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Serpentine Pulleys

Clear Powder Coated

Standard Rotation Long and Short Water Pump

Replace your old V-Belt pulleys for modern No-Slip operation

 

Performance Ratios

Our performance serpentine pulley sets replace your Low performance V-belts and eliminate belt throwing while retaining your standard rotation water pump. Increases horsepower by reducing accessory drag. 12-15 h.p. at rear wheels typical. Precision CNC machined to run perfectly true. 6061-T6 aluminum for extra strength and wear.

Mid-Performance Ratios

Uses performance crank pulley and high water flow water pump pulley.

High Water Flow Ratios

Increases cooling by speeding up water flow and fan speed. This helps at critical low speed driving where most overheating occurs.


shown with optional alternator fan 221


*Individual Pulleys available on Pulley Kit pages


Long Water PumpChevy Big Block Long Water Pump

Long Water Pump Performance Ratios:

 Set  

Crank pulley

W/P pulley

Alt. pulley with nose cover

P/S Keyway pulley

P/S Press Fit pulley

Alt. belt size with March Bracket : 20125

P/S belt size with March Bracket : 20150

 7210 

 YES (Single)

 YES

 YES

 

 

 42.5"

 

7630

 YES (Double)

 YES

 YES

 Optional :  616

Optional :  617   

 42.5"

 38"

Long Water Pump Mid-Performance Ratios:

7635

 YES (Single)

 YES

 YES

 

 

 42.5"

 

7640

 YES (Double)

 YES

 YES

 Optional :  616

Optional :  617   

 42.5"

 38"

Long Water Pump High Water Flow Ratios:

7310

 YES (Single)

 YES

 YES

 

 

 44.5"

 

7330

 YES (Double)

 YES

 YES

Optional : 623  

 Optional : 624  

 44.5"

 39"

Optional long water pump pulley nose cover : 314

NOTE FOR LONG WATER PUMP ENGINES: If you do not have a P/S pump we recommend ordering 616 (5 RIB ) or 623 (6 RIB) and a 1971-1974 Chevy Impala V8 keyed P/S pump P300P304, or 9600

 

Short Water PumpChevy Big Block Short Water Pump

Short Water Pump Performance Ratios:

 Set

Crank pulley

W/P pulley

Alt. pulley with nose cover

Optional W/P nose cover

Optional Alt. fan

7610

YES

YES

YES

Optional : 312

Optional : 221

Short Water Pump High Water Flow Ratios:

 7670 

YES

YES

YES

Optional : 312

Optional : 221

 

Detailed Information of Set Components and Size

  7210 Set Drives: W/P, Alt.,

  7211 6-Rib Crank Pulley 5-3/4" dia.

  6312 6-Rib W/P Pulley 6-1/4" dia.

  208   6-Rib Alt. Pulley w/Cover 2-3/4" dia.

 

  7630 Set Drives: W/P, Alt., and P.S.

  7231 6&5-Rib Crank Pulley 5-3/4" dia.

  6312 6-Rib W/P Pulley 6-1/4" dia.

  208   6-Rib Alt. Pulley w/Cover 2-3/4" dia.

 

  7635 Set Drives: W/P, Alt.,

  7211 6-Rib Crank Pulley 5-3/4" dia.

  6322 6-Rib W/P Pulley 5-1/4" dia.

  208   6-Rib Alt. Pulley w/Cover 2-3/4" dia.

 

  7640 Set Drives: W/P, Alt., and P.S.

  7231 6&5-Rib Crank Pulley 5-3/4" dia.

  6322 6-Rib W/P Pulley 5-1/4" dia.

  208  6-Rib Alt. Pulley w/Cover 2-3/4" dia.

  7630 and 7640 Set Optional: Matching P/S Pulley

  616 5-Rib P/S Pulley w/Keyway

  617 5-Rib P/S Pulley w/Press Fit

 

  7310 Set Drives: W/P, Alt.,

  7311 6-Rib Crank Pulley 7” dia.

  6322 6-Rib W/P Pulley 5-1/4" dia.

  208   6-Rib Alt. Pulley w/Cover 2-3/4" dia.

 

  7330 Set Drives: W/P, Alt., and P.S.

  7331 6&6-Rib Crank Pulley 7” dia.

  6322 6-Rib W/P Pulley 5-1/4" dia.

  208   6-Rib Alt. Pulley w/Cover 2-3/4" dia.

  7330 Set Optional: Matching P/S Pulley

  623 6-Rib P/S Pulley w/Keyway

  624 6-Rib P/S Pulley w/Press Fit

 

  7610 Set Drives: W/P, Alt.,

  7611 6-Rib Crank Pulley 5-3/4" dia.

  6212 6-Rib W/P Pulley 6-1/4" dia.

  208   6-Rib Alt. Pulley w/Cover 2-3/4" dia.

 

  7670 Set Drives: W/P, Alt.,

  7671 6-Rib Crank Pulley 7" dia.

  7622 6-Rib W/P Pulley 5-1/4" dia.

  208   6-Rib Alt. Pulley w/Cover 2-3/4" dia.

Grid  List 

28 Item(s)

per page

Grid  List 

28 Item(s)

per page