XLPower Nimbus 550 Nitro Big Block Conversion Kit

Take your Nimbus 550 Nitro to the next level!

The new Nimbus 550 Nitro Big Block Conversion Kit is specially designed to upgrade the standard Nimbus 550 Nitro to accommodate larger and more powerful engines. 

Compatible Engines:

* OS 91 / 105

* YS 91 / 96 

Key Features:

* Supports larger-displacement nitro engines

* 6.8:1 gear ratio with the included 25T pinion

* Recommended rotor head speed: 2,350 RPM MAX

* Reinforced conversion structure designed for Big Block engines

* Retains compatibility with the Nimbus 550 Nitro platform

* Supports main blades up to 580mm in the standard configuration

Conversion Kit Includes: 

* 1 ×XL60NB100 Lower clutch bell bearing block for big block

* 1 ×XL60NB110 25T Motor pinion for big block

* 2 ×XL60NB010 Rear carbon frame for big block

* 1 × XL60NB220 Bottom plate for big block

* 1 × XL60NB210 Wire cover for big block

* 1 × XL60NB120 Nimbus Nitro Engine Shaft Set for big block

* 1 × XL60NB020 Engine mount(L/R) for big block

The Big Block Conversion Kit provides an exciting upgrade option for pilots looking for more power and performance from their Nimbus 550 Nitro. 

Engine, helicopter and other components not listed above are not included

Installation Tutorial: