JE Pistons BMW S50B32 Euro Kit 86.5mm Bore -5.2cc Dome 0.827in Pin Diameter - Set of 6 Pistons

Built from 2618 aluminum, these JE Pistons are forged in the USA to handle the high tensile strength needed for demanding performance applications. This specific kit is designed for the BMW S50B32 Euro engine, featuring an 86.5mm bore and a -5.2cc dome that contributes to a 12.50:1 compression ratio. The 0.827-inch pin diameter is also a key measurement for ensuring proper fitment and function within the engine's connecting rods.

JE Pistons brings over 75 years of experience to the table, applying their expertise to create pistons that balance durability and performance. This set includes their proprietary Forged Side Relief (FSR) forging design, which helps minimize friction and power loss by reducing skirt width. Some applications may also feature an accumulator groove to reduce combustion gas pressure, preventing ring flutter and improving ring seal for consistent power delivery. Additionally, a skirt coating, if included for this application, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

This complete kit comes with high-quality wrist pins, locks, and JE Pro Seal premium piston rings, ensuring you have the essential components for installation. JE Pistons are engineered and machined 100% in the USA, reflecting a commitment to quality and performance proven on tracks worldwide. Please note that this part is not CARB approved and cannot be shipped to California.