Block Rough Surface

Unique rough surface transfers heat more quickly.

Cylinder efficiency must dissipate the heat it generates quickly, evenly and efficiently. Unlike other cylinders, Lycoming castings use a rough surface to disturb the cooling air. Genuine Lycoming rough-surfaced cylinder barrels enable air to turbulate, eliminating heat faster than smooth-surfaced cylinders.

Zero time-in-use cylinder kits.

With no required documentation for cylinder time-in-use, a reconditioned cylinder unit may have thousands of hours logged at installation. Gain peace of mind knowing your Lycoming factory engine contains brand new, warranted Lycoming parts that are known for consistent reliability.

Block Zero Time

Nitriding toughens the surface.

Our nitriding process outlives traditional case-hardening by creating a 0.025" thick protection around each cylinder barrel. This high-end manufacturing process extends the cylinder life, so your investment results in longer cylinder TBOs.

Leaving a lasting impression on our customers.

Genuine Lycoming cylinders are chosen by customers worldwide who recognize the quality and craftsmanship of our reliable aircraft parts.

Block Lasting Impression


  • Nitrided steel barrel with an aluminum alloy cylinder head
  • Forged aluminum piston
  • Piston pins and plugs
  • Intake and exhaust valves
  • Chrome oil and compression rings
  • Valve springs
  • Valve Seats
  • Ni-Resists Valve Guides
  • Valve retaining keys
  • All gaskets and seals

Make the switch to a new cylinder kit.