Hi y'all ive got a question in regards to registering my corolla I'm for Melbourne and ive nearly got all the bits together to do the 4age swap in my ke70 and it going to be my daily drive, now the car is currently un rego'd and has the 4kc motor in it! Would I be able to swap over the motors then get a roadworthy cert for it and then get it rego'd or do I have to get an engineers cert to do this? I've been told by a few people that I don't need a engineers cert because I'm not modifying the car to the extreme I'm simply swapping over motors from the same family and correct me if I'm wrong the ae71 had a 4age in them from factory so I'm assuming that haveing the 4age is just another option like A/C! Or power windows!