RHS Pro Action GM LS Cathedral Port Cylinder Head; Bare (13-19 6.0L Sierra 2500 HD)

Leak-Free Fitment. The days of searching for a usable head at your junkyard are long gone. RHS’s new LS Cathedral Port Cylinder Head for the Sierra 2500 is a great alternative in terms of power production and fitment. Every head is manufactured using Clean Cast Technology to eliminate installation issues.

Power You Can Feel. Want to increase horsepower? How about an enhanced throttle response? Now you can have both thanks to the Pro Action GM LS Cathedral Port Cylinder Head. The Silverado 2500 was already a powerful truck. It’s time to take it to the next level.

Amazing quality. Racing Head Serice uses the best quality aluminum on the Pro Action GM LS Cathedral Port Cylinder Heads. Valve guides are made using a unique blend of bronze and manganese to prolong lifespan and durability.

Better Cooling. One look at the Pro Action GM LS Cathedral Port Cylinder Head and you’ll realize they are special. Internally, the smoother finish will help drop engine temps and increase power on your 6.0L Silverado 2500.

Unique Spark Plug Pocket Design. Factory spark plugs have a tapered seat. High-performance versions usually come with a flat-style seat. The Pro Action GM LS Cathedral Port Cylinder Head from RHS can accommodate both. These heads are a must-have for those planning on more power.

Specifically Designed for the 6.0L. Pro Action GM LS Cathedral Port Cylinder Heads are engineered for the 6.0L LS-based engine. RHS has engineered them to precisely fit 2013-2019 Silverado 2500 HDs. Don’t take your chances with used parts that may or may not be compatible. Do it right the first time.

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