McLaren CSO Engine Valve Covers

McLaren Valve Covers COMING SOON!

❌ The Problem: Early in our engine development program, we found something that stopped us in our tracks.

Wear marks on the underside of a factory valve cover. Marks that showed the camshaft was making contact.

So we dug deeper.

What we discovered wasn’t a one off issue. It was repeatable. Across every V8 McLaren engine we disassembled. Same wear pattern. Same internal contact. Same plastic material being removed and introduced into the oiling system.

The factory design mirrors the valve covers externally, but internally the stiffening ribs were not properly mirrored. On one bank, intake cam lobes can contact those ribs. Not catastrophic at first. But enough to create plastic debris that has to go somewhere.

➡️ Some gets caught in filtration.
➡️ Some circulates.
➡️ Some may contribute to wear patterns often labeled random or unexplained.

This isn’t speculation. It’s what we see in real world tear downs. Cannonball engineered a solution.

✅ Solution: CSO billet aluminum valve covers eliminate internal contact, remove plastic from the equation, and protect your engine’s oiling system. Designed from experience. Proven through inspection. Built to solve a problem owners never knew existed.

If you own a V8 McLaren, this is not optional protection. It is necessary. Cannonball Garage. We do not guess. We investigate, engineer, and solve. Click HERE to learn more.

Applications

• McLaren M838T
• McLaren M840T