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  CORVETTE SERPENTINE & V-BELT PULLEYS

Pulleys have their own unique V-spacing and must use original 1971-1982 brackets and water pump.
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.

 

1971-1983 Corvette V-Belt
Performance Ratio's
Set #
Crank Pulley
Water Pump Pulley
Alternator Pulley w/Nose Cover
Optional P/S Pulley
Optional Water Pump Nose Cover
Optional Alternator Fan
5030
2V
2V
1V
#515 press or #523 key
321
221
5070
3V
2V
1V
Use your O.E.M.# to match or see page 50
5050
3V
3V
1V


Detailed Information of Set Components and Size
5030 Set Drives: Water Pump, Alternator, P.S.
Set Includes:
5031
2-Groove Crank Pulley 5 1/2”
 
5072
2-Groove Water Pump 6 1/4”
 
143
1-Groove Alternator Pulley 3 3/16” w/Cap
     
5070 Set Drives: Water Pump, P.S., A/C
Set Includes:
5051
3-Groove Crank Pulley 5 1/2”
 
5072
2-Groove Water Pump 6 1/4”
 
143
1-Groove Alternator Pulley 3 3/16” w/Cap
     
5050 Set Drives: Water Pump, P.S., A/C, Air Pump
Set Includes:
5051
3-Groove Crank Pulley 5 1/2”
 
5052
3-Groove Water Pump Pulley 6 1/4 ”
 
143
1-Groove Alternator Pulley 3 3/16” w/Cap

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