Malossi 183cc Cylinder Kit Ø63 mm – Engineering for High Demands

The Malossi cylinder kit with Ø63 mm bore and 183 cc displacement is a high-end component for modern liquid-cooled 4-stroke engines. It impresses with premium materials and precise machining. The cylinder is made from a high-strength primary aluminum alloy with hardened silicon content and features a nickel-silicon carbide coating for maximum durability.

Manufactured on CNC-controlled machines with extremely tight tolerances. Heat dissipation surfaces have been optimized for improved performance. The ultra-compact piston is made from a special aluminum alloy and tin-plated for optimal glide properties. Three high-performance piston rings with different profiles ensure maximum sealing and stability – including a nitrided compression ring and a three-piece oil control ring.

Important: Requires the separately available control unit/CDI Malossi Forcemaster 2 (Part no. M5517738).


TECHNICAL CHARACTERISTICS

  • bore : Ø 63 mm

  • stroke : 58.7 mm

  • stroke : 183 cc

  • compression ratio : 11.48
  • material: primary aluminium alloy with high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel matrix and cross smoothing with two diamond channels with very tight tolerances

  • machining: on machine tools with high precision numerical control
  • cylinder-piston joint with an allowance of 0.05 mm
  • recalculated and improved heat exchange surfaces


Piston

  • ultra compact with 3 rings

  • material : special aluminium alloy with high silicon content, low thermal expansion and a tinning on the sliding surfaces
  • machining on machine tools with numerical control

  • lighting and reinforcement
  • upgraded heat exchange surfaces


Piston rings

  • special rings with high sliding capacity and very high mechanical strength

  • I° ring compression made of nitrided and chrome steel

  • II° special cast ring
  • Three-part scraper ring made of chrome-coated special steel alloy

 


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OEM numbers (for comparison purposes only)
Malossi:
3117737, M3117737
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