CAST-IRON Ø47 CYLINDER KITS. Malossi cast-iron cylinder kits: the best balance between component performance and component life. The cast-iron cylinder kits produced by Malossi S.p.A. are designed and manufactured with the specific objective of obtaining high combustion efficiency, long life, and a reliability that suits the Malossi name. Owing to the experience gained in preparing cylinder kits for racing, Malossi engineers have developed the thermodynamics of cast-iron cylinder kits to the fullest and designed the internal fluid mechanics of the cylinder kit with fanatical precision (see the transfer ports, exhaust and combustion chamber), thereby obtaining a high level of turbulence in the combustion chamber. That in turn has permitted a substantial reduction in specific consumption and a drastic reduction in exhaust emissions. Technical features - Material: wear-proof, laminated special cast iron - Recalculated heat exchange surfaces - NC machine-tool machining - Transfers and exhaust designed for maximum efficiency - Lightened and reinforced special aluminium alloy pistons with a high silicon content - Optimised compression ratio - Very high turbulence combustion chamber