Wiseco forged pistons Mitsubishi Lancer EVO 1-3 Eclipse 4G63 1GEN 85.5MM 8.3: 1 US-K559M855

Wiseco pistons are made of the highest quality aluminum, digitally machined using high quality technology, each piston has an optimized piston crown to improve filling and a specially selected wall shape for each application, resulting in less cylinder clearance and a lighter piston. : Pistons, rings, pins and pin protectors Suitable for: Mitsubishi Eclipse Lancer 4G63 1GEN Bore: 85.5MM Compression Ratio: 8.3: 1 Wiseco pistons are made from dedicated forgings produced in-house to give you a light weight piston with superior strength and optimal design. Being the multivalve piston technology leader, the line features specially designed valve pockets, complex dome and crown shapes, the steel nitride / napier xx rings and optimized skirt profiles. Most OEM pistons have pin offset to keep the piston quiet. Only Wiseco does this with forged pistons.Complete with rings, wristpins & locks, and specification sheets. Fits: Mitsubishi Eclipse Lancer 4G63 1GENBore size: 85.5MMCompression ratio: 8.3: 1 High-quality technology Each piston has an optimized piston crown for improved filling and a specially selected wall shape for each application, resulting in less cylinder clearance and a lighter piston. 4G63 1GEN Cylinder Bore: 85.5MM Compression Ratio: 8.3: 1