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RHS 12042-02

Pro Action 23° Aluminum Cylinder Head Combustion Chambers: 72cc



RHS 12042-02
Representative Image
Product images may differ from actual product appearance.

Part Number: 784-12042-02

Pro Action 23° Aluminum Cylinder Head
  • Combustion Chambers: 72cc
  • Angle plug
  • $759.99
    Ships 10/10/16
    if Ordered Today
    Made In USA
    Truck Freight: $99.00
    RHS 12042-02 Pro Action 23° Aluminum Cylinder Head Combustion Chambers: 72cc $759.99

    RHS 12042-02 Details

    23° Aluminum Cylinder Heads for Aggressive Flat Tappet/Hydraulic Roller Cams

  • Intake Ports: 180cc
  • Valves: 2.020" Int/1.600" Exh
  • Single Valve Springs: 1.460" (.560" max lift)
  • Assembled

  • Clean Cast Technology
  • For Hardcore Street/Race/Marine Performance
  • Enhanced Features; Superior Quality
  • Proven To Out-Perform The Competition

  • Specifications:

    Engine Make/Size
    Chevy Small Block (262-400)
    Type
    Complete
    Emission
    Non-Emissions
    Usage
    Street/Performance
    Cylinder Head Type
    Standard
    Preparation
    Bolt On (Not Required)
    Finish
    Cast Aluminum
    Manufacturer's Part Number:
    12042-02

    Optimal performance with reliability, Pro Action Heads deliver significant power and torque gains right out of the box for all Small Block Chevy applications. These cylinder heads are perfect for a variety of street rod, muscle car, oval track, and drag racing performance engines. Sold individually.

    Features
  • Advanced port/runner/chamber design
  • 180cc intake ports
  • 64cc or 72cc combustion chambers
  • Straight or angle plug configuration
  • Modified water jacket
  • Multi-angle Serdi valve job
  • Radiused exhaust valve seats for up to 5 percent more airflow than the competition

  • Does RHS 12042-02 fit your vehicle?

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    1978 CHEVROLET MONZA

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    1979 GMC K1500 PICKUP

    • Liter: 5.0
    • EngineType: V8
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    1961-1966 CHEVROLET SUBURBAN

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    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8

    1982 CHEVROLET K20 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SCOTTSDALE

    1967-1968 CHEVROLET C10 PICKUP

    • Liter: 5.3
    • EngineType: V8
    • SubModel: BASE

    1968 CHEVROLET K20 SUBURBAN

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    • EngineType: V8
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    1975-1977 CHEVROLET K20 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SILVERADO

    1983-1986 CHEVROLET G20 VAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SPORTVAN

    1972 CHEVROLET CORVETTE

    • CC: 5737
    • Liter: 5.7
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    • EngineType: V8

    1967-1969 CHEVROLET CAMARO

    • Liter: 5.3
    • EngineType: V8
    • SubModel: RS

    1985 CHEVROLET CAPRICE

    • Liter: 5.7
    • SubModel: CLASSIC
    • CUI: 350
    • EngineType: V8

    1982-1986 CHEVROLET C10 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SILVERADO

    1981 CHEVROLET C20 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: DELUXE

    1982-1986 GMC K1500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1982-1986 GMC C1500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1985-1986 CHEVROLET K20 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SCOTTSDALE

    1959 CHEVROLET IMPALA

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8

    1978-1981 GMC C1500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1973 CHEVROLET CHEVELLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: DELUXE

    1973 CHEVROLET CAMARO

    • CC: 5736
    • Liter: 5.7
    • SubModel: Z28
    • EngineType: V8

    1980 CHEVROLET MALIBU

    • CC: 5031
    • Liter: 5.0
    • SubModel: SPORT
    • EngineType: V8

    1982-1986 CHEVROLET K10 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM

    1958 CHEVROLET DEL RAY

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8

    1959-1960 CHEVROLET EL CAMINO

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8

    1981-1986 CHEVROLET C20 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: CUSTOM

    1976-1978 CHEVROLET C10 SUBURBAN

    • EngineType: V8
    • SubModel: BASE

    1974 CHEVROLET NOVA

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1979-1980 GMC G25/G2500 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: RALLY STX

    1979-1986 GMC C1500 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: HIGH SIERRA

