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March Performance

Big Block Oldsmobile Ultra Mid Mount Brackets and Pulley Kit

Big Block Oldsmobile Ultra Mid Mount Brackets and Pulley Kit

Regular price $931.67 USD
Regular price $978.25 USD Sale price $931.67 USD
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Brackets & Pulleys for...

*This is serpentine kit is a bracket & pulley kit ONLY! Accessories like alternators, power steering, and air conditioning compressors are NOT included* 

Bringing you a bracket and pulley kit JUST for the Oldsmobile 455 big block V-8. Separate alternator with mid-mount a/c and power steering bracket. March Performance provides a larger diameter crank pulley, aiding in driving your alternator, and water pump at idle where it counts. 

All brackets and pulleys are CNC machined with March Performance signature solid billet 6061-T6 aluminum for a spectacular looking machine finish with perfect fit and extra high strength. Maintenance-free clear or black powder coat.

This kit comes complete with full instructions and all necessary grade 8 mounting hardware for your brackets and pulleys for your Oldsmobile. 


Application :

Oldsmobile 455

Oldsmobile 400 *1968-1969 block only


Requirements :

Oldsmobile 6" water pump

Electric fuel pump

Kits Includes:

  • Billet aluminum pulley set for kit fitted for 6" water pump
  • Alternator bracket fitted for older GM 10SI and 12SI Alternators
  • All mounting hardware
  • Power steering bracket for kits selected with power steering
  • power steering Pump pulley and nose cover
  • Air conditioning bracket, idler pulley and needed hardware for kits selected for a/c
  • *kit is fitted for Sanden 7176 compressor - optional to purchase
  • All necessary mounting hardware to install kit
  • *belts are not included but length and part numbers in instructions


Optional billet oil fill tube available : 16012

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