How to fit large engine transversely?

Hi
I just got the pre order. How do I fit an engine transversely? Everything I use is too large. A Mitsubishi Evo X has a 2.0L 4 transverse with 86.0mmx86.0mm pistons, but something this size won't fit into the small sedan body shell.
I just got the pre order. How do I fit an engine transversely? Everything I use is too large. A Mitsubishi Evo X has a 2.0L 4 transverse with 86.0mmx86.0mm pistons, but something this size won't fit into the small sedan body shell.