The extra frequent distinction between the Toyota 1UZ-FE and 2UZ-FE engines merely comes all the way down to dimension. The 1UZ includes a bore and stroke of three.44 in. by 3.25 in., making for a 4.0L engine displacement. In phrases of energy, it was fairly passable, producing as much as 256 hp and 245.4 lb-ft of torque. For somebody seeking to get a luxurious sedan just like the Lexus LS 400 or the Lexus SC 400 grand tourer, these V8 engines may offer you a mix of excellent energy and luxury.

On the opposite hand, the 2UZ engine bored it out to three.7 in. and elevated the stroke to three.31 in., bumping up the displacement to 4.7L. This gave the engine a average bounce in energy, upping issues to 271 hp, however when it comes to torque, there was a large improve, producing as much as 315 lb-ft. This is why this engine was used extra within the SUV and pickup truck fashions from Toyota and Lexus, just like the Lexus LX 470 and the Toyota Tundra.

The different main distinction between the 2 was the fabric used for the engine block. The 1UZ was a fairly commonplace aluminum block, however Toyota opted to make use of a forged iron block for the 2UZ as a substitute. Because it was getting used with heavier responsibility autos, the forged iron resolution gave the engine a bit extra reliability to deal with that further energy and torque. The purpose it’s particularly odd is that the 3UZ-FE engine went again to having an aluminum engine block. Beyond this stuff, the Toyota 1UZ and 2UZ work fairly equally.

[Image by Ypy31 via Wikimedia Commons | Cropped and scaled | Public Domain]