JE Pistons Mitsubishi 4G63 EVO Forged Piston Kit 297051 - Set of 4

Engineered for high-demand racing applications, this JE Pistons forged piston kit (MPN: 297051) is designed specifically for the Mitsubishi 4G63 engine found in the Evolution series. Forged and machined 100% in the USA from high-tensile 2618 aluminum, these pistons provide the thermal stability and structural integrity required for high-boost and high-RPM environments.

This kit utilizes JE's proprietary Forged Side Relief (FSR) design. This architecture features a reduced skirt width to minimize friction and power loss, combined with a shorter wrist pin to shed reciprocating weight without compromising the piston's ability to handle extreme combustion pressures.

• Forged from 2618 aluminum alloy for superior strength-to-weight performance.
• Proprietary FSR forging design reduces friction and reciprocating mass for faster revving.
• Integrated accumulator groove helps manage combustion gas pressure to minimize ring flutter and improve seal.
• Skirt coating (application dependent) reduces wear on piston skirts and cylinder walls.
• Complete kit includes premium JE Pro Seal piston rings, high-quality wrist pins, and wire locks.
• 100% engineered, forged, and machined in the USA.