Harley-Davidson 16483-36 Knucklehead Engine Cylinder

The Harley-Davidson 16483-36 Front Cylinder is a stock-style replacement front engine cylinder for 61 cu in Knucklehead V-Twin motorcycles, housing the piston assembly and forming the front combustion chamber. It is commonly used on Harley-Davidson E, EL, and ES Knucklehead models manufactured between 1936 and 1947 and is intended for restoration, rebuild, or replacement projects. This front cylinder features a 3-5/16 in bore, is made from cast iron, and carries a five-fin design with a machined / black painted finish that varies by manufacturer. It supports stock bore, stock stroke, and stock compression configurations and is designed as an OEM-style replacement component for authentic Knucklehead restorations. Applications include vintage motorcycle engine rebuilds, complete engine restorations, and maintenance on 61" Knucklehead engines; pistons and rings are sold separately. Note this cylinder is designed for front-position installation and requires finish boring and honing prior to installation.