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March Performance Chevy Big Block Serpentine Drive Kits
Pulley Kit, Serpentine, Aluminum, Clear Powdercoated, Chevy, Big Block, Kit
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Estimated Ship Date: Oct 22, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
20580
Part Type:
Product Line:
Summit Racing Part Number:
MCH-20580
Pulley Style:
Serpentine
Pulley Set Style:
High water flow ratio
Water Pump Style:
Short
Pulley Material:
Aluminum
Pulley Finish:
Clearcoat
Water Pump Pulley Included:
Yes
Water Pump Rotation:
Clockwise
Water Pump Pulley Grooves:
6-groove, serpentine
Water Pump Nose Cone Included:
Yes
Crankshaft Pulley Included:
Yes
Crankshaft Pulley Grooves:
6-groove, serpentine
Crankshaft Pulley Bolt Hole Quantity:
Three
Crankshaft Nose Cover Included:
No
Power Steering Pulley Included:
Yes
Power Steering Pulley Grooves:
6-groove, serpentine
Power Steering Pulley Attachment:
Keyway
Power Steering Pump Style:
Saginaw
Power Steering Brackets Included:
Yes
Alternator Pulley Included:
Yes
Alternator Pulley Grooves:
6-groove, serpentine
Alternator Fan Included:
Yes
Alternator Nose Cover Included:
Yes
Alternator Brackets Included:
Yes
Air Conditioning Pulley Included:
No
Air Conditioning Cover Included:
No
Air Conditioning Bracket Included:
No
Idler/Tensioner Included:
No
Idler Cover Included:
No
Idler Brackets Included:
No
Belt Included:
No
Hardware Included:
Yes
Bracket Color:
Clearcoat
Bracket Material:
Aluminum
Quantity:
Sold as a kit.
March Performance Chevy Big Block Serpentine Drive Kits
March Performance Chevy big block serpentine drive kits simply bolt onto the front of any big block Chevy heads. The bracket kits come complete with stainless steel tensioning rods and chromoly rod ends for high performance operation. Matching serpentine pulleys are precision CNC-machined from 6061-T6 aluminum and then clear powdercoated to eliminate polishing in those hard-to-reach places. These pulleys will not fracture like common cast pulleys, since they have high tensile strength for much longer wear. The high-wear areas on these pulleys are hard coated. Their street rod ratio increases water flow and fan speed, which helps at critical low-speed driving. These performance pulleys create approximately 12 hp, depending on the accessories driven.
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Some parts are not legal for use in California or other states with similar laws / regulations
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