Edelbrock 60139 RPM AMC/ Jeep Cylinder Head With Exhaust Crossover Complete
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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.
Specifications
| Family | Performer |
| Push Rod Diameter | (Suggested) 0.3125 IN |
| Valve Stem Diameter | 0.34375 IN |
| Rocker Arm Stud Diameter | 0.375 IN |
| Valve Spring Maximum Lift | 0.580 IN |
| Deck Thickness | 0.625 IN |
| Valve Spring Diameter | 1.55 IN |
| Exhaust Valve Diameter | 1.60 IN |
| Valve Angle | 18 DD |
| Intake Runner Volume | 185 CCM |
| Intake Valve Diameter | 2.02 IN |
| Horsepower | 300-450 HJ |
| Head Casting Number | 31-6013 |
| Combustion Chamber Volume | 54 CCM |
| Exhaust Runner Volume | 70 CCM |
| Deck Height | 9.175 IN |
| Material | Aluminum |
| Valve Lock Material | Chromoly Steel |
| Guide Plate Material | Chromoly Steel |
| Construction Type | Complete |
| Seat Material | Ductile Iron |
| Seat Angle | Exhaust 45 deg/Intake 45 DD |
| Camshaft Type | Flat Tappet |
| Guide Plate Material | Hardened Steel |
| Guide Material | Manganese Bronze |
| Rocker Arms Included | No |
| Cylinder Head Gasket Included | No |
| Valve Cover Gasket Included | No |
| Mounting Hardware Included | No |
| CNC Ported | No |
| Grade Type | Performance |
| Series | Performer |
| Quantity | Sold Individually |
| Exhaust Port Location | Standard |
| Valve Lock Material | Steel |
| RGL | WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov. |
| Valve Spring Retainers Included | Yes |
| Valve Locks Included | Yes |
| Rocker Arm Studs/Bolts Included | Yes |
| Assembled | Yes |
| Guide Plates Included | Yes |
| Valve Springs Included | Yes |
| Valve Seals Included | Yes |
| Valves Included | Yes |
| EGR Port | Yes |
| Retainer Included | Yes |
β οΈ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.
Warranty: 12 Months
Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.
Shipping Information
Free shipping is available for eligible orders.
Shipping: For USA - Up to 50lbs.
Orders are processed during normal business days. Delivery dates may vary by carrier and destination.
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