I own a 2006 make Lexus Rx 300. It developed transmission problems and some mechanics attempted to repair it to no avail. I have decided to get a new engine which would come attached to a gearbox. Unfortunately I am only able to get Rx 350 engines attached to the gearbox. I am requesting anybody in this forum to advice whether the engine compartment can accommodate an Rx 300 engine together with the gearbox. Second whether the RX 300 engine can be adapted to work in the Rx 300 and lastly what modifications if any can be done to make it work. Last but not least, is it a wise idea to change to RX 350 engine?
