It is technically an EVO I-III engine block, but it is not an EVO III engine as it has a few bolt on parts that make it RVR specific. It has a smaller turbo, most probably out of an auto transmission and you have to bear the extra costs of a manual flywheel, it would have a different oil filter setup on it, different crank angle setup, different water pipe, different camshafts, has a water supply from the side of the block that needs to be blocked off and some different wiring in the loom, and I think different front engine mount as well?. There's probably a bit more but thats all I can think of at the moment at the top of my head. Getting the extra stuff and the bit more fiddling around ends in a few hundred more $$, time and hassle spent by yourself in making it suitable for your project. To an experience person who knows what parts and changes are required (and has parts laying around) its not that big a deal, but to someone who is new to it and was lead to believe its ready to bolt straight in it can cause a few headaches. This is why we recommend people get a frontcut or get all the parts first instead of getting just an engine or bits and pieces and end up making it difficult for themselves in the long run.
