Camshaft, Lifters and Push Rods: Description and Operation

The chilled cast-iron camshafts are retained by five aluminum alloy caps location numbers "0 to 4" for the intake camshaft and "5 to 9" for the exhaust, marked on the outer faces of the caps.

A machined flat near the front of each camshaft enables the camshafts to be locked during the valve-timing procedure.