Removal and Installation

1. Disconnect battery ground cable and drain cooling system.
2. Remove alternator and closed crankcase ventilation system, then disconnect evaporation control system.
3. Remove air cleaner.

Fuel Pressure Regulator Location:

Fuel Pressure Release Procedure - Typical:

4. Release fuel system pressure as follows:
a. Remove the negative battery cable, and remove the fuel tank fill cap.
b. Place sufficient shop towels under the pressure test port (schrader valve) on the fuel rail.
c. Remove the cap from the pressure test port on the fuel rail.
d. Using an appropriate fuel pressure gauge hose, place one end of hose in an approved container and screw the other end of the hose onto the test port to relieve fuel pressure. Absorb any spilled fuel with shop towels.
e. Install cap on test port.

5. Disconnect fuel lines, accelerator linkage, speed control and transmission kickdown cables, then remove throttle return spring.
6. Remove distributor cap and wires, then disconnect coil and heat indicator sending unit wires as well as heater and bypass hoses.
7. Remove cylinder head cover and gasket, then the intake manifold and throttle body. Discard flange side, front and rear crossover gaskets.
8. Remove exhaust manifolds.
9. Remove rocker arm assemblies and push rods.
NOTE:
Identify pushrods to ensure original locations installation.

10. Remove cylinder head bolts, and cylinder heads. Discard head gasket.
11. Reverse procedure to install, noting the following:

Fig. 13 Cylinder Head Bolt Tightening Sequence:

Fig. 14 Cylinder Head Bolt Tightening Sequence:

a. Torque cylinder head bolts to 50 ft. lbs., in sequence. Finally, torque cylinder head bolts to 105 ft. lbs.
b. When tightening rocker arm bolts, make sure piston is not at Top Dead Center (TDC).
c. Allow hydraulic roller tappets five minutes to bleed down before rotating or cranking engine.