Have Transmission Questions? Ask a Mechanic for Answers ASAP
The 472 engine will not bolt up to the cars existing transmission. Besides that, the 472 is physically too large to fit into the engine bay of the Allante with its front wheel drive transverse configuration. Your best bet would be to go with a 4.1 or if you want a larger engine, get a later model 4.5 liter version of this same engine.