|Install TopCap in place of a removed cylinder to protect the engine from dirt, debris, and stray parts. Made from fuel and solvent resistant polymer, TopCap allows for full crankshaft rotation. One size fits Lycoming wide deck 320, 360, 540, 720 and Continental 470, 520, and 550.|
Used these when replacing all 4 cylinders on my Lyc 320. Was able to clean, strip and repaint the crankcase w/o material entering the cylinder holes. Also able to rotate prop w/o scuffing the con rods on the case. Thick, heavy construction. Worked very well for my purpose. A&Ps were impressed as well.