aluminum racing

SMALL-BLOCK ALUMINUM RACING CYLINDER HEADS

24502580

SEMI-FINISHED 18° CYLINDER HEAD

  • Fully machined, semi-finished, no seats or guides
  • Non-CNC ports and combustion chamber are “as-cast”
  • 60-cc “as-cast” combustion chambers
  • Designed for up to 2.200"/1.625" valves
  • 215-cc “as-cast” intake ports
  • .080" extra material on deck face and .055" on intake face

24502615

SEMI-FINISHED 15° CYLINDER HEAD

  • Fully machined, semi-finished, no seats or guides
  • Non-CNC ported, ports and combustion chamber are “as-cast”
  • Great head for drag racing Comp-Eliminator, both V-8 and 4-cylinder applications
  • Casting has been “rolled” 2°, valve guides are also tipped 1°
  • 210-cc “as-cast” intake ports
  • 35-37-cc “as-cast” combustion chamber
  • Capable of 900+ horsepower
  • Multiple professional drag racing world records

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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.