Way back in 2015, we performed the mother of all LS intake tests by running 20 different intakes designed for cathedral-port heads . That test included every cathedral-port intake we could get our ...

Stroked 416-inch LS3. Eagle forged rotating assembly with Mahle pistons. Edelbrock Super Victor single-plane intake with Holley Ultra-HP 850 CFM carburetor. Holley valve covers, Holley oil pan. COMP ...

A stock LS3 rec-port intake manifold is hard to beat and only costs $299. When Chevy went back to the drawing board after the success of the cathedral-port Gen III LS1 small-block V-8, it realized ...

Obviously, these valve-control-related issues, associated with insufficient valvespring pressure, are the reason why camshaft manufacturers offer valvespring upgrades. The obvious answer might seem to ...