3UZ-FE Engine

Specifications

The Toyota 3UZ-FE is a 4.3-liter (4,292 cc) naturally aspirated aluminum DOHC V8 produced from 2000 to 2010 and widely regarded as the most refined evolution of Toyota’s UZ engine family. Featuring a 32-valve layout and VVT-i (Variable Valve Timing with intelligence) on the intake cams, it delivers between 290 and 300 horsepower and around 325 lb-ft of torque, offering smooth, linear power delivery tailored for luxury performance. It powered premium Lexus models such as the Lexus LS430, Lexus GS430, and Lexus SC430, where its near-silent operation and refined character perfectly complemented the brand’s flagship sedans and grand tourers. 

Known for exceptional reliability, a robust bottom end, and the ability to surpass 300,000 miles with proper maintenance, the 3UZ-FE is also popular in the engine swap and tuning community due to its strength, smoothness, and compatibility with performance upgrades, making it one of Toyota’s most respected naturally aspirated V8 engines.

Compatible Models

Lexus LS 430 (2000–2006)

In the LS 430, the 3UZ-FE delivered ultra-smooth and near-silent performance befitting Lexus’ flagship luxury sedan. Producing up to 290 hp, it emphasized refinement over aggression, providing effortless acceleration and exceptional highway composure. Paired with a sophisticated automatic transmission and advanced comfort features, the engine helped solidify the LS 430’s reputation for durability, serenity, and long-distance comfort.

Lexus GS 430 (2000–2007)

The GS 430 gave the 3UZ-FE a sportier character, tuning it for sharper throttle response and stronger mid-range pull. With up to 300 hp in later models, it transformed the midsize luxury sedan into a capable performance cruiser while retaining Lexus-level smoothness and reliability. The balance between power and comfort made it a discreet yet potent executive sedan.

Lexus SC 430 / Toyota Soarer (2001–2010)

In the SC 430 and its Japanese-market counterpart, the Soarer, the 3UZ-FE powered a refined grand touring convertible. The V8’s linear power delivery complemented the car’s relaxed, luxury-focused character, offering smooth top-down cruising with confident acceleration. Its quiet operation and reliability enhanced the model’s appeal as a comfortable yet capable long-distance tourer.

Toyota Crown Majesta (2004–2013)

The Crown Majesta paired the 3UZ-FE with advanced technology and executive-level comfort in Japan’s premium sedan segment. Here, the engine emphasized seamless torque delivery and refined performance, aligning with the Majesta’s upscale positioning. Its durability and smoothness reinforced Toyota’s reputation for building dependable luxury powertrains.

Frequently Asked Questions