AMC 360 Head Bolt Torque Sequence & Specifications

About the AMC 360 Engine

The AMC 360 engine is a V8 engine that was produced by the American Motors Corporation (AMC) from 1970 to 1991. It was a popular engine choice for various AMC vehicles, including the Jeep CJ, Jeep Wagoneer, and AMC Javelin. The AMC 360 engine is known for its durability, power, and versatility. It has a displacement of 5.9 liters (360 cubic inches) and features a cast-iron block and cylinder heads. Proper maintenance and torqueing of the head bolts are essential to ensure the engine’s optimal performance and longevity.

AMC 360 Head Bolt Torque Sequence

When installing or reassembling the cylinder heads on an AMC 360 engine, it is crucial to follow the correct torque sequence to ensure proper and even clamping force. The head bolt torque sequence is as follows:

Step 1:

Tighten all head bolts to 50 ft. lbs. (68 Nm) in the numerical order shown in the table below.

Step 2:

Repeat the tightening process, increasing the torque to 85 ft. lbs. (115 Nm) in the same numerical order.

Step 3:

Finally, tighten the head bolts to their final torque of 100 ft. lbs. (136 Nm) in the same numerical order.

AMC 360 Head Bolt Torque Specifications

To ensure proper torqueing of the head bolts, it is important to use the correct specifications. The table below provides the head bolt torque specifications for the AMC 360 engine in both foot-pounds (ft. lbs.) and Newton-meters (Nm):

Following the correct torque sequence and specifications is vital to ensure the proper clamping force and integrity of the cylinder head gasket. It is recommended to use a torque wrench and tighten the head bolts gradually in the specified order to achieve the desired torque.