Manley 46120GT-8 99.5mm Gapless Top Piston Ring Set 1.5/1.5/3mm 8-Cylinder

The Manley 46120GT-8 is a premium gapless top piston ring set designed for high-performance and race applications. Engineered for a 99.5mm (3.917") bore diameter, this ring set features a 1.5mm / 1.5mm / 3mm ring pack configuration and is sold as a complete 8-cylinder set, making it ideal for builds requiring consistent, leak-free cylinder sealing across all bores.

The gapless top ring design virtually eliminates blow-by at the top ring land, improving cylinder pressure retention and maximizing horsepower output. This makes the 46120GT-8 a popular choice for forced induction, nitrous, and high-compression naturally aspirated engine builds where ring seal integrity is critical.

Key Features:

• Bore Diameter: 99.5mm / 3.917"
• Ring Pack: 1.5mm Top / 1.5mm Second / 3mm Oil Ring
• Gapless Top Ring for maximum cylinder pressure retention and reduced blow-by
• Sold as a complete 8-cylinder set
• Suitable for high-performance street, strip, and race applications
• Compatible with metric ring groove pistons using standard 1.5/1.5/3mm groove dimensions
• Manufactured by Manley Performance, a trusted name in high-performance engine components

Manley Performance has been a leading manufacturer of high-strength engine components for decades, trusted by professional engine builders and enthusiasts worldwide. The 46120GT-8 piston ring set delivers race-proven sealing performance for demanding high-output engine applications.