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March Performance Small Block Chevy Ultra Serpentine Conversion Kits 20428-08
Part Number: MCH-20428-08
March Performance Small Block Chevy Ultra Serpentine Conversion Kits
Pulleys, Ultra Serpentine Conversion, High Water Flow Ratio, Billet Aluminum, Chevy, Small Block, Short, Kit
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Estimated Ship Date: Oct 22, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
20428-08
Part Type:
Product Line:
Summit Racing Part Number:
MCH-20428-08
Pulley Style:
Serpentine
Pulley Set Style:
High water flow ratio
Water Pump Style:
Short
Pulley Material:
Aluminum
Pulley Finish:
Black
Water Pump Pulley Included:
Yes
Water Pump Rotation:
Counterclockwise
Water Pump Pulley Grooves:
6-groove, serpentine
Water Pump Nose Cone Included:
Yes
Crankshaft Pulley Included:
Yes
Crankshaft Pulley Grooves:
6-groove, serpentine
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:
Canister
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:
Yes
Air Conditioning Pulley Grooves:
6-groove, serpentine
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:
Requires a 1988-91 Corvette reverse-rotation short water pump.
March Performance Small Block Chevy Ultra Serpentine Conversion Kits
March Performance small block Chevy Ultra serpentine conversion kits will make it easy to convert your old V-belt pulleys. They bolt to the front of any 1969 or later small block Chevy heads and are precision CNC-machined from solid billet 6061 T-6 aluminum to fit perfectly and handle high-torque and vibration. The included bracket kits come complete with stainless steel tensioning rods and chromoly rod ends for high performance operation. Required mounting hardware is included and is powdercoated to eliminate polishing in those hard-to-reach places. Matching serpentine pulleys are precision CNC-machined from 6061 T-6 aluminum. These pulleys will not fracture like common cast pulleys because they are hard coated in the high-wear areas on their high water flow ratio pulleys. The street rod ratio increases water flow and fan speed. This helps at critical low-speed driving.
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Some parts are not legal for use in California or other states with similar laws / regulations
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