Heavy Metal: Why Nitro Engine Valve Covers Are So Expensive

There’s nothing quite like the sensory overload and raw speed of nitro racing. When a nitro-burning engine experiences an unscheduled high-energy disassembly on the track, things get ugly fast, and parts go flying. That’s why nitro-powered vehicles are required to use the most advanced valve covers you’ll ever see.

Most valve covers aren’t made of anything exotic, billet aluminum is typically considered high-end. Nitro valve covers, however, are a completely different animal. These valve covers must be SFI-certified and are made from titanium. Why such an exotic material and the strict SFI certification requirement? The answer is simple: these valve covers serve as the last line of defense during a catastrophic failure, when valvetrain components attempt to achieve low orbit.

There are only two companies in the world that manufacture these valve covers, and each set is a true work of art. That premium material and craftsmanship come at a cost, each set runs around $8,500 and is made to order.

Check out this Tech Inspection video, where we talk with nitro Funny Car racer Buddy Hull as he explains what goes into producing these ultra-exotic valve covers.