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March Performance LT-1 Serpentine Conversion Kits 20921-08
Part Number: MCH-20921-08
March Performance LT-1 Serpentine Conversion Kits
Pulley Kit, Serpentine, Aluminum, Black Powdercoated, Chevy, Small Block, LT1, Kit
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Estimated Ship Date: Oct 22, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
20921-08
Part Type:
Product Line:
Summit Racing Part Number:
MCH-20921-08
Pulley Style:
Serpentine
Pulley Set Style:
Performance ratio
Pulley Material:
Aluminum
Pulley Finish:
Black
Water Pump Pulley Included:
No
Water Pump Rotation:
Counterclockwise
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:
Yes
Power Steering Pulley Included:
Yes
Power Steering Pulley Grooves:
5-groove, serpentine
Power Steering Pulley Attachment:
Press fit
Power Steering Pump Style:
Remote reservoir
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:
Yes
Air Conditioning Bracket Included:
Yes
Idler/Tensioner Included:
Yes
Idler Pulley Grooves:
6-groove, serpentine
Idler Cover Included:
Yes
Idler Brackets Included:
Yes
Belt Included:
No
Hardware Included:
Yes
Bracket Color:
Black
Bracket Material:
Aluminum
Quantity:
Sold as a kit.
Notes:
This kit is designed to fit early 50's later wide bodied cars, A/C and alternator extend outward 17 inches from center of water pump.
March Performance LT-1 Serpentine Conversion Kits
March Performance LT-1 serpentine conversion kits are completely CNC machined from solid billet 6061-T6 aluminum. This translates into a spectacular looking new machine finish with perfect fit and extra strength. All of these billet pulleys and brackets are maintenance-free clear powdercoated.
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Some parts are not legal for use in California or other states with similar laws / regulations
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