Features:

• Recommended for street, racing, or marine applications
• Barrel faced top ring offers instant break-in and maintains contact with the cylinder wall as the piston rocks slightly at TDC and BDC.
• Napier THG (hook groove) second compression ring provides superior oil control by scraping cylinder walls of oil and providing a reservoir on each down stroke.
• CP-20 oil control ring, named by its 20 degree ear angle, and exclusive feature that provides the absolute best cylinder wall seal.
• Available in different compression ring materials consisting of cast iron, ductile iron, gas nitride stainless steel, steel alloy.

High Alloy Steel vs. Ductile Iron

Physical Advantages:

• Higher Tensile Strength
• Higher Yield Strength
• Greater Fatigue Resistance
• Greater Hardness
• Lower Ring Mass

Performance Benefits:

• Better Stress Resistance
• Reduced Groove Poundout
• Less Side Wear
• Superior Oil Economy
• Superior Blow-by Control
• Lower Friction
• Longer Service Lift
• Better Cylinder Wall Conformability