Wiseco Mitsubishi 4G63 85.00 mm Bore 28.87 mm CH 0.00 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built for serious performance in your Mitsubishi 4G63 engine. The 85.00 mm bore size is a common upgrade for builders looking to increase displacement, and the 28.87 mm compression height is designed to work with specific crankshafts and connecting rods to achieve a desired compression ratio. Wiseco machines these pistons in the USA, ensuring precise tolerances for critical components like the ring grooves, which feature additional sealing enhancements to help manage combustion pressure.

Beyond the core forging, these pistons include an ArmorGlide skirt coating. This isn't just for looks; it helps reduce friction within the cylinder bore, leading to quieter operation and improved resistance to seizure under extreme heat and load. The crown is also fully machined, and the design incorporates forced pin oiling to ensure the piston pin stays well-lubricated, a crucial detail for sustained high-RPM operation. These are intended for heavy to severe duty race applications where durability and performance are paramount.

This set includes four pistons, premium rings, and is ready for installation. Remember that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.