CHEVY BIG BLOCK V-BELT PULLEY SETS
Short Water Pump

Performance Ratios Increases horsepower by reducing accessory drag. 12-15 h.p. at rear wheels typical. Eliminates belt throwing. Designed for daily street driving. Precision CNC machined to run perfectly true. 6061-T6 aluminum for extra strength and wear. Finished with a “No Polishing” clear powdercoat.

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. Precision CNC machined to run perfectly true. 6061-T6 aluminum for extra strength and wear. Finished with a “No Polishing” clear powdercoat.

 

Performance Ratios
Set #
Crank Pulley
Water Pump Pulley
Alternator Pulley With Nose Cover
 
Optional power Steering Pulley Keyway
Optional Power Steering Pulley Press Fit
Optional Alternator Fan
7510
1V
1V
1V
 
-
-
221
7530
2V
2V
1V
 
221
7550
3V
2V
1V
 
221
High Water Flow Ratios
Set #
Crank Pulley
Water Pump Pulley
Alternator Pulley With Nose Cover
 
Optional power Steering Pulley Keyway
Optional Power Steering Pulley Press Fit
Optional Alternator Fan
7710
1V
1V
1V
 
-
-
221
7730
2V
2V
1V
 
221
7750
3V
2V
1V
 
221

Optional: Water pump nose cover #312. For power steering pulley dimension see Accessories.

Detailed Information of Set Components and Size
7510 Set Drives: Water Pump, Alternator
Set Includes: Part#  
 
7511
1-Groove Crank Pulley 5 1/2”
 
7512
1-Groove Water Pump Pulley 6 1/4”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
7530 Set Drives: Water Pump, Alternator, P.S. or A/C
 
7531
2-Groove Crank Pulley 5 1/2”
 
7532
2-Groove Water Pump Pulley 6 1/4”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
7550 Set Drives: Water Pump, Alternator, P.S., A/C
 
7551
3-Groove Crank Pulley 5 1/2”
 
7532
2-Groove Water Pump Pulley 6 1/4 ”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
7710 Set Drives: Water Pump, Alternator
 
7711
1-Groove Crank Pulley 7”
 
7512
1-Groove Water Pump Pulley 6 1/4 ”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
7730 Set Drives: Water Pump, Alternator, P.S. or A/C
 
7731
2-Groove Crank Pulley 7”
 
7532
2-Groove Water Pump Pulley 6 1/4 ”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
7750 Set Drives: Water Pump, Alternator, P.S., A/C
 
7751
3-Groove Crank Pulley 7”
 
7532
2-Groove Water Pump Pulley 6 1/4”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”

Matching Alternator Power Steering A/C Units Etc. - See Accessories