This new Performer cylinder head is designed as a bolt-on performance upgrade for 1987-2006 Jeeps with a 4.0L inline six cylinder engine. It features all-new better flowing intake and exhaust ports, a modern combustion chamber design with back cut and swirl polished valves. It retains the stock valve angle, pushrod length and valve cover bolt rail height for use with factory components and off the shelf accessories. It also features larger reinforced rocker bosses for improved strength at high RPM and Heli-Coil® threaded inserts in the manifold bolt holes for added strength. A 3/4" deck throughout the head also provides improved durability. It's machined to accept either distributor or coil pack ignition.
CARB EO # D-215-94
50 State Legal - CARB E.O. Number D-215-94
50 State Legal - CARB E.O. Number D-215-94
Engine Size: 4.0L I-6, 4.2L 258ci I-6
Engine Fuel: Gasoline
1983 Jeep CJ-5
1982 Jeep CJ-5
1981 Jeep CJ-5
1980 Jeep CJ-5
1979 Jeep CJ-5
1978 Jeep CJ-5
1977 Jeep CJ-5
1976 Jeep CJ-5
1986 Jeep CJ-7
1985 Jeep CJ-7
1984 Jeep CJ-7
1983 Jeep CJ-7
1982 Jeep CJ-7
1981 Jeep CJ-7
1980 Jeep CJ-7
1979 Jeep CJ-7
1978 Jeep CJ-7
1977 Jeep CJ-7
1976 Jeep CJ-7
1985 Jeep CJ-8
1984 Jeep CJ-8
1983 Jeep CJ-8
1982 Jeep CJ-8
1981 Jeep CJ-8
2006 Jeep Wrangler (TJ)
2005 Jeep Wrangler (TJ)
2004 Jeep Wrangler (TJ)
2003 Jeep Wrangler (TJ)
2002 Jeep Wrangler (TJ)
2001 Jeep Wrangler (TJ)
2000 Jeep Wrangler (TJ)
1999 Jeep Wrangler (TJ)
1998 Jeep Wrangler (TJ)
1997 Jeep Wrangler (TJ)
1995 Jeep Wrangler (YJ)
1994 Jeep Wrangler (YJ)
1993 Jeep Wrangler (YJ)
1992 Jeep Wrangler (YJ)
1991 Jeep Wrangler (YJ)
1990 Jeep Wrangler (YJ)
1989 Jeep Wrangler (YJ)
1988 Jeep Wrangler (YJ)
1987 Jeep Wrangler (YJ)
2006 Jeep Wrangler Unlimited (LJ)
2005 Jeep Wrangler Unlimited (LJ)
2004 Jeep Wrangler Unlimited (LJ)
CARB EO # D-215-94
CARB Notice
Learn More
The Performer Jeep 4.0L is designed with 1991-2006 4.0L intake port locations and must be used with 1991-2006 intake manifold.
The Performer Jeep 4.0L is designed with 1991-98 4.0L exhaust port locations and must be used with 1991-98 factory header or aftermarket exhaust header.
This cylinder head will also fit 1976-90 AMC 4.2L engines with no modification to the water jacket and the appropriate intake manifold and header combination.
This cylinder head is pending 50-state emission legal for 4.0L engines when used with factory fuel injection components. It's also pending 50-state emission legal for AMC 4.2L engines when used with a Mopar Fuel Injection Conversion Kit (E.O. Number D-265-21).
- Designed for 1987-2006 Jeep 4.0L inline six cylinder engines
- Can be used with 1976-90 AMC 4.2L engines with no modification to the water jacket and the appropriate intake manifold and header combination
- Available with 55cc combustion chambers, 144cc intake and 77cc exhaust runners, 1.91" intake and 1.50" exhaust valve sizes for up to 0.540" max lift
- Sold bare (#50159) and complete (#50169) with springs engineered for hydraulic flat tappet camshaft applications
- Combustion chamber volume: 55cc
- Intake runner volume: 144cc
- Exhaust runner volume: 77cc
- Intake valve diameter: 1.91"
- Exhaust valve diameter: 1.50"
- Valve stem diameter: 5/16"
- Valve guides: Manganese bronze
- Deck thickness: .750"
- Valve spring diameter: 1.26"
- Valve spring maximum lift: .540"
- Rocker stud: N/A
- Guideplate: N/A
- Pushrod diameter: N/A
- Valve angle: 10° (stock)
- Exhaust port location: Stock (1991-98)
- Spark plug fitment: 14mm x 3/4 reach, gasket seat
Specs
Fitment
Jeep CJ-5
Jeep CJ-7
Jeep CJ-8
Jeep Wrangler (TJ)
Jeep Wrangler (YJ)
Jeep Wrangler Unlimited (LJ)
Options
Edelbrock Performer Aluminum Cylinder Head Options
| Part Number | Catalog # | Price | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 50169 | 51108-2001 | Complete - with Valvetrain | $1,787.99 |
Description
This new Performer cylinder head is designed as a bolt-on performance upgrade for 1987-2006 Jeeps with a 4.0L inline six cylinder engine. It features all-new better flowing intake and exhaust ports, a modern combustion chamber design with back cut and swirl polished valves. It retains the stock valve angle, pushrod length and valve cover bolt rail height for use with factory components and off the shelf accessories. It also features larger reinforced rocker bosses for improved strength at high RPM and Heli-Coil® threaded inserts in the manifold bolt holes for added strength. A 3/4" deck throughout the head also provides improved durability. It's machined to accept either distributor or coil pack ignition.