    1980 CHEVROLET CAPRICE

    • Liter: 5.7
    • SubModel: CLASSIC SPORT
    • CUI: 350
    • EngineType: V8

    1968 GMC K25/K2500 SUBURBAN

    • Liter: 5.4
    • EngineType: V8
    • SubModel: BASE

    1973 CHEVROLET CHEVELLE

    • CC: 5736
    • Liter: 5.7
    • SubModel: DELUXE
    • CUI: 350
    • EngineType: V8

    1967 GMC G35/G3500 VAN

    • Liter: 5.3
    • EngineType: V8
    • SubModel: BASE

    1979 CHEVROLET MONTE CARLO

    • Liter: 4.4
    • SubModel: BASE
    • CUI: 267
    • EngineType: V8

    1986 CHEVROLET CAPRICE

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1979-1980 GMC K1500 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1970-1972 CHEVROLET CHEVELLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1983-1986 CHEVROLET G20 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SPORTVAN

    1983-1984 CHEVROLET EL CAMINO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1973 CHEVROLET EL CAMINO

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 350
    • EngineType: V8

    1969-1980 GMC K1500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1980 CHEVROLET CAPRICE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CLASSIC SPORT

    1978 CHEVROLET NOVA

    • EngineType: V8
    • SubModel: POLICE

    1975-1980 CHEVROLET C20 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1986 GMC C3500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: HIGH SIERRA

    1981-1986 CHEVROLET C20 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM

    1967 CHEVROLET SUBURBAN

    • Liter: 4.6
    • EngineType: V8
    • SubModel: BASE

    1969-1970 CHEVROLET C20 PICKUP

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1982-1985 GMC JIMMY

    • Liter: 5.0
    • EngineType: V8
    • SubModel: HIGH SIERRA

    1969-1973 GMC K25/K2500 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1969-1971 CHEVROLET CHEVELLE

    • Liter: 5.7
    • EngineType: V8
    • SubModel: NOMAD

    1983-1986 CHEVROLET G30 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BEAUVILLE

    1974 CHEVROLET NOVA

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1975 CHEVROLET NOVA

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8

    1975-1980 CHEVROLET K10 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SCOTTSDALE

    1964-1967 CHEVROLET EL CAMINO

    • Liter: 4.6
    • EngineType: V8
    • SubModel: BASE

    1961-1966 CHEVROLET C20 PICKUP

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8

    1971 CHEVROLET C20 PICKUP

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1975 CHEVROLET NOVA

    • EngineType: V8
    • SubModel: LN

    1968 GMC K15/K1500 SUBURBAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8

    1968 GMC K1500 PICKUP

    • Liter: 5.3
    • EngineType: V8
    • SubModel: BASE

    1969-1971 CHEVROLET K20 PICKUP

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • CC: 5736
    • Liter: 5.7
    • SubModel: GREENBRIER
    • CUI: 350
    • EngineType: V8

    1974 CHEVROLET LAGUNA

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1974 CHEVROLET MONTE CARLO

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1981 GMC K2500 PICKUP

    • EngineType: V8
    • SubModel: SIERRA GRANDE

    1976 CHEVROLET CORVETTE

    • Liter: 5.7
    • Aspiration: N
    • SubModel: STINGRAY
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1973 CHEVROLET G10 VAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1982-1986 GMC K2500 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SIERRA CLASSIC

    1981-1983 CHEVROLET IMPALA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1977 CHEVROLET MONZA

    • EngineType: V8
    • SubModel: MIRAGE

    1980-1982 CHEVROLET EL CAMINO

    • EngineType: V8
    • SubModel: SS

    1969-1971 CHEVROLET K10 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1967 GMC C35/C3500 PICKUP

    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8

    1979-1980 GMC G35/G3500 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: VANDURA SPECIAL

    1979-1980 GMC C1500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: HEAVY HALF

    1968-1969 CHEVROLET EL CAMINO

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 307
    • EngineType: V8

    1982-1984 GMC K1500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SIERRA CLASSIC

    1985 CHEVROLET IMPALA

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • EngineType: V8

    1980 CHEVROLET MONTE CARLO

    • CC: 5031
    • Liter: 5.0
    • SubModel: SPORT
    • EngineType: V8

    1971-1974 GMC G25/G2500 VAN

    • EngineType: V8
    • SubModel: RALLY

    1972 CHEVROLET CAMARO

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: Z28
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8
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