I ordered a 1987 454 mercruiser turnkey motor from remanufactured.com for $5490. When it was delivered it had automotive parts on it and they were not usable on a marine engine as well as the wrong exhaust system Remanufactured.com was fully aware that this was going into a 1987 SeaRay Cabin Cruiser to replace the 454 mercruiser that was damaged. When the engine was installed and taken out for a test drive, a leak in the oil pan was discovered, the leak is 100 drips per min. Needless to say the engine needs to be removed and gaskets replaced... read full review »