Wiseco KE325M8425 Professional Series Forged Piston Kit BMW M54B30 84.25mm 9.0:1 CR

The Wiseco KE325M8425 is a Professional Series forged racing piston set designed for serious racers and builders, packed with custom-level performance and durability features. This complete 6-piece piston kit is engineered for BMW M54B30 engines, featuring an 84.25mm bore size, 28.30mm compression height, and 0.8661-inch pin diameter. The pistons deliver a 9.0:1 compression ratio, making them ideal for high-performance street and race applications.

Key Features:

• Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
• ArmorGlide skirt coating provides seizure resistance, friction reduction, and quieter operation
• Fully machined crowns and precision ring grooves for optimal performance
• Complete kit includes premium rings, wrist pins, locks, and specification sheets
• Each piston weighs approximately 321 grams
• Features specially designed valve pockets and complex dome shapes for multivalve engines

This piston set is compatible with a 89.60mm stroke and 135.00mm connecting rod length. Wiseco Professional Series pistons are designed and built for heavy to severe duty race builds, delivering the strength and reliability demanded by competitive racing applications.