MiniSteam Little York Casting SetSchafer's Little York Hit and Miss Casting Kit Kit Contains: Aluminum Castings (3) Base, head and fender Cast Iron Castings (6) 2 flywheels, cylinder, 2 valve cages, and piston Bronze Castings (9) Conn. rod, rocker arm, timing arm, 2 gov. weights, gov. brackets, arm retainer, speed adjustable block and camshaft bearing Set of Boston Gears Photographs (2) Detailed Blueprints (4) 17" x 22" Schaefer Model Specifications: Flywheels 4 1 2 inch Bore . 750