Racing Flag

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

Racing Flag

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

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 that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.