Speed Secrets: Cathedral vs Rectangular Port Cam For Your 408 Stroker Engine Cam Swap

Although we all know how important it is for a camshaft to be matched to the flow rating of the heads, what kind of roll does port shape play and is it really necessary to take it into consideration. In this episode of Speed Secrets, Richard Holdener puts a rectangular port camshaft to the test on a LS based 408 stroker equipped with cathedral port heads.

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