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Chevrolet Performance 10134400 - Chevrolet Performance Small Block Chevy Aluminum Race Blocks

Chevrolet Performance 10134400 - Chevrolet Performance Small Block Chevy Aluminum Race Blocks

Chevrolet Performance#809-10134400

Small Block Chevy Aluminum Race Block
  • Standard Deck (400 Main)
  • 4.117'' Rough Finished Bore (4.150'' Maximum)

    Chevrolet Performance 10134400 - Chevrolet Performance Small Block Chevy Aluminum Race Blocks Details

    Standard Deck

  • Dry sump use only
  • 3.750" maximum stroke

  • Chevrolet Performance 10134400 - Chevrolet Performance Small Block Chevy Aluminum Race Blocks

    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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