Manley Mitsubishi 4G63 2.0L -2.5cc 86.5mm Bore 1.375in CH Platinum Series Flat Top Piston - Set of 4

When you're rebuilding the heart of your performance Mitsubishi, especially those popular 4G63 engines found in vehicles like the Eagle Talon, Mitsubishi Eclipse, and Lancer, choosing the right pistons is critical. These Manley Platinum Series pistons are built for those who demand reliability and performance from their engine internals. They feature a flat-top design with a -2.5cc dish, which is a common choice for naturally aspirated or mild turbo builds where you want to maintain a specific compression ratio. The 86.5mm bore size is a standard upgrade for many 4G63 applications, allowing for a slight increase in displacement over stock.

Manley is well-known for its robust engine components, and this set of four pistons is no exception. They are forged from high-strength aluminum alloy, a process that creates a denser, more durable piston capable of withstanding the higher pressures and temperatures found in performance engines. This forged construction offers improved resistance to detonation and fatigue compared to cast pistons. The 1.375 inch compression height is also a key measurement, ensuring proper deck height and valve-to-piston clearance when paired with the correct connecting rods and crankshaft. This attention to detail in design and manufacturing is what makes Manley a popular choice for serious engine builders.

This set includes four pistons, ready for your machine shop to hone the cylinders to the precise 86.5mm bore. Remember to consult your engine builder or a trusted mechanic for the exact specifications and assembly procedures required for your specific build. While these pistons are designed for a wide range of 4G63 applications, including the Mitsubishi Galant and Montero Sport, it's always best to verify compatibility with your exact engine code and build plan.