yep, and it has crosshead bearings. Largest one is 14 cylinders, ours was 10 (3,000+ hp per cyl) and the bore was 36''. The pistons with the skirt and rod are probably that tall. The piston crown can be removed from the skirt. The piston is placed on it's crown upside down after initial removal. It takes two overhead horizontal hoists to remove the piston from the hole. The first is attached to what looks like a chandelier and it is secured to the top of the piston. After removal of the nut which secures the rod to the crank the piston assembly is raised so an eyelet is attached to the bottom of the single rod. When the piston is clear of the hole the other hoist is connected to the eyelet. By lowering the top of the piston with one hoist the other end is raised until the piston is upside down. The Chandelier is removed and the piston is lowered onto it's crown. I've done this many times and your 3 foot hand held control box is what controls both hoists. The trick is when the piston is horizontal during the inversion because one person controls everything and you have to move each hoist outward and then back. The rings are removed with a tool that looks like a car scissor jack. Each end goes into the ring gap and you spread the rings to clear the crown.