So, the engine top end, is usually everything above the cylinder head gasket. This would include everything, in engines that have a overhead camshaft (OHC).

Pushrods On G.M. 3.1-3.4 Engines – This Is Still Going On !!!
Exhaust and Intake Pushrods on G.M. 3.1 and 3.4 engines are different lengths. Quite often I am seeing bent pushrods and valves when they are mixed up. Consequently, Exhaust pushrods on G.M. 3.1 and […]