Malossi BIG DEPS aluminum thermal unit D 47 piston pin 10

The Malossi BIG DEPS Ø 47 aluminum cylinder kit is a high-quality product designed for Piaggio and Italjet 50cc mopeds.

This cylinder features a split exhaust and symmetrical transfers, offering numerous advantages.

The threaded exhaust connection ensures extreme durability and the possibility of replacement in case of breakage.

Furthermore, it allows for increased exhaust output, further improving engine performance.

The kit includes a decompression valve that is smaller in size compared to the original Piaggio valve.

The cylinder head has a central hemispherical combustion chamber.

The Malossi BIG DEPS aluminum cylinder kits represent the perfect balance between performance and component durability.

The cylinder is made with a high-strength aluminum alloy and a nickel-chrome-plated barrel.

The internal transfer ports have been completely redesigned to maximize power and control combustion chamber temperatures.

The cylinder kit offers wide interchangeability, with pistons available with Ø 10 or Ø 12 wrist pins.

The gaskets are made of annealed copper, which ensures better heat transmission and temperature management.

The connection to the exhaust is guaranteed by a flange-mounted steel fitting, which solves the problem of loosening due to vibrations.

Each kit includes two exhaust outlets, one for original or similarly sized mufflers and one with larger dimensions for unrestricted exhaust flow.

The Malossi BIG DEPS Ø 47 cylinder kit offers optimal performance thanks to its distribution with 6 transfer ports, cylinders obtained through gravity casting in specific steel shells, and precision machining on CNC machines.

SPECIFICATIONS

• Stroke: 43 mm
• Displacement: 74.6
• Compression ratio: 13.2
• Cooling: Air
• Number of transfers: 6
• SPORT Spark Plug: Iridium IW 24
• MHR Spark Plug: Iridium IW 27

COMPATIBILITY NOTES

For the installation, it is necessary to drill the original engine crankcase.