When checking a modification, it is imperative that the test procedure remains constant. The most common component, the cylinder head, is wide open to testing mistakes.

One of the big three, cylinder heads are a critical ingredient in any performance build. Working with the cam profile and intake manifold, the cylinder heads he ...

Dyno-testing cylinder heads and a cam upgrade on a 5.0L pushrod engine.

We dyno test a 6-liter LY6 LS engine with three stock-style cylinder heads from EngineQuest and a camshaft from Comp Cams.