4.6-Liter Engines: The 4.6-liter Toyota engine falls under the UR Toyota engine family. Each engine in the Toyota UR family of engines features all-aluminum blocks and cylinder heads, dual overhead cams, 32-valves per cylinder, and variable valve timing (VVT) for the intake and exhaust valves.
1UR-FSE - This 4.6-liter V8 Toyota engine came for sale in the 2006-2017 Lexus LS 460 and the 2008-2011 Lexus GS 460. This engine featured direct injection and produced 385 horsepower along with 369 lb-ft of torque.
1UR-FE - This Toyota 4.6 engine is basically the same exact engine as the previous 4.6-liter V8 Toyota engine but it lacks the direct injection system. Thus, this engine was only rated at 347 hp and 339 lb-ft of torque. It was used in the 2006-2017 Lexus LS 460, 2005-2011 Lexus GS 460, 2009-present Lexus GX 460, 2012-2021 Toyota Land Cruiser, 2009-2012 Toyota Sequoia, and 2009-2019 Toyota Tundra.