bowtie street

BIG-BLOCK BOWTIE RACE CYLINDER HEADS

12363425

BOWTIE RACING CYLINDER HEAD  

  • Aluminum racing head
  • Machined for 2.190"/1.880" valves (+.400" long required)
  • 380-cc rectangular intake ports – raised .100"
  • 110-cc exhaust port – raised .750", vanes in port floor (“W” port)
  • 115-cc “open chamber” combustion chamber
  • Rocker cover rails raised .250"
  • Two additional head bolt holes in valley
  • Pushrod guide plates P/N 3860038 must be ground for clearance

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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.