CARB EO # D-215-94
50 State Legal - CARB E.O. Number D-215-94
50 State Legal - CARB E.O. Number D-215-94
Engine Size: 4.0L I-6, 4.2L 258ci I-6
Engine Fuel: Gasoline
1983 Jeep CJ-5
1982 Jeep CJ-5
1981 Jeep CJ-5
1980 Jeep CJ-5
1979 Jeep CJ-5
1978 Jeep CJ-5
1977 Jeep CJ-5
1976 Jeep CJ-5
1986 Jeep CJ-7
1985 Jeep CJ-7
1984 Jeep CJ-7
1983 Jeep CJ-7
1982 Jeep CJ-7
1981 Jeep CJ-7
1980 Jeep CJ-7
1979 Jeep CJ-7
1978 Jeep CJ-7
1977 Jeep CJ-7
1976 Jeep CJ-7
1985 Jeep CJ-8
1984 Jeep CJ-8
1983 Jeep CJ-8
1982 Jeep CJ-8
1981 Jeep CJ-8
2006 Jeep Wrangler (TJ)
2005 Jeep Wrangler (TJ)
2004 Jeep Wrangler (TJ)
2003 Jeep Wrangler (TJ)
2002 Jeep Wrangler (TJ)
2001 Jeep Wrangler (TJ)
2000 Jeep Wrangler (TJ)
1999 Jeep Wrangler (TJ)
1998 Jeep Wrangler (TJ)
1997 Jeep Wrangler (TJ)
1995 Jeep Wrangler (YJ)
1994 Jeep Wrangler (YJ)
1993 Jeep Wrangler (YJ)
1992 Jeep Wrangler (YJ)
1991 Jeep Wrangler (YJ)
1990 Jeep Wrangler (YJ)
1989 Jeep Wrangler (YJ)
1988 Jeep Wrangler (YJ)
1987 Jeep Wrangler (YJ)
2006 Jeep Wrangler Unlimited (LJ)
2005 Jeep Wrangler Unlimited (LJ)
2004 Jeep Wrangler Unlimited (LJ)
CARB EO # D-215-94
CARB Notice
Learn More
The Performer Jeep 4.0L is designed with 1991-2006 4.0L intake port locations and must be used with 1991-2006 intake manifold.
The Performer Jeep 4.0L is designed with 1991-98 4.0L exhaust port locations and must be used with 1991-98 factory header or aftermarket exhaust header.
This cylinder head will also fit 1976-90 AMC 4.2L engines with no modification to the water jacket and the appropriate intake manifold and header combination.
This cylinder head is pending 50-state emission legal for 4.0L engines when used with factory fuel injection components. It's also pending 50-state emission legal for AMC 4.2L engines when used with a Mopar Fuel Injection Conversion Kit (E.O. Number D-265-21).
- Designed for 1987-2006 Jeep 4.0L inline six cylinder engines
- Can be used with 1976-90 AMC 4.2L engines with no modification to the water jacket and the appropriate intake manifold and header combination
- Available with 55cc combustion chambers, 144cc intake and 77cc exhaust runners, 1.91" intake and 1.50" exhaust valve sizes for up to 0.540" max lift
- Sold bare (#50159) and complete (#50169) with springs engineered for hydraulic flat tappet camshaft applications
- Combustion chamber volume: 55cc
- Intake runner volume: 144cc
- Exhaust runner volume: 77cc
- Intake valve diameter: 1.91"
- Exhaust valve diameter: 1.50"
- Valve stem diameter: 5/16"
- Valve guides: Manganese bronze
- Deck thickness: .750"
- Valve spring diameter: 1.26"
- Valve spring maximum lift: .540"
- Rocker stud: N/A
- Guideplate: N/A
- Pushrod diameter: N/A
- Valve angle: 10° (stock)
- Exhaust port location: Stock (1991-98)
- Spark plug fitment: 14mm x 3/4 reach, gasket seat
Specs
Fitment
Jeep CJ-5
Jeep CJ-7
Jeep CJ-8
Jeep Wrangler (TJ)
Jeep Wrangler (YJ)
Jeep Wrangler Unlimited (LJ)
Options
Edelbrock Performer Aluminum Cylinder Head Options
| Part Number | Catalog # | Price | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 50169 | 51108-2001 | Complete - with Valvetrain | $1,787.99 |
Reviews
