I've done a little search into this and haven't really found much hard information about doing it, the reason why I'm looking into it is that unfortunately my sr is burning oil (over a liter last week alone) and I have been considering swapping the engine. Yes I know the 4age will give better results but I don't have the money nor the time to be able to source one and fit it. Basically, I wanting to know how hard is it to put a 4afe from a corolla into an ep91 as my research has come up with mixed results saying only drivers side mount needs changing to having to redo all them. I'm confide