Wiseco 4062GFX GFX Series Piston Ring Set 4.062 in. Bore 1.2mm/1.2mm/3mm

The Wiseco 4062GFX is a GFX-series replacement piston ring set designed for a 4.062-inch bore. Sold as a single-piston set, these rings are purpose-built to pair with Wiseco's late-model EFI and performance automotive pistons that are engineered around the 1.2mm steel nitride and Napier GFX ring package.

Ring Construction:

• Top Ring: 1.2mm chrome-plated, barrel-faced steel with gas nitride treatment for enhanced wear resistance and seal retention
• Second Ring: 1.2mm Napier-style taper-faced design for superior oil scraping and compression sealing
• Oil Control Ring: 3.0mm 3-piece assembly with a stainless steel spacer and chrome-plated rails
• Ring Dimensions: 0.047 in. x 0.047 in. x 3.0mm (top x second x oil)

Key Features:

• File-to-fit design allows precise end gap tuning for your specific application
• Gas nitrided steel top ring provides excellent surface hardness and corrosion resistance
• Designed to work with Wiseco late-model EFI pistons and select small block performance applications
• Sold individually — covers one piston; order the quantity needed to complete your engine build
• Manufactured to Wiseco's exacting specifications for consistent compression, sealing, and oil control

Wiseco ring sets are engineered and validated specifically to complement Wiseco pistons. For a complete engine build, order one set per cylinder. Note: Wiseco GFX ring sets are designed for use with Wiseco pistons only and are not interchangeable with other ring styles.