The 350 small block engine first appeared as a high-performance V-8 option for the 1967 Chevy Camaro. In 1968, it could be ordered with the Chevy Nova. In 1969, any Chevy vehicle could be ordered with a 350 engine. Spark plugs for the 350 engine are on the sides of the engine, outside the cylinder heads. Depending on the year of the engine, the spark plugs may stick straight out or set at a 35-degree angle. Eight spark plugs are required to keep the engine running smoothly.

Spark Plug Gap

Spark plugs for the Chevy 350 engine are readily available from any auto parts store. Spark plugs come pre-gapped, but you should always verify the gap with a spark plug gap tool. The gap for a 350 small block should be 0.035 inches.