A Gapless® top provides the greatest performance benefit (increased horsepower and crankcase vacuum). However, a Gapless® 2nd provides excellent oil control and blow-by prevention (less oil consumption). As such, we typically recommend a Gapless® top for naturally aspirated applications, especially V8 and straight engines. For flat (horizontally opposed) engines and turbo or super-charged engines, we recommend a Gapless® 2nd. Most Total Seal® piston ring styles are available in Gapless® configurations.

Why Choose a Gapless® Top or Gapless® 2^nd Ring?

Total Seal® Gapless® patented Top or 2^nd Piston Rings provide:

• Elimination of blow
• Increased horsepower & torque
• Longer engine life
• Better sealing
• Saves money (fewer tear-downs)
• Cleaner, cooler engine oil
• Better oil control
• Increased intake signal
• Wider torque curve
• More engine vacuum

Total Seal® pioneered Gapless® technology over 50 years ago. Our Gapless® piston ring design provides consistent performance that doesn’t fade with opening end gaps. They are used for all aspects of Motorsports, Diesel, Industrial, Compressors and Aviation.