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March Chevy Small Block Ultra Outward Mount Serpentine Kits


March Performance
March Chevy Small Block Ultra Outward Mount Serpentine Kits

March Chevy Small Block Ultra Outward Mount Serpentine Kits replace your low performance V-belts, pulleys, brackets and eliminate any issues with belt throwing. Complete and simple to bolt on. Outward mount kits locate your alternator and A/C outside the engine outline and back towards the cylinder heads, ideal for engine compartments with minimal engine to radiator clearance. The "Ultra" kits feature sculpted Futura mounting brackets that are precision CNC-machined from solid billet 6061-T6 aluminum to fit perfectly as well as handle high torque and vibration.

The high tensile strength of the material combined with the hard coating on all high wear areas means a much longer duty life than common cast pulleys with no chance of any type of fracturing or structural failure. All pulleys and brackets have a "No Polishing" maintenance-free clear powdercoating. An adjustable stainless steel tensioning rod with chrome-moly rod ends and mounting hardware is also included. There are two pulley ratios available; Performance to increase horsepower by reducing accessory drag, with typical gains of 12-15 horsepower at the rear wheels and High Waterflow to increase cooling by speeding up water flow and fan speed, critical for low speed driving where most overheating occurs.

Kits Include:
  • Alternator Bracket
  • Alternator Pulley with Fan and Nose Cover
  • Water Pump Pulley with Nose Cover
  • Crankshaft Pulley
  • Idler Bracket with Dual Idlers
  • Heater Hose Extension Fitting
  • Tensioning Rods & Adjustable Rod Ends
  • Grade 8 Mounting Hardware

    Power Steering Kits Add:
  • Power Steering Bracket & Pulley

    A/C Kits Add:
  • A/C Bracket, Hardware and Nose Cover

    Kits Require:
  • Fits most 1955 and newer Chevys and 1968-82 Corvettes
  • Up to 17'' Clearance from water pump centerline to side of engine compartment (see diagram below)
  • Will not work with Blower set-ups, idler pulley interferes with blower drive belt
  • Two accessory holes in cylinder head for mounting
  • If using ZZ4 timing cover you will have to modify short water pump for clearance
  • GM 10si style alternator with mounting tabs at 6 and 12 O'Clock
  • Most kits require a standard rotation small block Chevy short water pump
  • Power steering kits require power steering pump style specified, must have side motor mounts on 1955-57 Chevy, must use remote reservoir style on Chevelle, Monte Carlo, El Camino, 1970-up Camaro and S-10
  • A/C kits require a reverse rotation 1984-91 Corvette water pump and Sanden 505 or 508 Compressor


  • 12 Products

    Ultra Series Outward Mount Serpentine Kits
  • Performance Ratio Pulleys
  • Standard Rotation Water Pump
  • March Performance 20431 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20431
    Outward Mount Performance Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Standard Rotation Short Water Pump
  • Driver Side Alternator
  • FREE
    SHIPPING
    & HANDLING!
    $479.99
    Order Today Ships 05/11/16
    March Performance 20441 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20441
    Outward Mount Performance Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Standard Rotation Short Water Pump
  • Driver Side Alternator
  • Saginaw Keyway Power Steering Pump
  • FREE
    SHIPPING
    & HANDLING!
    $680.99
    Order Today Ships 05/11/16
    March Performance 20446 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20446
    Outward Mount Performance Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Standard Rotation Short Water Pump
  • Driver Side Alternator
  • Saginaw Press Fit Power Steering Pump
  • FREE
    SHIPPING
    & HANDLING!
    $677.99
    Order Today Ships 05/11/16
    March Performance 20461 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20461
    Outward Mount Performance Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Standard Rotation Short Water Pump
  • Driver Side Alternator
  • Remote Reservoir Power Steering
  • FREE
    SHIPPING
    & HANDLING!
    $730.99
    Order Today Ships 05/11/16

    Ultra Series Outward Mount Serpentine Kits
  • High Water Flow Ratio Pulleys
  • Standard Rotation Water Pump
  • March Performance 20432 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20432
    Outward Mount High Water Flow Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Standard Rotation Short Water Pump
  • Driver Side Alternator
  • FREE
    SHIPPING
    & HANDLING!
    $479.99
    Order Today Ships 05/11/16
    March Performance 20451 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20451
    Outward Mount High Water Flow Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Standard Rotation Short Water Pump
  • Driver Side Alternator
  • Saginaw Keyway Power Steering Pump
  • FREE
    SHIPPING
    & HANDLING!
    $673.99
    Ships
    March Performance 20456 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20456
    Outward Mount High Water Flow Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Standard Rotation Short Water Pump
  • Driver Side Alternator
  • Saginaw Press Fit Power Steering Pump
  • FREE
    SHIPPING
    & HANDLING!
    $680.99
    Order Today Ships 05/11/16
    March Performance 20471 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20471
    Outward Mount High Water Flow Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Standard Rotation Short Water Pump
  • Driver Side Alternator
  • Remote Reservoir Power Steering
  • FREE
    SHIPPING
    & HANDLING!
    $736.99
    Order Today Ships 05/11/16

    Ultra Series Outward Mount Serpentine Kits
  • High Water Flow Ratio Pulleys
  • Reverse Rotation Water Pump
  • March Performance 20425 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20425
    Outward Mount High Water Flow Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Reverse Rotation Short Water Pump
  • Driver Side Alternator
  • Sanden 505 or 508 A/C Compressor
  • FREE
    SHIPPING
    & HANDLING!
    $948.99
    Order Today Ships 05/11/16
    March Performance 20426 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20426
    Outward Mount High Water Flow Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Reverse Rotation Short Water Pump
  • Driver Side Alternator
  • Sanden 505 or 508 A/C Compressor
  • Saginaw Keyway Power Steering Pump
  • FREE
    SHIPPING
    & HANDLING!
    $1,014.99
    Order Today Ships 05/11/16
    March Performance 20427 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20427
    Outward Mount High Water Flow Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Reverse Rotation Short Water Pump
  • Driver Side Alternator
  • Sanden 505 or 508 A/C Compressor
  • Saginaw Press Fit Power Steering Pump
  • FREE
    SHIPPING
    & HANDLING!
    $1,065.99
    Order Today Ships 05/11/16
    March Performance 20428 - March Chevy Small Block Ultra Outward Mount Serpentine Kits
    655-20428
    Outward Mount High Water Flow Serpentine Drive Kit
    Includes Brackets and Pulleys to Install:
  • Reverse Rotation Short Water Pump
  • Driver Side Alternator
  • Sanden 505 or 508 A/C Compressor
  • Remote Reservoir Power Steering
  • FREE
    SHIPPING
    & HANDLING!
    $1,127.99
    Order Today Ships 05/11/16

    12 Products