Wiseco Pistons K601M975 Forged Piston Kit for Subaru EJ22 Inverted Dome

The Wiseco K601M975 is a complete forged piston kit engineered specifically for Subaru EJ22 engines. This shelf stock kit features Wiseco's legendary forged aluminum construction, delivering exceptional strength and reliability for both performance and rebuilt applications.

Key Features:

• Forged aluminum construction for superior strength-to-weight ratio
• Inverted dome piston design optimized for EJ22 combustion chamber geometry
• Complete kit includes pistons, rings, pins, and clips
• ArmorGlide skirt coating reduces friction and wear
• Precision-machined ring grooves for optimal seal and longevity
• Designed for stock bore or standard rebuild specifications

Wiseco pistons are manufactured in the USA using aerospace-grade aluminum alloy and feature advanced forging processes that create a more uniform grain structure. The inverted dome design helps optimize compression ratio while maintaining proper valve clearance in the EJ22's unique horizontally-opposed engine architecture. This kit is ideal for engine rebuilds, replacements, or mild performance upgrades where durability and quality are paramount.