Toyota 1UR-FSE Engine Review – A Buyer’s Guide (Specs, Performance, and Where to Buy) If you are shopping for a good, high-performance replacement engine, the Toyota 1UR-FSE is one of the best 4.6-liter V8 engines available. If you are replacing the engine in your Lexus LS460, GS460, or Toyota Land Cruiser, the 1UR-FSE delivers with