Instuctions Case k2543

Hi, i have a kit with g304 case, my question is, which is the correct way to install the kit in this box??? I can put the heat sink between the box and the transistor??

i cant put the box inside the engine!!!

For best results, mount the heatsink at the outside of the box.
Make a suitable hole in the enclosure so that the kit can be mounted inside the box, while the power transistor can be mounted against the heat sink.

i have a question,¿i can put the box inside engine??

Try keeping it away from excess heat, splash, etc…