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Tag Archives: cathedral port

RHS® Intake & Cam Packages For GM LS Cathedral Port Engines

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Memphis, TN – Get huge power gains to maximize the performance potential of your GM LS Cathedral Port engine with these matched and dyno tested RHS® Performance Packages. Developed on the dyno to maximize horsepower and RPM without sacrificing low-end torque, the RHS® Intake & Cam Packages offer two stages for naturally aspirated setups and two stages for forced induction ... Read More »

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

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What happens when you upgrade from a factory camshaft to an aftermarket cam when you do the swap on a 408 stroker engine? Digging even deeper, what happens when you upgrade to an LS3 rectangular port style camshaft, on a stroker that’s equipped with cathedral-port cylinder heads? Let’s find out if this combination will work! When you look at the ... Read More »