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Cylinder Head

When it comes to internal combustion engines flow is king and cylinder heads are the gate keepers. Performance cylinder heads utilize bigger valves and ports, and are optimized to provide the best flow possible.



    • ATK NORTH AMERICA Cylinder Head

      • Fits 1997 to 1999 TJ Wrangler
      • Fits 1997 to 1999 XJ Cherokee
      • Fits 1996 to 1998 ZJ Grand Cherokee
      • 4.0L 6 cylinder engines
      • Head cast #0630
    • ATK NORTH AMERICA Cylinder Head

      • Fits 2000 to 2006 TJ Wrangler, Rubicon and Unlimited
      • Fits 2000 to 2001 XJ Cherokee
      • Fits 1999 to 2004 WJ Grand Cherokee
      • 4.0L 6 cylinder engines
      • Head cast #0331
      • Complete with valves and springs
    • Crown Automotive Cylinder Head

      • Fits 1987 to 1993 YJ Wrangler, XJ Cherokee and MJ Comanche
      • With 2.5L engine with carburetor
      • Bare cylinder head
    • Edelbrock Jeep 4.0L Performer Cylinder Head, Bare

      • Fits 1987 to 2006 Jeep with 4.0L 6 cylinder engine
      • 1999-2006 requires modifications to engine configuration
      • Bare
      • Better flowing intake/exhaust ports
      • Modern combustion chamber design
      • Stainless steel back-cut and swirl polished valves for improved flow performance
      • Stock valve angle, push rod length and valve cover bolt pattern for use with factory components and off the shelf accessories
      • Larger reinforced rocker bosses for improved strength at high RPM
      • Heli-Coil® threaded inserts in the intake manifold bolt holes for added strength
      • 3/4" deck throughout the head promotes stiffness and durability
      • Accept both distributor or coil pack ignition
      • Weights half as much as the OEM cast iron cylinder head
      • Pending 50-state emission legal
    • Edelbrock Jeep 4.0L Performer Cylinder Head, Complete

      • Fits 1987 to 2006 Jeep with 4.0L 6 cylinder engine
      • 1999-2006 requires modifications to engine configuration
      • Complete with springs for flat tappet cam
      • Better flowing intake/exhaust ports
      • Modern combustion chamber design
      • Stainless steel back-cut and swirl polished valves for improved flow performance
      • Stock valve angle, push rod length and valve cover bolt pattern for use with factory components and off the shelf accessories
      • Larger reinforced rocker bosses for improved strength at high RPM
      • Heli-Coil® threaded inserts in the intake manifold bolt holes for added strength
      • 3/4" deck throughout the head
      • Accept both distributor or coil pack ignition
      • Weights half as much as the OEM cast iron cylinder head
      • Pending 50-state emission legal
    • ATK NORTH AMERICA Cylinder Head

      • Fits 1988 to 1990 YJ Wrangler
      • Fits 1987 J-series truck
      • 4.2L 6 cylinder engines
      • Complete with valve and springs
    • ATK NORTH AMERICA Cylinder Head

      • Fits 1987 to 1997 Wrangler
      • Fits 1986 CJ
      • Fits 1986 to 1997 XJ Cherokee
      • 2.5L 4 cylinder engines
      • Head cast # 403, 117 or 893
      • Complete with valve and springs
    • ATK NORTH AMERICA Cylinder Head

      • Fits 1999 to 2006 Grand Cherokee
      • Fits 2006 to 2010 XK Commander
      • 4.7L V8
      • Right head
      • Head cast #0802AC
      • Complete head including camshaft
    • ATK NORTH AMERICA Cylinder Head

      • Fits 1999 to 2005 Grand Cherokee
      • 4.7L V8
      • Left head
      • Complete head including camshaft
    • ATK NORTH AMERICA Cylinder Head

      • Fits 1983 to 1985 CJ
      • Fits 1984 to 1985 XJ Cherokee
      • 2.5L 4 cylinder engines
      • Head cast# 893, 117, 403,6 45 or 684
      • Complete with valve and springs
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