Its a tight fit. Dementionally the engine is big...as big as a big block Chevy.
I read several build threads with this engine and have seen just about as many motor mount designs. Most of the people were trying to make engine side mounts to fit the factory toyota truck frame mounts. The angles make it kind of a challenge. The Lexus uses a simple design and I saw no reason to re-invent the wheel so I just got a custom Urethane mount (Since nobody makes one for the Lexus.) and made the frame side mounts. It turned out to be really easy that way and the design allows me to adjust the height of the engine if I need to.
The Urethane mount
