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Cast Iron Oil Pumps
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GM Small Block Performance Pumps
10550

- High volume performance upgrade for M-55HV.
- 25% increase in volume over stock oil pump.
- The 10550 housing and cover are CNC machined and phosphate coated.
- The lower pressure spring is included to reduce pressure if desired.
- Includes intermediate shaft with steel guide.
- Uses 5/8” press in screen.
10551

- High volume performance upgrade for M155HV.
- 25% increase in volume over stock oil pump.
- The 10551 housing and cover are CNC machined and phosphate coated.
- The lower pressure spring is included to reduce pressure if desired.
10552

- High volume performance oil pump.
- 10% increase in volume over stock oil pump.
- The 10552 is manufactured with the drive and idler shafts 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.
- Relief hole in cover uses screw in plug instead of pressed cup plug.
- All bolts are self locking socket heads, with the wrench supplied.
- The housing and cover are CNC machined and phosphate coated.
- Includes intermediate shaft with steel guide.
- Uses both 3/4” bolt on or press in screen.
- The lower pressure spring is included to reduce pressure if desired.
- Patent No. 5,810,571.
10552C (Anti-Cavitation)

- High volume performance oil pump.
- 10% increase in volume over stock oil pump.
- Same as the 10552 with the addition of grooves machined in the body and cover. The grooves reduce cavitation effects in high RPM applications.
- Includes intermediate shaft with steel guide.
- Uses both 3/4” bolt on or press in screen.
- Using this oil pump will reduce pressure at
idle. - The 10552C uses the high pressure spring only.
- Racing Applications Only.
- Patent No. 5,810,571.
10553

- High pressure performance upgrade for M-55 & M-55A.
- Standard volume oil pump.
- The 10553 housing and cover are CNC machined and phosphate coated.
- Manufactured with pink spring installed for higher pressure (M-55A).
- To change pump to lower pressure (M-55) install the supplied yellow spring.
- Includes intermediate shaft with steel guide.
- The 10553 uses a 5/8” press in screen.
10554

- Performance upgrade for M155. Standard volume oil pump.
- The 10554 housing and cover are CNC machined and manganese phosphate coated.
- Manufactured with pink spring installed for higher pressure.
- To change pump to lower pressure install the supplied yellow spring.
- Includes intermediate shaft with steel guide.
- The 10554 uses a 3/4” press in screen.
10555

- High Volume performance upgrade for the 10550 oil pump.
- 25% increase in volume over stock oil pump.
- The 10555 is manufactured with the drive and idler shafts 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.
- Relief hole in cover uses screw in plug instead of pressed cup plug.
- All bolts are self locking socket heads, with the wrench supplied.
- The housing and cover are CNC machined and manganese phosphate coated.
- Includes intermediate shaft with steel guide.
- Uses both 3/4” bolt on or press in screen.
- The lower pressure spring is included to reduce pressure if desired.
- Patent No. 5,810,571
10555C (Anti-Cavitation)

- High volume performance upgrade for the 10550 oil pump.
- 25% increase in volume over stock oil pump.
- Same as the 10555 with the addition of grooves machined in the body and cover. The grooves reduce cavitation effects in high RPM applications.
- Includes intermediate shaft with steel guide.
- Uses both 3/4” bolt on or press in screen.
- Using this oil pump will reduce pressure at idle.
- The 10555C uses the high pressure spring only.
- Racing Applications Only.
- Patent No. 5,810,571
10990

- 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.
10990C (Anti-Cavitation)

- High volume performance upgrade for the M-99HV-S.
- Increase in volume of 25% over stock oil pump.
- The same as the 10990 except with the addition of grooves machined in the housing and cover. The grooves reduce cavitation effects in high RPM applications.
- Using this oil pump will reduce pressure at idle.
- Includes intermediate shaft with steel guide.
Uses 3/4” press in screen. - Racing applications only.
- Patent No. 5,810,571.
GM Big Block Performance Pumps
10770

