Carrillo CPN-2972 Piston Ring Set Bore - 75.5mm

The Carrillo CPN-2972 piston ring set is a high-performance replacement ring pack designed for 75.5mm bore pistons. This single-cylinder ring set is engineered specifically for smaller bore and sport compact engines that demand superior sealing under high cylinder pressure conditions.

Ring Specifications:

• Bore Size: 75.5mm (2.972 inches)
• Ring Thickness: 1.0mm x 1.2mm x 2.8mm
• Top Ring: Gas nitrided steel compression ring for maximum durability
• Second Ring: Cast iron with taper hook groove face (Napier style)
• Oil Ring: 2.8mm flex vent design for optimal oil control

Key Features:

• Compatible with Nikasil, Alusil, and cast iron cylinder bores
• Gas nitrided top ring provides scuff resistance and extended life under extreme conditions
• Low tension design minimizes friction drag while maximizing sealing efficiency
• Optimized for high-performance and racing applications
• Manufactured in Japan to CP-Carrillo specifications

This ring set is sold per single piston. For complete engine builds, order the appropriate quantity for your application (4 sets for 4-cylinder, 6 for 6-cylinder, etc.). Compatible with CP Pistons kit SC7028 and commonly used in Honda D16 engine builds.