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.
Warranty
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1967	American Motors	Ambassador	880
1967	American Motors	Ambassador	990
1968-1970	American Motors	Ambassador	Base
1971-1974	American Motors	Ambassador	Brougham
1968-1971	American Motors	Ambassador	DPL
1968-1972	American Motors	Ambassador	SST
1967	American Motors	American	220
1967	American Motors	American	440
1967	American Motors	American	Rogue
1968-1970	American Motors	AMX	Base
1971,1973-1974	American Motors	Hornet	Base
1971	American Motors	Hornet	SC/360
1971-1974	American Motors	Hornet	Sportabout
1971-1972	American Motors	Hornet	SST
1971-1974	American Motors	Javelin	AMX
1968-1974	American Motors	Javelin	Base
1968-1972	American Motors	Javelin	SST
1970	American Motors	Javelin	SST Mark Donohue
1970	American Motors	Javelin	SST Trans Am
1971-1978	American Motors	Matador	Base
1974	American Motors	Matador	Brougham
1974	American Motors	Matador	X
1969	American Motors	Rambler	Hurst SC/Rambler
1969	American Motors	Rambler	Rogue
1967-1968	American Motors	Rebel	550
1967-1968	American Motors	Rebel	770
1969-1970	American Motors	Rebel	Base
1967-1970	American Motors	Rebel	SST
1970	American Motors	Rebel	The Machine
1974-1983	Jeep	Cherokee	Base
1981-1982	Jeep	Cherokee	Chief
1981	Jeep	Cherokee	Laredo
1983	Jeep	Cherokee	Pioneer
1974-1980	Jeep	Cherokee	S
1978-1980	Jeep	Cherokee	Wide Track
1975-1983	Jeep	Cherokee	Wide Track Chief
1979-1980	Jeep	Cherokee	Wide Track Golden Eagle
1980-1983	Jeep	Cherokee	Wide Track Laredo
1980	Jeep	Cherokee	Wide Track Limited
1984-1991	Jeep	Grand Wagoneer	Base
1984-1985	Jeep	Grand Wagoneer	Limited
1972-1973	Jeep	J-2500	Base
1972-1973	Jeep	J-2600	Base
1972-1973	Jeep	J-4800	Base
1974-1988	Jeep	J10	Base
1974-1988	Jeep	J20	Base
1972-1982	Jeep	Wagoneer	Base
1982-1983	Jeep	Wagoneer	Brougham
1973-1976	Jeep	Wagoneer	Custom
1979-1983	Jeep	Wagoneer	Limited