Cam Tower Bolt Kit - Mitsubishi 4G63

The Cam Tower Bolt Kit - Mitsubishi 4G63 from ARP is designed for high-performance engine builders and motorsport enthusiasts who require reliability under extreme cylinder head loads. This precision fastener set replaces factory cam tower bolts with superior materials engineered to withstand high RPM operation, turbocharging, and forced induction applications.

Manufactured from ARP-grade chromoly steel and finished in black oxide coating, the Cam Tower Bolt Kit features an 8mm x 1.25 thread pitch with a 1.575-inch length. The design ensures precise torque application and repeatability, while the black oxide treatment provides corrosion resistance and a low-profile appearance in the engine bay.

Technicians and engine builders working with 4G63 platforms—including stroker builds, turbo upgrades, and high-boost applications—will appreciate the enhanced preload retention and reduced bolt stretch that ARP fasteners deliver. This kit is suitable for various Mitsubishi 4-cylinder configurations, but users should verify compatibility with their specific engine setup.