1. Install new valve stem seals and then valves, springs and crackers. Lubricate the valve stems well with oil. In order for the crackers to stay in place while the springs are being compressed, fix them with grease. The springs can be installed either end up.
2. Lubricate the channels of the pushers. Fix the shims to their valve stems with grease and carefully reinstall the tappets. If new parts are installed so that the valve clearances are unknown, the thinnest washers available should be selected.
3. Install the camshaft in the head and lubricate its cams and necks with oil. Install the bearing caps, making sure that the middle caps are correctly seated. Gradually tighten the bearing cap nuts to the correct torque (see photo).
4. Install the camshaft thrust plate and tighten its mounting bolt.
5. Press the lubrication line into place.
6. Install a new strainer in the oil channel.
7. Install the cooling system outlet housing with a new gasket. Install the thermostat with its knee in the housing (also with new gasket).
8. Install the intake and exhaust manifolds with new gaskets and tighten their fasteners to the desired torque.
9. Install and secure the fuel pump with a new gasket and distributor. If before disassembly you did not make installation marks, you should install the distributor on the middle slot. The distributor roller drive is specially offset so that the distributor can only be installed in one position.
10. Install the carburetor and its heat shield.
11. Install a new oil seal on the end of the crankshaft from the sprocket side and drive it into place with a tube.
12. If it is planned to adjust the valve clearances at this stage, temporarily install the camshaft sprocket and place the cylinder head on wooden blocks so as not to damage the valves when they are opened.