoother operation and more constant pressure. This allows for the high RPM operation on a race engine and limits oil pump cavitation. Since it is designed for smooth operation at high RPM’s, the idling oil pressure can be up to 10 lbs lower than that of a standard oil pump.

*High volume performance upgrade for M-155HV *25% increase in volume over standard *Uses ¾” Press in Pickup Screen *Housing and cover are CNC machined and phosphate coated *Includes lower pressure spring to be used if lower pressure is desired, and intermediate shaft

This SBC high volume pressure balanced oil pump has been modified to provide a smooth continuous flow of oil through the full RPM range. By reworking the pump housing and providing feeder grooves, we bleed some of the high pressure back into the gears providing smoother operation and more constant pressure. This allows for the high RPM operation on a race engine and limits oil pump cavitation. Since it is designed for smooth operation at high RPM’s, the idling oil pressure can be up to 10 lbs lower than that of a standard oil pump.

*Standard volume Hi Pressure performance upgrade for M-55 & M-55A *Standard Volume *Uses 5/8” Press in Pickup Screen *Housing and cover are CNC machined and phosphate coated *Includes lower pressure spring to be used if lower pressure is desired, and intermediate shaft

*Standard volume Hi Pressure performance upgrade for M-155 *Standard Volume *Uses 3/4” Press in Pickup Screen *Housing and cover are CNC machined and phosphate coated *Includes lower pressure spring to be used if lower pressure is desired, and intermediate shaft

*High volume performance upgrade *10% increase in volume over standard *Uses ¾” Press in Pickup Screen or bolt on style *Housing and cover are CNC machined and phosphate coated *Includes lower pressure spring to be used if lower pressure is desired, and intermediate shaft *Drive and idler shafts extended into cover to allow for additional support *Screw in plug retains relief valve spring instead of pin *All bolts are self locking socket heads and cover is doweled to pump for proper alignment

SBC High Performance (+25% vol.) 3/4" Inlet.

*Anti-Cavitation version of the M10552 *Same as the 10552 with the addition of grooves machined in the body and cover. The grooves reduce cavitation effects in high RPM applications *Using this oil pump will reduce pressure at idle

*Anti-Cavitation version of the M10555 *Same as the 10555 with the addition of grooves machined in the body and cover. The grooves reduce cavitation effects in high RPM applications. *Using this oil pump will reduce pressure at idle

This SBC high volume 3/4" inlet pressure balanced oil pump has been modified to provide a smooth continuous flow of oil through the full RPM range. By reworking the pump housing and providing feeder grooves, we bleed some of the high pressure back into the gears providing smoother operation and more constant pressure. This allows for the high RPM operation on a race engine and limits oil pump cavitation. Since it is designed for smooth operation at high RPM’s, the idling oil pressure can be up to 10 lbs lower than that of a standard oil pump.

This BBC high volume pressure balanced oil pump has been modified to provide a smooth continuous flow of oil through the full RPM range. By reworking the pump housing and providing feeder grooves, we bleed some of the high pressure back into the gears providing smoother operation and more constant pressure. This allows for the high RPM operation on a race engine and limits oil pump cavitation. Since it is designed for smooth operation at high RPM’s, the idling oil pressure can be up to 10 lbs lower than that of a standard oil pump.