Federal Mogul E251X60 Cast Iron Piston Ring Set Bore - 4.060

The Federal Mogul E251X60 is an economy-grade piston ring set designed for engines with a 4.060 inch bore diameter, representing a .060 inch oversize application. This complete ring set provides reliable sealing performance for rebuilds and engine overhauls at an economical price point.

Key Specifications:

• Bore Size: 4.060 inches (.060" oversize)
• Top Ring: 5/64 inch thickness, cast iron construction
• Second Ring: 5/64 inch thickness, cast iron construction
• Oil Ring: 3/16 inch thickness, stainless steel material
• Ring Tension: Standard tension
• Configuration: 8-cylinder set (includes rings for all 8 cylinders)
• Installation Type: Drop-in fit, no filing required

Features and Benefits:

• Economy-grade construction ideal for budget-conscious rebuilds
• Cast iron compression rings provide dependable sealing performance
• Stainless steel oil ring resists corrosion and maintains tension
• Complete set includes top compression ring, second compression ring, and three-piece oil ring assembly
• Standard tension design ensures proper ring seal without excessive cylinder wall pressure
• Drop-in installation simplifies the rebuild process

This ring set is commonly used in Chevrolet small block engines (such as 350, 327, 302, and 383 cubic inch builds) and Ford small block applications (289, 302, and 351W engines) that have been bored .060 inch oversize. The "E" designation indicates this is a complete eight-cylinder set, providing all necessary rings for a full engine rebuild.