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RHS 12042-02 - RHS Pro Action Aluminum Small Block Chevy Cylinder Heads



RHS 12042-02 - RHS Pro Action Aluminum Small Block Chevy Cylinder Heads
Representative Image
Product images may differ from actual product appearance.

JEGS Part Number: 784-12042-02

Pro Action 23° Aluminum Cylinder Head
  • Combustion Chambers: 72cc
  • Angle plug
  • $759.99
    Ships 08/04/16
    if Ordered Today
    Truck Freight: $99.00

    RHS 12042-02 - RHS Pro Action Aluminum Small Block Chevy Cylinder Heads 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 this fit your vehicle?

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    1986 CHEVROLET CAPRICE

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

    1977 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: S

    1980-1986 GMC C1500 SUBURBAN

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

    1984-1986 CHEVROLET C10 SUBURBAN

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

    1974 CHEVROLET CAMARO

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

    1973-1974 CHEVROLET MONTE CARLO

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

    1981 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1969 CHEVROLET CHEVELLE

    • Liter: 5.7
    • EngineType: V8
    • SubModel: 300 DELUXE

    1984-1986 CHEVROLET G20 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: CHEVY VAN

    1982-1983 CHEVROLET MALIBU

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

    1980-1981 GMC C1500 SUBURBAN

    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8

    1985 CHEVROLET K10 SUBURBAN

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

    1982-1986 GMC K2500 PICKUP

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

    1981 GMC K1500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1974 CHEVROLET NOVA

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

    1970-1974 CHEVROLET G30 VAN

    • EngineType: V8
    • SubModel: SPORTVAN

    1971 GMC G35/G3500 VAN

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

    1982 CHEVROLET C10 SUBURBAN

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

    1968-1972 CHEVROLET CHEVELLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: MALIBU

    1961-1965 CHEVROLET SUBURBAN

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

    1986 CHEVROLET C30 PICKUP

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

    1976-1980 CHEVROLET C10 SUBURBAN

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

    1976 CHEVROLET MONTE CARLO

    • Liter: 5.7
    • EngineType: V8
    • SubModel: LANDAU

    1985-1986 CHEVROLET K20 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SILVERADO

    1979 CHEVROLET MALIBU

    • EngineType: V8
    • SubModel: LANDAU

    1982 GMC G35/G3500 VAN

    • EngineType: V8
    • SubModel: VANDURA SPECIAL

    1975-1977 CHEVROLET C10 SUBURBAN

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

    1972 CHEVROLET NOVA

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

    1973 CHEVROLET CAPRICE

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

    1985-1986 CHEVROLET K20 SUBURBAN

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

    1972 CHEVROLET CHEVELLE

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

    1980 CHEVROLET G30 VAN

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

    1977 CHEVROLET MONZA

    • EngineType: V8
    • SubModel: TOWNE COUPE

    1969-1971 CHEVROLET CHEVELLE

    • Liter: 5.7
    • EngineType: V8
    • SubModel: GREENBRIER

    1971 CHEVROLET EL CAMINO

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SS

    1974 CHEVROLET MONTE CARLO

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

    1980 GMC C2500 SUBURBAN

    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8

    1986 CHEVROLET C30 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SILVERADO

    1980-1986 GMC G15/G1500 VAN

    • EngineType: V8
    • SubModel: RALLY

    1974 CHEVROLET EL CAMINO

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

    1977-1978 GMC K25 PICKUP

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

    1974 CHEVROLET EL CAMINO

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SS

    1979 CHEVROLET MALIBU

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

    1985 CHEVROLET K20 PICKUP

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

    1981 CHEVROLET K20 SUBURBAN

    • EngineType: V8
    • SubModel: CUSTOM

    1980-1982 GMC C1500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: STREET COUPE

