Manley 46260GT-8 4.125" Bore .043 Top / 3mm Gapless Steel Piston Ring Set (8-Pack)

The Manley 46260GT-8 is a professional-grade gapless top piston ring set designed for high-performance and racing engine builds. Engineered for a 4.125-inch bore, this set features a .043-inch top ring and 3mm second ring configuration, delivering superior sealing efficiency and reduced blow-by compared to conventional ring packages.

Manley's gapless top ring technology utilizes a two-piece interlocking design that virtually eliminates the end gap found in traditional piston rings. This results in improved cylinder pressure retention, better power output, and increased engine efficiency — critical advantages in forced induction, nitrous, or naturally aspirated competition applications.

Key Features:

• Bore Size: 4.125 inches
• Top Ring Thickness: .043 inch — gapless two-piece interlocking design
• Second Ring Thickness: 3mm steel ring
• Construction: High-strength steel for durability under extreme heat and pressure
• Gapless Design: Dramatically reduces combustion blow-by for maximum cylinder pressure
• Designed for use with Manley and compatible aftermarket pistons

The Manley 46260GT-8 ring set is a top choice for engine builders seeking maximum sealing performance in racing and high-output street applications. Compatible with most 4.125" bore V8 piston applications.