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Chevrolet Performance Big Block Chevy ZL1 Aluminum Engine Block

Chevrolet Performance
Chevrolet Performance Big Block Chevy ZL1 Aluminum Engine Block

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ZL1 was the legendary regular production option (RPO) code that struck fear into all competitors who faced 1969 Camaros--and a few Corvettes--equipped with this 427-cubic-inch monster from the factory. The price to own an original ZL1 has surpassed the value of some homes, but you can build your own ZL1 powerhouse thanks to Chevrolet Performance. By reintroducing this infamous aluminum big block machined to blueprinted specs, Chevrolet Performance has made it possible for today's mere mortals to experience the ZL1's pure power and tremendous torque.

  • 356-T6M Aluminum Block
  • Tested to 650 Horsepower
  • Standard Deck Height (9.800'')
  • 4.240'' Finished Bore (4.300'' Maximum Bore, 4.375'' Maximum Stroke)
  • Steel 4-Bolt Main Caps Splayed 16° on the Three Center Mains
  • 2-Piece Rear Main Seal
  • Use Mark IV-type Front Timing Cover
  • Provision for Hydraulic Roller Camshaft
  • Siamese Cylinder Walls
  • Centrifugally-spun Cast Iron Cylinder Sleeves
  • Use Replacement Sleeve #809-12480035
  • -AN O-Ring Oil and Water Plugs

  • 1 Product

    ZL1 Aluminum Engine Block
  • Big Block Chevy (2-Piece Rear Main Seal)
  • Standard Deck: 9.800''
  • $119
    Order Today Ships 12/02/15

    1 Product