Performer RPM Cylinder Heads For Buick

Buick Cylinder Heads by Edelbrock
  • 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
These Performer RPM cylinder heads are designed for 400, 430 and 455 c.i.d. Buick engines. This cylinder head includes 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.
  Bare (Single) Complete (Single)
Application Dyno Emissions Satin Satin Polished
Performer RPM Buick (no exhaust crossover port) - - 60049 600419 †
Performer RPM Buick (Super Stock only) - 60037 - -
Special order non-returnable product, please allow 4-6 weeks for delivery.
Edelbrock Installation Note 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).
#60049: Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
Valve Lift .100" .200" .300" .400" .500" .600" .700"
Intake 68 127 190 241 274 273 -
Exhaust 58 108 150 173 183 190 -
Edelbrock Tech Note TECH NOTE: Please view Cylinder Head Flow Data and Valve Springs & Retainers for all Edelbrock Performance Aluminum Cylinder Heads.
The following guide is designed to help you determine which Edelbrock components are legal for use on your vehicle. Learn more about Edelbrock Product Emissions Guide.

    50-State Legal
    For Racing Use ONLY
    For Use on Pre-Pollution Controlled Vehicles (PPCV)
    Stock Replacement Part
    Engine Swaps