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Pro Action™ BBC 24° (320cc Intake Runner/119cc Chamber) Mechanical/Solid Roller Assembled Cylinder Head

Part Number: 11011-03

Availability: In stock

Code: 11011-03

Shipping Weight: 39.00

Pro Action 24° (320cc Intake Runner/119cc Chamber) Mechanical/Solid Roller Assembled Cylinder Head

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  • Fully Assembled w/ COMP Cams® Components For Solid Roller Cams Up To .750" Lift

  • 320cc Intake Runners & 119cc Chambers

  • 2.250" IN. & 1.880" EX. Valve Sizes

  • Angled Spark Plug Holes

  • Single Aluminum Head

Pro Action™ Big Block Chevy Aluminum Heads

First-rate performance, progressive engineering and unmatched quality are the foundations of the Pro Action™ head series, and the RHS® BBC heads feature all of them and more. Capable of making up to 1000 horsepower, Pro Action™ BBC Cylinder Heads provide you with more features, better flow numbers and superior "as cast" finished quality. Fully assembled and a tremendous performer for Big Block Chevy street, drag race and powerboat applications.

  • Patented Clean Cast Technology™ provides superior port-to-chamber transitions & optimal airflow efficiency

  • Hardened multi-angle intake & radiused exhaust valve seats are utilized to outflow the competition by up to 5%

  • Refined water jacket design improves thermal conductivity & extra-thick deck faces allow angle milling for compression

  • Premium Bronze valve guides for superior heat dissipation & longer life

  • 320cc Intake Runner and 119cc Combustion Chamber

  • Lightweight aluminum construction

Engine Family Big Block Chevy
Cylinder Head Series Pro Action™
Cylinder Head Style No
Configuration Assembled
Material No
Intake Runner 320cc
Chamber 119cc
Spark Plugs Angle
Lifter Type/Valve Train Solid/Mechanical Roller
Max Lift .750"
Assembly Kit Part Number 11991-01
Intake Valve Part Number 6022
Intake Valve 2.250" x 11/32" + .250" Long
Exhaust Valve Part Number 6023
Exhaust Valve 1.880" x 11/32" + .100" Long
Spring Part Number 991
Retainer Part Number 733
Spark Plug Specs 14mm, .750" reach, gasketed
Bare Head Part Number 11011