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Performer RPM Cylinder Heads for Buick

These Performer RPM cylinder heads are designed for 400, 430 and 455 c.i.d. Buick engines. These heads include adjustable rocker stud and guide plate set-up for use with small-block Chevy style adjustable 1.6:1 ratio rockers. The large 68cc combustion chambers produce 9.2:1 compression ratio with stock pistons.
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EDELBROCK PERFORMER RPM CYLINDER HEADS FOR BUICK, NO EXHAUST CROSSOVER PORT (COMPLETE, SINGLE) - 60049
Our Price: $1,249.50
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EDELBROCK PERFORMER RPM CYLINDER HEADS FOR BUICK, NO EXHAUST CROSSOVER PORT (COMPLETE, SINGLE) - 60049
  • Cylinder Head Specifications:
  • Combustion chamber volume: 68cc
  • Intake runner volume: 215cc
  • Exhaust runner volume: 130cc
  • Intake valve diameter: 2.125"
  • Exhaust valve diameter: 1.75"
  • Valve stem diameter: 11/32"
  • Valve guides: Manganese bronze
  • Deck thickness: 5/8"
  • Valve spring diameter: 1.55"
  • Valve spring maximum lift: .600"
  • Rocker stud: 3/8"
  • Guideplate: Hardended steel
  • Pushrod diameter: 3/8"
  • Valve angle: 15°
  • Exhaust port location: Stock
  • Spark plug fitment: 14mm x 3/4 reach, gasket seat

INSTALLATION NOTE: Match with Edelbrock head gasket sets. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. Deck thickness: 5/8", rocker stud diameter: 3/8", pushrod diameter: 3/8" (width of slot in guide plate).
   
 
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