ATHENA cylinder kit for engine 478CCM BIG BORE 756.46.02

Athena cylinder set

For more than 10 years, Athena has been investing in the best and most modern technologies for the production of cylinders and their components, which are used not only by original equipment manufacturers, but also by the best racing teams in the world.

Last but not least, the production of aluminum cylinders is constantly improved through cooperation with the best Italian universities and constant development requests from the best engine tuners.

Due to a flexible production department, Athena can react efficiently to different situations (OEM production batches, small quantities, building a prototype for racing teams).

Athena cylinders are made of high quality aluminum alloys. They are manufactured using the latest technologies and are coated with a nickel-silicon alloy. Once all cylinders have passed strict quality controls, they meet the highest standards in terms of reliability, durability and performance.

Features:

- A special 3D software is able to generate virtual simulations and mechanical loads.

- Aluminum cylinders are cast in steel molds and manufactured with CNC machines (thousandths of tolerance can therefore be guaranteed in all manufacturing phases)

- Revised water channels to increase capacity

- Cylinder liners are made from a special blend of silicon carbide and nickel to ensure the best possible piston life and cylinder durability.

- Tested at an internal temperature of approximately 20 degrees, for the best possible control of the holes and cylinders

- The surfaces of the cylinders are perfectly flat to eliminate any inaccuracies of fit

Technical specifications:

Cylinder material: Aluminum

Cooling type: water cooled

Diameter: 98mm

Stroke: 63.4mm

Displacement: 478.2cc

Compression: 12.4:1

Piston pin diameter: 18 mm

Number of piston rings: 3

Upper piston ring thickness: 1mm

Second piston ring thickness: 1.2mm

Oil Ring Thickness: 2.5mm

Stock: not included in delivery

Maximum power at the crankshaft: 56 HP / 8,500 rpm


APPLICATIONS OF THIS PRODUCT:
According to the data provided by the manufacturer, this article is compatible with the following brands, models and years:
Yamaha WR 450 F 52,5/40,8 CV, 38,6/30 kw 1cil. CJ04W 5TJ2 Bastidores: CJ04W henceforth00037-- 2003
Yamaha WR 450 F 52,5/40,8 CV, 38,6/30 kw 1cil. CJ04W 5TJ6 Bastidores: CJ04W henceforth07153-- 2004
Yamaha WR 450 F 52,5/40,8 CV, 38,6/30 kw 1cil. CJ07W 5TJ9 Bastidores: CJ07W henceforth00101-- 2005
Yamaha WR 450 F 52,5/40,8 CV, 38,6/30 kw 1cil. CJ09W 5TJC Bastidores: CJ09W henceforth00101-- 2006
Yamaha YZ 450 F 60 CV, 44 kw 1cil. CJ03C 5TA2 Bastidores: CJ03C henceforth00710-- 2003
Yamaha YZ 450 F 60 CV, 44 kw 1cil. CJ05C 5XD2 Bastidores: CJ05C henceforth00112-- 2004
Yamaha YZ 450 F 60 CV, 44 kw 1cil. CJ06C 5XD6 Bastidores: CJ06C henceforth00101-- 2005