Quicksilver Cylinder Heads

Quicksilver cylinder heads are ideal replacement components for many GM-style 4-cylinder and V8 engines in marine, circle track racing, RV, truck, and hard-to-find industrial applications. With exclusive Black-X valves, they are designed to be the most robust, durable, and toughest service cylinder heads available. Select the cylinders heads designed to fit your engine.

Features and benefits:

* Thicker castings
* Improved combustion chamber for better burn characteristics
* Premium springs and hardened seats on the intake and exhaust ports
* Quicksilver exclusive Black-X valves
-- Composite valves
-- Stainless steel treated with a cobalt-chromium alloy and black plasma nitriding
-- Contribute to a 42 percent reduction in valve wear compared to traditional stainless steel valves with hardened seats
-- Longer engine life, especially in the presence of modern ethanol-blended fuels
* Backed with a 1-year limited warranty

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