aluminum race blocks

SMALL-BLOCK ALUMINUM RACE BLOCKS

10134400

400 ALUMINUM BARE BLOCK

  • A-356 aluminum competition block
  • CNC-machined
  • Siamesed bores with increased wall thickness
  • 4/117” rough-finished bore
  • 4.135” maximum bore  
  • 3.750” maximum stroke 
  • Splayed 4-bolt steel mains 
  • 400 main size 
  • Dry-sump use only 
  • Tested to 800-horsepower   

24502495

400 ALUMINUM TALL-DECK BARE BLOCK

  • A-356 aluminum competition block
  • CNC-machined
  • Siamesed bores with increased wall thickness
  • 4.117” rough-finished bore
  • 4.135” maximum bore
  • 4.125” maximum stroke
  • Splayed 4-bolt steel mains 
  • 400 main size
  • Dry-sump use only 
  • Tested to 800-horsepower   

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.

  • The Manufacturer's Suggested Retail Price excludes tax, shipping and installation. Individual retailer pricing may vary. Please see your local dealer or retailer for details.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.