CP Piston & Ring Set for Mitsubishi 4G63 2G/Evo 8/9 - Bore (85.0mm)-Size (STD)-Stroke (100)-Set of 4

This package includes a complete set of four forged pistons and matching piston rings, specifically designed for the Mitsubishi 4G63 engine found in the 2G DSM and Evolution 8/9 models. These pistons are built to a standard bore size of 85.0mm, with a 100mm stroke, making them a direct replacement for stock or a foundation for performance builds. If you're rebuilding the top end of your 4G63, especially for a performance application, forged pistons are a critical component for handling increased cylinder pressures and temperatures.

CP Pistons are well-known for their robust construction. These pistons are forged from high-strength aluminum alloy, a process that creates a denser, stronger, and more durable piston than cast alternatives. This inherent strength is essential for engines that see higher boost levels or more aggressive tuning. The set comes complete with precision-matched rings, which are vital for proper cylinder sealing, oil control, and efficient combustion. Having the correct bore size and stroke ensures these pistons will integrate smoothly into your engine's existing configuration.

When undertaking an engine rebuild, especially with performance goals, using quality internal components like these forged pistons is key to achieving reliability and power. Ensure you have the necessary supporting components and follow manufacturer guidelines for installation to get the most out of this set.