Manley Ring Set 100mm File Fit 1.2mm x 1.2mm x 2.0mm - Set of 4 Subaru EJ205WRX / EJ257 | 461000dt-4

In high-output or race-optimized engines, your piston rings must maintain sealing efficiency under extreme conditions. The Manley Performance Piston Ring Set (Part 461000DT-4) provides a premium upgrade designed for 100 mm bore applications. With specified ring thicknesses of 1.20 mm top, 1.20 mm second ring, and a robust 2.00 mm oil rail, this ring pack is built for performance use.

Built with high-quality steel and featuring tabbed oil rails and Napier-style second rings for enhanced control, this set is ideal for race, street/track hybrids, or serious performance builds. It offers excellent sealing characteristics, thermal stability, and durability under high loads and elevated RPMs.

Specifications:

• Bore diameter: 100.00 mm (for compatible engine blocks)

• Top ring width: 1.20 mm

• 2nd ring width: 1.20 mm

• Oil ring width: 2.00 mm

• Oil ring tension: 9-13 lbs

• Top ring: Premium steel construction

• Includes Napier-style second rings and tabbed oil rails

Why Use This Ring Set?
For high-performance engine builds — whether boosted, high-revving, or competition-oriented — stock ring sets often fall short in sealing, durability, and control under stress. This Manley ring package brings precision, performance, and reliability to the heart of your engine.

Fitment & Installation Notes:

• Designed for engines using a 100 mm finished bore — confirm compatibility with your build.

• Proper ring gap, end-gap clearance, and orientation are critical for optimal performance and durability.

• Follow piston manufacturer’s and engine builder’s guidelines for installation.

• Recommended for high-power builds where ring control, sealing, and oil-management are top priorities.