Wiseco K0164X4 Ford Windsor Flat Top Forged Piston Kit TFS Twisted Wedge - 302/351 7.5cc

The Wiseco K0164X4 is a forged flat top piston kit designed specifically for Ford 302/351 Windsor small block engines built with TFS (Trick Flow Specialties) Twisted Wedge cylinder heads. This is a Build on Demand piston set, featuring a -7.5cc flat top crown with dedicated valve pockets sized at .350"/.250" to clear the Twisted Wedge head's unique valve angles without compromising compression.

Key Features:

• Forged 2618 High-Strength Aluminum Alloy — superior fatigue resistance for high-performance and forced induction applications
• -7.5cc Flat Top Crown with .350"/.250" valve pockets optimized for TFS Twisted Wedge heads
• 1.090" Compression Height for compatibility with 3.400" stroke applications
• 5.400" rod length and 8.200" deck height engine geometry
• ArmorGlide® Skirt Coating — reduces friction, resists seizure, and quiets cold-start piston noise
• Anti-detonation and pressure seal ring grooves for enhanced ring seal and durability
• Strutted skirt design for optimized skirt profile and reduced piston rock
• Premium 1.2mm / 1.2mm / 3.0mm GFX Ring Set Included
• Wrist Pin Part #S424 (.927" x 2.500") included
• Engineered, forged, and machined in the USA at Wiseco's Mentor, Ohio facility

Wiseco's dedicated forging approach means the K0164X4 is not an adapted universal piston — it is purpose-built for this application, ensuring optimal ring groove geometry, skirt profile, and crown design. Each piston features fully machined crown details and precision ring grooves for consistent performance build after build.

This kit is a Build on Demand item, manufactured to order to your specified bore size. It is ideal for high-performance street, strip, and track builds using the Ford 302 or 351 Windsor block paired with TFS Twisted Wedge cylinder heads.