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GM Universal / Corvette style Cast Iron 1" Bore Master Cylinder. 9/16" & 1/2" Ports on Both Sides

  • Exact Copy of Original
  • Master Cylinder has a piston adapter that will allow for power or manual applications
  • For Disc/Drum or Drum/Drum Applications


Bore Size

  • 1"


  • Disc/ Drum

Master Cylinder Finish

  • Cast Iron

Port Sizes

  • 9/16"-18 & 1/2"-20


  • 8"


  • 5"

Center Mounting Holes

  • 3-3/8"


  • Dual

Box Size

  • 8x8x14


  • 10


Notes Universal fit made for disc brake conversions with a dual bail fluid compartment and adapter for power or manual brakes. Can be used for manual or power applications. Deep bore with a shallow bore adapter included.:

GM Universal Cast Iron Master Cylinder, 1" Bore

SKU: MC1321H
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