Wiseco 4168GFX GFX Piston Ring Set 4.168 in. Bore 1.2/1.2/3.0mm Single Cylinder

The Wiseco 4168GFX is a GFX-series piston ring set designed for a 4.168-inch (105.867mm) bore, sold as a single-cylinder set. This ring set is engineered to pair with Wiseco's late-model EFI and small block performance piston lineup, delivering reliable sealing and oil control in high-performance engine builds.

Ring Construction:

• Top Ring: 1.2mm gas-nitrided steel compression ring — chrome plated with a barrel-face profile for superior sealing and wear resistance
• 2nd Ring: 1.2mm Napier-style taper-faced ductile iron ring — optimized for oil scraping and compression support
• Oil Control Ring: 3.0mm 3-piece assembly featuring a stainless steel spacer-expander with chrome-plated rails for precise oil control

Key Features:

• File-to-fit design allows custom end gap tuning for your specific application
• Gas-nitrided top ring provides excellent hardness and corrosion resistance
• Napier-style second ring improves oil return and reduces oil consumption
• Stainless steel oil ring spacer with chrome-plated rails for long-lasting oil control
• Designed specifically for use with Wiseco pistons

Specifications:

• Bore: 4.168 in. (105.867mm)
• Top Ring Thickness: 1.2mm (0.047 in.)
• Second Ring Thickness: 1.2mm (0.047 in.)
• Oil Ring Width: 3.0mm
• Ring Tension: Standard
• Quantity: Sold individually — one set fits one piston. Order the quantity equal to your cylinder count.

Wiseco ring sets are developed and tested to complement Wiseco pistons, ensuring proper fit, optimal compression sealing, and reliable performance in street, track, and competition engines.