JE Pistons ACURA K209:1 86.5KIT Set of 4 Pistons

This JE Pistons K209:1 86.5KIT includes a full set of four forged pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings. These pistons are specifically made for Acura K Series engines with a 3.406-inch bore and a 9.00:1 compression ratio, featuring an inverted dome/dish design. They are forged in the USA using 2618 aluminum, a material known for its high tensile strength, making it well-suited for high-demand performance applications.

JE Pistons applies over 75 years of experience to their forged racing pistons, and this set is no exception. The proprietary Forged Side Relief (FSR) forging design helps minimize friction and power loss by reducing skirt width, while also saving weight with a shorter wrist pin. Depending on the specific application, these pistons may also feature an accumulator groove to reduce combustion gas pressure, which helps prevent ring flutter and improves ring seal for consistent power. Additionally, a skirt coating, if included for your application, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

These pistons are engineered and machined 100% in the USA, designed specifically for each engine and use application to provide optimized performance and durability. They are a solid option for those looking to build a high-performance engine where reliability and power are critical. Please note that this kit is not CARB approved and cannot be shipped to California.