Special Order
The Edelbrock #60139 Performer RPM Cylinder Heads are designed as a bolt-on performance upgrade for any 1967-91 AMX, Javelin or Jeep with a 343, 360, 390 or 401 AMC V8 engine.
The Edelbrock #60139 Performer RPM cylinder head is designed as a bolt-on performance upgrade for any 1967-91 AMX, Javelin or Jeep with a 343, 360, 390 or 401 AMC V8 engine. They include adjustable rocker studs and guide plates set-up for use with small-block Ford style adjustable 1.6:1 ratio rockers. The intake flange is dual-drilled to accommodate early and late model intake bolt patterns, covering 1967-91. A Complete head includes larger than- stock valve springs to handle most high-lift cams. They feature stock location ports for compatibility with standard manifolds and headers. A direct bolt-on for 1970 and later engines with 1/2" head bolts, This head includes step-dowel pins for pre-1970 engines. Their dual-quench combustion chambers produce approximately 9.5:1 compression in 401 V8 engines. The 45deg intake seat angle offers improved mid- to high-lift flow over the stock 30deg angle. The Edelbrock #601139 Performer RPM cylinder head has a machined heat crossover for 50-state emissions legal performance.
The Edelbrock #60139 Performer RPM cylinder head is designed as a bolt-on performance upgrade for any 1967-91 AMX, Javelin or Jeep with a 343, 360, 390 or 401 AMC V8 engine. They include adjustable rocker studs and guide plates set-up for use with small-block Ford style adjustable 1.6:1 ratio rockers. The intake flange is dual-drilled to accommodate early and late model intake bolt patterns, covering 1967-91. A Complete head includes larger than- stock valve springs to handle most high-lift cams. They feature stock location ports for compatibility with standard manifolds and headers. A direct bolt-on for 1970 and later engines with 1/2" head bolts, This head includes step-dowel pins for pre-1970 engines. Their dual-quench combustion chambers produce approximately 9.5:1 compression in 401 V8 engines. The 45deg intake seat angle offers improved mid- to high-lift flow over the stock 30deg angle. The Edelbrock #601139 Performer RPM cylinder head has a machined heat crossover for 50-state emissions legal performance.
- 50-State Street Legal Aluminum Cylinder Head
- High Pressure Fuel Regulator
- 54cc Dual-Quench Combustion Chamber
- Offers Improved Mid To High Lift Flow
Application Summary:
| Year | Make/Model |
|---|---|
| 1967-1974 | American Motors Ambassador |
| 1967 | American Motors American |
| 1968-1970 | American Motors AMX |
| 1971-1974 | American Motors Hornet |
| 1968-1974 | American Motors Javelin |
| 1971-1978 | American Motors Matador |
| 1969 | American Motors Rambler |
| 1967-1970 | American Motors Rebel |
| 1974-1983 | Jeep Cherokee |
| 1984-1991 | Jeep Grand Wagoneer |
| 1972-1973 | Jeep J-2500 |
| 1972-1973 | Jeep J-2600 |
| 1974-1988 | Jeep J10 |
| 1974-1988 | Jeep J20 |
| 1972-1983 | Jeep Wagoneer |