    1981-1982 CHEVROLET G30 VAN

    • EngineType: V8
    • SubModel: CHEVY VAN

    1981 CHEVROLET G30 VAN

    • EngineType: V8
    • SubModel: BASE

    1977-1982 CHEVROLET K30 PICKUP

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

    1980-1981 GMC JIMMY

    • EngineType: V8
    • SubModel: SIERRA GRANDE

    1974 CHEVROLET NOVA

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

    1968 GMC C25/C2500 SUBURBAN

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

    1967 CHEVROLET CHEVELLE

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

    1974 CHEVROLET G20 VAN

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

    1969 CHEVROLET CAMARO

    • Liter: 5.7
    • EngineType: V8
    • SubModel: RS

    1982-1986 CHEVROLET BLAZER K5

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SILVERADO

    1968-1969 CHEVROLET CAMARO

    • Liter: 5.4
    • EngineType: V8
    • SubModel: RS

    1980 CHEVROLET K20 SUBURBAN

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

    1980-1981 CHEVROLET CAPRICE

    • Liter: 4.4
    • EngineType: V8
    • SubModel: CLASSIC LANDAU

    1975 CHEVROLET C30 PICKUP

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

    1969-1972 CHEVROLET CHEVELLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CONCOURS ESTATE

    1979 CHEVROLET MALIBU

    • Liter: 4.4
    • EngineType: V8
    • SubModel: CLASSIC LANDAU

    1982 GMC C1500 PICKUP

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

    1976 GMC G15/G1500 VAN

    • EngineType: ALL
    • SubModel: RALLY

    1983-1986 GMC G35/G3500 VAN

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

    1972-1980 CHEVROLET K20 SUBURBAN

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

    1979-1980 CHEVROLET MALIBU

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

    1978-1979 CHEVROLET NOVA

    • EngineType: V8
    • SubModel: CUSTOM

    1986 GMC C3500 PICKUP

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

    1969-1972 CHEVROLET CAPRICE

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

    1980 GMC C2500 SUBURBAN

    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8

    1967-1968 CHEVROLET CHEVELLE

    • Liter: 5.4
    • EngineType: V8
    • SubModel: CONCOURS

    1977-1979 GMC JIMMY

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

    1968 GMC C1500 PICKUP

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

    1959-1960 CHEVROLET EL CAMINO

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

    1982-1986 GMC C1500 SUBURBAN

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

    1974 GMC C25/C2500 PICKUP

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

    1980 GMC G25/G2500 VAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: RALLY STX

    1979-1980 CHEVROLET MALIBU

    • Liter: 4.4
    • EngineType: V8
    • SubModel: CLASSIC

    1968-1969 GMC G15/G1500 VAN

    • EngineType: V8
    • SubModel: RALLY

    1980-1986 GMC C2500 PICKUP

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

    1972 CHEVROLET CHEVELLE

    • Liter: 5.7
    • SubModel: CONCOURS ESTATE
    • CUI: 350
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • CC: 5736
    • Liter: 5.7
    • SubModel: CONCOURS ESTATE
    • CUI: 350
    • EngineType: V8

    1976 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: LT RALLY SPORT

    1982-1986 GMC C1500 PICKUP

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

    1968-1969 CHEVROLET G20 VAN

    • EngineType: V8
    • SubModel: BASE

    1985 CHEVROLET K20 SUBURBAN

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

    1982-1986 GMC K2500 SUBURBAN

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

    1980-1985 CHEVROLET IMPALA

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

    1982 CHEVROLET C10 PICKUP

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

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • SubModel: CONCOURS ESTATE
    • EngineType: V8

    1981 CHEVROLET K10 PICKUP

    • EngineType: V8
    • SubModel: DELUXE

    1981-1984 CHEVROLET MONTE CARLO

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

    1965-1967 CHEVROLET MALIBU

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

    1979 CHEVROLET CAPRICE

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

    1980-1982 GMC CABALLERO

    • EngineType: V8
    • SubModel: DIABLO

    1968 CHEVROLET C20 PICKUP

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

    1973-1974 CHEVROLET NOVA

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

    1980 CHEVROLET IMPALA

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

    1965 CHEVROLET CHEVELLE

    • Liter: 4.6
    • EngineType: V8
    • SubModel: SS