The first application for this 350-cubic-inch (5.7-liter) V8, a small-block engine, was in the 1967 Chevrolet Camaro. It was offered as an optional engine upgrade that produced 295 horsepower. These Camaros could be identified by their SS 350 badge and their "bumblebee" paint scheme.
An engine's cylinder head, also called simply the head, rests on the engine's cylinders on the cylinder block. The entire component consists of a platform that includes spark plugs and valves.
The cylinder head bolts to the engine block in three steps performed in a helical sequence. The bolts receive first 25 foot-pounds of torque, then 45 foot-pounds and finally 65 foot-pounds of torque.
A helical sequence involves beginning torquing with the center-most bolts on the cylinder head, and working outward in both directions evenly, so that the torque is applied uniformly to the component. Each step must be applied to all bolts before the next step is begun in the exact same order, and 15 minutes should elapse between each step.
In this engine, the exhaust manifold requires 20 foot-pounds to bolt to the cylinder head. The intake-manifold-to-cylinder-head bolts require 33 foot-pounds of torque. The 5/8 spark plug requires 15 foot-pounds and the 13/16 spark plug requires 22 foot-pounds of torque to attach to the head.
