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Chevrolet Performance 12480018

Replacement Oil Galley Plug GM Aluminum Blocks

Chevrolet Performance 12480018

809-12480018

jegs shipping
Estimated ship date 09/28/17 if Ordered Today
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Chevrolet Performance 12480018 Replacement Oil Galley Plug GM Aluminum Blocks $31.97
Replacement Oil Galley Plug
  • GM Aluminum Blocks
  • Size: -6 AN
  • 1/pkg

  • Specifications:

    Manufacturer's Part Number:
    12480018

    Chevrolet Performance Small Block Chevy Aluminum Race Blocks combine the competition strength of cast iron with the weight savings of aluminum. This allows you to build a more balanced race car, improving chassis dynamics without sacrificing power.

    Features
  • A-356 aluminum block
  • Splayed 4-bolt steel mains
  • Priority main oiling system
  • Tested to over 800 horsepower
  • CNC-machined for +/-.001'' tolerances
  • Siamese bores with increased wall thickness
  • Centrifugally-spun cast iron cylinder sleeves
  • Extra-thick main bearing bulkhead machined at 5°
  • Enlarged cam bosses allow machining for the use of larger bearings
  • Extra-thick deck surfaces with blind-tapped head bolt holes improve head gasket seal
  • Cylinder decks, front and rear of case, oil pan rail surfaces, and head dowel pins are blueprinted

    Technical Notes
  • Oil dipstick holes are not drilled
  • Check timing system clearance before engine assembly
  • 2-piece rear main crankshaft and pre-1986 oil pan required
  • 2.000'' OD cam bearings required at all five locations (1.867'' ID)
  • Billet wet sump rear main cap can be adapted to dry sump with plugs
  • Some roller lifters may require clearancing at top of lifter bores (.842'' diameter)

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