JE Pistons HONDA B18C1 81.5 KIT Set of 4 Pistons

Forged from 2618 aluminum, these JE Pistons are built for high-demand performance applications. This set is specifically designed for the Honda B18C1 engine, with a bore size of 3.209 inches (81.5mm) and a flat-top design that results in a 10.00:1 compression ratio. JE Pistons brings over 75 years of experience to the table, engineering and machining these pistons entirely in the USA to ensure the ultimate combination of durability and performance for your build.

JE Pistons utilize a proprietary Forged Side Relief (FSR) forging design. This design helps minimize friction and power loss by reducing skirt width, and it also saves 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 delivery. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

This kit includes everything you need to get your engine rebuilt: four forged pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings. These pistons are made 100% in the USA, ensuring a well-built product ready for the track or the street. Please note that this part is not CARB approved and cannot be shipped to California.