Cylinder Head Assembly: Service and Repair

Fig. 2 Intake manifold tightening sequence. V8-318 (5.2L) & V8-360 (5.9L):

Fig. 4 Cylinder head bolt hole identification. Some 1980-87 Chrysler Corp. V8-318 (5.2L) engines:

Fig. 5 Cylinder head tightening sequence. V8-318 (5.2L) & V8-360 (5.9L):

V8-318 (5.2L) & V8-360 (5.9L)

Some V8-318 (5.2L) engines have cylinder head bolt holes drilled through the block into the water jacket in certain locations, Fig. 4. Refer to Fig. 4 and insert a screwdriver into the head bolt holes. If the screwdriver can be inserted at least two inches into a hole, that hole is open to the water jacket. Cylinder head bolts in these locations must have sealer 4057989 or equivalent applied to the threads to prevent engine coolant leakage. Be sure old sealer is cleaned from the threads before applying new sealer.

1. Disconnect battery ground cable and drain cooling system.
2. Remove alternator, then the carburetor air cleaner and fuel line.
3. Disconnect accelerator linkage.
4. Remove vacuum control hoses between carburetor and distributor.
5. Remove distributor cap with spark plug wires attached, then disconnect coil wires and heat indicator sending unit electrical connector.
6. Remove heater hoses and bypass hose.
7. Remove closed ventilation system, evaporation control system and cylinder head covers.
8. Remove intake manifold, ignition coil and carburetor as an assembly.
9. Remove exhaust manifolds.
10. Remove rocker shaft assembly and pushrods. During disassembly note location of pushrods so they can be installed in the same position.
11. Remove cylinder head attaching bolts, then the cylinder heads.
12. Reverse procedure to install noting the following:
a. Tighten head bolts in sequence shown in Fig. 5.
b. Tighten intake manifold bolts in sequence shown in Fig. 2.

Fig. 6 Cylinder head tightening sequence. V8-446 (7.3L):

V8-446 (7.3L)

Cylinder heads should be tightened down by starting from the center, working outward from side to side and to the ends in the sequence shown in Fig. 6.