CP Piston & Ring Set for Mitsubishi 4G63 2G/Evo 8/9 -Bore (85.50mm)-Size (0.5mm)-Stroke (100)-Set 4

When you're rebuilding the heart of your Mitsubishi 4G63 engine, especially for a 2nd Gen or Evo 8/9, you want parts you can trust. This set from CP Pistons includes four forged pistons and their matching rings, ready to go into your engine. These are specifically sized for an 85.50mm bore and are 0.5mm undersize, meaning they're designed to fit into a block that's been machined to that specific dimension. The 100mm stroke is also a key measurement for this application.

CP Pistons are well-known in performance circles for their robust construction. These aren't your average cast pistons; they're forged from high-strength aluminum alloy, which gives them a significant advantage in durability and resistance to detonation, especially when you're pushing your engine hard. The included rings are designed to seal properly against the cylinder wall, helping to maintain compression and keep oil where it belongs. This set is built for demanding applications where reliability and performance are critical.

This set is intended for engine builders and serious enthusiasts looking for a solid foundation for their 4G63 build. Because these are a specific size (0.5mm undersize), it's crucial to ensure your engine block has been machined to match this specification. If you're not familiar with engine machining or piston installation, it's always best to consult with a professional engine builder to ensure everything is done correctly for optimal performance and longevity.