Wiseco KE114M8425AP BMW Forged Piston Set Bore CR - M50B25 2.5L 84.25mm 11 1

The Wiseco KE114M8425AP is a Professional Series forged piston set engineered for the BMW M50B25 2.5L 24-valve inline-six engine. This set delivers a 84.25mm bore (a +0.25mm oversize) with an 11.0:1 compression ratio, making it an ideal choice for high-performance naturally aspirated builds targeting increased displacement and compression.

Key Features:

• Forged 2618 aluminum construction — engineered, forged, and machined in the USA for improved tensile strength and durability under severe-duty race conditions
• 84.25mm bore diameter — a +0.25mm oversize over the stock M50B25 bore
• 11.0:1 compression ratio with a -1.5cc dish volume
• 38.20mm compression height for proper fitment in the M50B25 block
• 22mm piston pin included (0.866 in. diameter)
• ArmorGlide® skirt coating — provides seizure resistance, friction reduction, and quieter operation
• Deck clearance: +0.70mm | Block height: 210mm | Rod length: 135mm
• Head cc: 34.0cc | Gasket thickness: 1.75mm

Wiseco Professional Series pistons are no-expense-spared components built for serious racers and engine builders. This kit includes everything needed for a complete bottom-end piston replacement across all six cylinders of the M50B25, providing the precision and reliability demanded by high-performance and race applications.