Dry Sump External Oil Pumps > Products Multi Stage Pumps - DRY Dry sump oiling system technology today has evolved into one of the key factors instrumental in the engine builders quest for horsepower. Beyond the properly configured dry sump systems ability to produce significant horsepower gains within itself through crankcase pressure control and proportionately supplied oil volume and pressure, the dry sump system today serves as a base line from which further engine development may and has moved ahead. Obviously, as the heart of the system, the Dry Sump Pump by design, must meet and match the many application variations of oil delivery and suction. The pumps listed below further emphasize the method of matching section/gear area per application and type of usage. Part No. Application Configuration 6432 SBC/90° V6 3 Stage/Drag Race 2-1.700" Scavenge/1.200" Press. 6435 SBC/90° V6 4 Stage/Drag Race 1.450 & 1.700" Scavenge/1.200" Press. 6451 BBC 3 Stage/Drag Race 1.450" & 1.700" Scavenge/1.450" Press. 6455 BBC 4 Stage/Drag Race 1.450" & 1.700" Scavenge/1.450" Press. 6456 BBC 5 Stage/Drag Race 4-1.700” Scavenge/1.700” Press. 6475 BB Ford 3 Stage/Drag Race 2-1.700” Scavenge/1.700” Press. 6478 429 Ford 4 Stage/Drag Race 3-1.700" Scavenge/1.700" Press. 6480 426 Hemi 3 Stage/Drag Race 2-1.700" Scavenge/1.700" Press. 6482 426 Hemi 4 Stage/Drag Race 3-1.700" Scavenge/1.700" Press. 6505 SBC/90° V6 3 Stage/Circle Track 2-1.200" Scavenge/1.200" Press. 6510 SBC/90° V6 4 Stage/Circle Track 3-1.200" Scavenge/1.200" Press. 6511 SBC/90° V6 5 Stage/Circle Track 4-1.200" Scavenge/1.200" Press. 6525 BBC 3 Stage/Circle Track 2-1.450" Scavenge/1.450" Press. 6530 BBC 4 Stage/Circle Track 3-1.450" Scavenge/1.450" Press.