The Toyota UZ engine family is a gasoline [1] fueled 32-valve quad-camshaft V8 piston engine series used in Toyota's luxury offerings and sport utility vehicles. [2] Three variants have been produced: the 1UZ-FE, 2UZ-FE, and 3UZ-FE.

The new generation of Toyota's V8 engines (the UR family) replaced 3UZ-FE with the new 4.6-liter V8 engine - the 1UR-FSE/FE. Like its predecessor and all UZ family, the 3UZ-FE is very reliable and extremely durable engine. It has no standard problems or design issues.

Aug 21, 2016 · While sharing its predecessor’s basic architecture and 90-degree V8 configuration, the 3UZ-FE was packed with enhancements and innovations that took its performance and refinement to new heights. The production of the 3UZ-FE ended in 2010, but its legacy continues.

3UZ-FE appeared in 2000 with the aim to replace 1UZ-FE and produced together with 4.7-liter 2UZ. The 3UZ cylinder block is the same as at 1UZ, aluminum 90 ° V8 with cast iron sleeves. On this motor cylinder bore increased to 91 mm. As the result walls became thinner.

Oct 10, 2023 · The Toyota UZ engine family is a series of gas-powered, 32-valve, quad-camshaft V8 engines used in the automaker's luxury lineup. First introduced in 1989, Toyota developed three engine versions through its 24-year run. The engines are known for being reliable and effective powerplants.

Feb 7, 2023 · The 4.3-liter Toyota 3UZ-FE V8 engine was assembled at a plant in Japan from 2000 to 2013 and was installed in rear-wheel drive passenger cars, including those produced under the Lexus brand. This powertrain was equipped with VVT-i phase controllers on the intake shafts and the ACIS system.

Mar 21, 2023 · Robert started with a Toyota 4.0 L 1UZ-FE V8. That worked well but it eventually gave way to a built 4.3 L 3UZ-FE VVTi V8 featuring factory camshafts, Supertech valve springs, ported heads, ARP rod bolts, and ported oil pump.

Feb 19, 2025 · The 3UZ engine is a 90-degree V8 with a DOHC (Dual Overhead Cam) design that features 32 valves. Here’s a quick breakdown of its key specifications:

Apr 2, 2025 · The Toyota 3UZ engine is a 4.3-liter V8 engine with a DOHC (Dual Overhead Camshaft) configuration. It features an aluminum block and cylinder heads, which helps to reduce weight and improve fuel efficiency.

The main differences between them are the throttle body (3UZ is full electric, the 1UZ VVTi and early 2UZ use a hybrid cable actuated and ECU controlled), the larger bore diameter on the 3UZ (making it a 4.3 instead of a 4.0), and the coolant port shape is slightly different in the block.