- High volume performance upgrade for M-77HV.
- 25% increase in volume over stock pump.
- The housing and cover are CNC machined and phosphate coated.
- The lower pressure spring is included to reduce pressure if desired.
- Includes intermediate shaft with steel guide.
- Uses 3/4” press in screen.
10774

- Standard volume performance upgrade for M-77.
- The housing and cover are CNC machined and phosphate coated.
- The lower pressure spring is included to reduce pressure if desired.
- Includes intermediate shaft with steel guide.
- Uses 3/4” press in screen.
10778

- 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.
- Patent No. 5,810,571.
10778C (Anti-Cavitation)

- High volume performance upgrade for the 10770.
- Increase in volume of 25% over stock oil pump.
- The same as the 10778 except with the addition of grooves machined in the housing and cover. The grooves reduce cavitation effects in high RPM applications.
- Using this oil pump will reduce pressure at idle.
- Includes intermediate shaft with steel guide.
- Uses 3/4” press in screen.
- Racing applications only.
- Patent No. 5,810,571
Chrysler Performance Pumps
M-63HV

- High volume upgrade of the M-63.
- 25% increased volume over stock pump.
- Larger volume body and gerotor set provide higher volume than the original stock oil pump.
M-63HP

- High pressure, standard volume upgrade of the M-63.
- Increased oil pressure.
- Provides higher oil pressure than the stock oil pump.
M-72HV

- High volume upgrade of the M-72.
- 25% increased volume over stock pump.
- Larger volume body and gerotor set provide higher volume than the original stock oil pump.
Ford S.B. Performance Oil Pumps
10687

- Stock volume performance upgrade for M-68.
- Gerotor set assembled to an extended drive shaft that allows for additional support in the cover. Supporting the drive shaft in both the housing and cover eliminates dynamic shaft deflection at increased RPM levels.
- The cover is doweled to the pump housing to assure alignment of shaft bores.
- The housing and cover are CNC machined and phosphate coated for wear and rust prevention.
- The relief valve has a pressure adjustable screw-in plug instead of a cup plug.
- Works with the original bolt-on pickup screen assemblies.
- Uses 5/8” bolt on screen.
- High volume performance upgrade for M-68-HV.
- Uses 5/8” bolt on screen.
10688

- High volume upgrade for M-68.
- 25% increased volume over stock pump.
- Larger volume body and gerotor provide higher volume than the original stock oil pump.
- Uses 5/8” bolt on screen.
Ford B.B. Performance Oil Pumps
M-57HV

- High Volume upgrade for M-57.
- 25% increased volume over stock pump.
- Larger volume body and gerotor provide higher volume than the original stock oil pump.
- Uses 5/8” bolt on screen.
M-57HP

- High pressure upgrade for M-57.
- Provides higher pressure than the original stock oil pump.
- Uses 5/8”
- NOTE: for use in blocks with by-pass spring in the block.
M-83HV

- High volume upgrade for M-83.
- 25% increased volume over stock pump.
- Larger volume body and gerotor provide higher volume than the original stock oil pump.
- Uses 5/8” bolt on screen.
M-84AHV

- High volume upgrade for M-84A.
- 25% increased volume over stock pump.
- Larger volume body and gerotor provide higher volume than the original stock oil pump.
- Uses 5/8” threaded screen.
10832

- Stock volume performance upgrade for M-83.
- Gerotor set assembled to an extended drive shaft that allows for additional support in the cover. Supporting the drive shaft in both the housing and cover eliminates dynamic shaft deflection at increased RPM levels.
- The cover is doweled to the pump housing to assure alignment of shaft bores.
- The housing and cover are CNC machined and phosphate coated for wear and rust prevention.
- The relief valve has a pressure adjustable screw-in plug instead of a cup plug.
- Works with the original 5/8” bolt-on pickup
screen assemblies.
10833

- High volume performance upgrade for M-83.
- The same features as the 10832 but the gerotor displaces 25% more volume of oil than the 10832.
- Uses 5/8” bolt on screen.
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