Wiseco KE325M845 Forged Pistons for 2000-2006 BMW 330i/530i/Z4 (

Vehicle Fitment

• 2000-2006 BMW 330i (M54B30 3.0 L I6)
• 2000-2006 BMW 530i (M54B30 3.0 L I6)
• 2002-2008 BMW Z4 3.0 (M54B30 3.0 L I6)

Features

• Forged 2618 aluminum construction for high strength and durability
• ArmorGlide® coated skirts to reduce friction and improve longevity
• Professional-series design for high-performance builds
• Oversize 84.50 mm bore (+0.50 mm) to support rebuilds or uprated applications
• Dish-crown design (~-7.3 cc) to yield ~9.0:1 compression ratio for performance tuning
• Precision machined crown with valve reliefs for high-lift cams or ported heads
• Floating 22 mm wrist pins included for stable operation at high RPM
• Complete kit includes ring set and assembly hardware for full rotating assembly upgrade

Specifications

• Bore: 84.50 mm
• Compression Height: 28.30 mm
• Piston Dish Volume: -7.3 cc
• Estimated Compression Ratio: ~9.0 : 1
• Wrist Pin Diameter: 22 mm
• Material: Forged 2618 Aluminum
• Piston Quantity: 6 (for inline-6 M54B30 engine)

Included Components

• 6x forged pistons (84.50 mm bore)
• 6x 22 mm wrist pins
• 12x circlips / locks for wrist pins
• 1x high-performance piston ring set
• Specification sheet

Product Description

The Wiseco KE325M845 piston set is a high-performance upgrade engineered for BMW's M54B30 3.0 L 24-valve inline-6 engine used in models such as the 330i, 530i and Z4 3.0 from roughly 2000-2006. Built from forged 2618 aluminum and featuring an 84.50 mm oversize bore, this kit supports performance-oriented builds where durability and strength matter.

With its dish-crown profile (approximately -7.3 cc) and a compression ratio of ~9.0:1, these pistons deliver enhanced knock resistance and flexibility - making them suitable for turbocharged or high-output naturally aspirated applications. The ArmorGlide® skirt coating reduces internal friction, helping improve ring seal and longevity under high stress.

This comprehensive piston kit includes everything needed for a full rotating assembly upgrade: six forged pistons, wrist pins, circlips, and a high-performance ring set. Ideal for tuners and engine builders working on M54B30 engines who require a robust, high-performance bottom end.