Manley 46871-1 Engine Piston Ring Set 87mm Bore, 1.2/1.5/3.0mm File Fit

The Manley 46871-1 is a Premium Steel top ring piston ring set engineered for high-performance and demanding engine builds. Sized for an 87mm bore with ring widths of 1.2mm (top), 1.5mm (second), and 3.0mm (oil), this file-fit set is designed to be finish-fitted to your specific bore for optimum ring seal and compression retention. The Premium Steel top ring construction makes this set particularly well-suited for high-horsepower, forced induction, and nitrous applications where superior ring strength and heat resistance are essential.

Key Features:

• Premium Steel top ring — ideal for forced induction, nitrous, and high-horsepower applications
• Napier-style second ring — standard on all Premium Steel ring sets for improved oil control and sealing efficiency
• 3-piece oil ring with an oil ring tension rating of 9–13
• File fit design — allows precise end-gap tuning to match your specific bore and application
• Ring dimensions: 87mm bore / 1.2mm top / 1.5mm second / 3.0mm oil
• Sold as a single-cylinder ring set

Manley Performance is a trusted name in high-performance engine components, and this ring set reflects their commitment to precision manufacturing and material quality. For builders who also want gapless technology, Manley offers Total Seal® Gapless® top ring packages for many piston applications. File-fit rings require end-gap measurement and fitting prior to installation.