My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Edelbrock 60139 Performer RPM Cylinder Head for AMC 343-401 V8

(Jeep Cherokee 1974-83, Grand Wagoneer 1984-91, J10 1974-88, Wagoneer 1972-83, J20 1974-88, J-2500 1972-73, J-4800 1972-73, J-2600 1972-73 + 8 more models)

Part of: Edelbrock RPM Cylinder Head

Other options in this family: Edelbrock 60779 Edelbrock 61625 Edelbrock 61629 Edelbrock 60925 Edelbrock 60829

Manufacturer

Picture for manufacturer Edelbrock

Part Number

60139
7 reviews
Sale Price

$1,544.95

In Stock (6)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Edelbrock 60139 Performer RPM cylinder head delivers bolt-on performance for 1967-91 AMC V8 engines including 343, 360, 390, and 401 cubic inch applications found in AMX, Javelin, and Jeep vehicles. Engineered to improve airflow and power output while maintaining emissions compliance, this complete aluminum head represents a significant upgrade over factory iron castings.

Key Features:

  • Dual-drilled intake flange accommodates both early and late model intake bolt patterns (1967-91)
  • Includes adjustable rocker studs and guide plates configured for small-block Ford style 1.6:1 ratio adjustable rockers
  • 45-degree intake seat angle provides superior mid- to high-lift airflow compared to stock 30-degree angle
  • Larger-than-stock valve springs support most high-lift camshaft profiles
  • Dual-quench combustion chambers produce approximately 9.5:1 compression ratio in 401 V8 engines
  • Stock-location ports ensure compatibility with standard intake manifolds and exhaust headers
  • Direct bolt-on for 1970-later engines with 1/2-inch head bolts; includes step-dowel pins for pre-1970 applications
  • Machined heat crossover passage for 50-state emissions legal operation

This cylinder head combines improved performance with bolt-on convenience, eliminating the need for custom machining or specialized components. The optimized port design and valve seat geometry enhance volumetric efficiency throughout the RPM range, making it an ideal choice for street performance and mild race applications.

Products specifications

Fits

Jeep Cherokee 1974-83, Grand Wagoneer 1984-91, J10 1974-88, Wagoneer 1972-83, J20 1974-88, J-2500 1972-73, J-4800 1972-73, J-2600 1972-73; American Motors Javelin 1968-74, AMX 1968-70, Hornet 1971-74, Ambassador 1967-74, American 1967 + 3 more models

Deck Thickness

0.625

Exhaust Runner Volume

70

Guide Plates Included

Yes

Guide Plate Material

Hardened Steel

Rocker Stud Diameter

0.375

Intake Valve Diameter

2.02

Camshaft Type

Flat Tappet

Exhaust Valve Diameter

1.60

Valve Spring Diameter

1.55

Material

Aluminum

Valve Stem Diameter

0.34375

EGR Port

Yes

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.

Push Rod Diameter

(Suggested) 0.3125

Seat Material

Ductile Iron

Valve Angle

18

Series

Performer

Grade Type

Performance

Exhaust Port Location

Standard

Retainer Included

Yes

Intake Runner Volume

185

Valve Spring Maximum Lift

0.580

Valve Included

Yes

Combustion Chamber Volume

54

CNC Ported

No

Horsepower

300-450

Family

Performer

Seat Angle

Exhaust 45 deg/Intake 45

Quantity

Sold individually

Valve Springs Included

Yes

Construction Type

Complete

Guide Material

Manganese Bronze

Rocker Arm Stud Diameter

0.375

Could show shipping eta is all.

comment to come after delivery

I never received order confirmation by email. Call 2 days later to make sure order went through. A courteous Customer Service rep told me that order has arrived and package was in shipping. They would send tracking number when one is assigned. Never received one. Pleasantly surprised though when package arrived in 3 days in good order.

Quick

Definitely would buy from again...thank you...

Everything was great will likely shop again.

Git

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy