Edelbrock 60139 - Cyl Head Perf RPM AMC 290 304 343 360 390 401 V-8 w/ Mach Exhst X-Over Complete
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Edelbrock 60139 - Cyl Head Perf RPM AMC 290 304 343 360 390 401 V-8 w/ Mach Exhst X-Over Complete
Cylinder Head - Performer RPM - Assembled - 2.020 / 1.600 in Valves - 185 cc Intake - 54 cc Chamber - 1.550 in Springs - Angle Plug - Aluminum - AMC V8 - Each
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
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