I received a good engine for a fair price. I replaced the VQ35de in my G35 6mt coupe that had sat for 2 years, unable to pass inspection due to some internal engine issue. 1. Use your own motor mount brackets and alternator bracket. (JDM was different in my case.) 2. Choose the best of your intake components and exhaust manifolds and replace the associated gaskets. (I am assuming you are replacing an existing, complete engine.) 3. Replace valve covers. 4. Do anything else needed that is easier with the engine out – pilot bearing, clutch release bearing and slide, Rack and pinion? Clutch slave cylinder? Power steering lines? etc. This was my first engine swap and went about as expected. I think it took two days of actual installation before the first start and some additional days and hours reassembling the front end and such. Once I realized I had forgotten the MAF sensor plug, the first proper start went as if the engine was always in the car and was just run the day before. (Being my first engine swap, bleeding the coolant system was a bear, but I got it done through frequent revisiting for a week or so.) I had to chase down an apparent lean condition, which had nothing to do with the engine. (Exhaust leak around the oxygen sensors – test exhaust connections by pressurizing the tailpipes with a shop vac on the blow side and spray soapy water on the connections.) I am back to driving my car and finally have the car I THOUGHT I bought 5 years ago - a fun, reliable car, with no oil leaks or oil consumption. I live several hours away, so, after calling with a couple questions, I purchased from the listing and got freight delivery. (Check up on the freight delivery; they need an appointment for everything.) I am very pleased and will purchase here again, should the need arise.