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March Covette Serpentine Pulleys


1971-1982 CORVETTE V-BELT

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


1984-1987 Corvette Serpentine

Power and Amp Series (Recommended for Automatic Transmission Vehicles)

Set #

Material

Crank Pulley

Water Pump Pulley

Alternator Pulley

Alternator Pulley w/Cover

Optional Alternator Fan

4435

2 pc. steel/aluminum

6 rib blk alum. #4101

-

6 rib blk steel #110

-

-

4445

3 pc. aluminum clear

6 rib

Non rib

-

6 rib #112

221

Performance Series

Set #

Material

Crank Pulley

Water Pump Pulley

Alternator Pulley

Alternator Pulley w/Cover

Optional Alternator Fan

4120

2 pc. steel/aluminum

6 rib blk alum. #4101

-

6 rib blk steel #120

-

-

4130

3 pc. aluminum clear

6 rib

Non rib

-

6 rib #208

221


1988-1991 Corvette Serpentine

Power and Amp Series (Recommended for Automatic Transmission Vehicles)

Set #

Material

Crank Pulley

Water Pump Pulley

Alternator Pulley

Alternator Pulley w/Cover

Optional Alternator Fan

4425

3 pc. steel/aluminum

6 rib blk alum. #4101

Non rib blk alum. #4102

6 rib blk steel #110

-

-

4430

3 pc. aluminum

6 rib #4111

Non rib #4112

-

6 rib #112

221

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

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Additional Information
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