2UZFE: Everything You Want to Know

The 2UZFE is the second in the Toyota UZ family. Its based off of the 1UZFE, but was used in trucks and SUVS instead of luxury cars. The biggest change with the 2UZFE, is that the displacement was increased to 4.7L, which greatly increased the torque. The 2UZFE doesn’t have quite the cult following that the 1UZ does, but does it have the same tuning potential?

2UZFE: Engine Basics

Unlike the 1UZFE, the 2UZFE received an iron cylinder block. This was done to slightly increase reliability. Since the 2UZFE was designed for pickups and SUVS weight wasn’t really a concern either. Other than that, the engine design is pretty similar to the 1UZ. Its a 90* V8, with aluminum heads. There are 32 valves (4 per cylinder), and the lifters are not hydraulic, so it needs periodic valve adjustments.

RELATED: Toyota 1UZ-FE: Everything You Need to Know

2UZ1

Later versions of the 2UZFE received Toyota’s VVT-i system. This helped increase horsepower, torque, and fuel economy. Just like the 1UZ-FE, if the timing belt breaks it doesn’t destroy the cylinder heads. It’s a non interference engine.

  • Production: 1998 – 2011
  • Cylinder Block Material: Cast-Iron
  • Cylinder Head Material: Aluminum
  • Valve Train: DOHC, 4 valves per cylinder
  • Stroke: 84mm
  • Bore: 94mm
  • Compression Ratio: 9.6:1
  • Displacement: 4664cc

2UZFE: Vehicles

The 2UZFE came in a variety of different Toyota products. Like I mentioned before, it was designed for Toyota pickups and SUVs. The 2UZ was equipped in the Lexus GX470 and the LX470. It was also equipped in the Toyota 4Runner, Land Cruiser, Sequoia, and Tundra.

RELATED: Toyota 3UZ-FE: Everything You Need to Know

2UZ2

  • Lexus GX470
  • Lexus LX470
  • Toyota 4Runner
  • Toyota Land Cruiser
  • Toyota Sequoia
  • Toyota Tundra

2UZFE: Performance Data

Just like the 1UZFE, the 2UZFE had minor modifications done to it over the years to increase its horsepower, torque, and fuel efficiency. The biggest change would be the addition of Toyota’s VVT-i system.

  • 230 horsepower @ 4,800 rpm
  • 302 lb-ft @ 3,600 rpm

Minor revisions were added

  • 232 horsepower @ 4,800 rpm
  • 311 lb-ft @ 3,600 rpm

Toyota’s VVT-i system was added

  • 271 horsepower @ 4,800 rpm
  • 315 lb-ft @ 3,400 rpm

Once again, minor revisions were added

  • 282 horsepower @ 4,800 rpm
  • 324 lb-ft @ 3,400 rpm

As you can tell from these numbers, the 2UZFE ended up with 52 more horsepower, and 22 lb-ft more than it started with. The largest jump occurred when Toyota added VVT-i, which added an impressive 49 horsepower.

2UZFE: Tuning Potential

If you’re a car guy, or gal, than this is the part you’ve probably been waiting for. What can this engine really do? How good is it when you start throwing aftermarket parts on it? Well, since its based off of the 1UZ, most top end parts for the 1UZ will bolt right onto it.

Just like the 1UZ, the Terminator Cobra supercharger, or Eaton M90 is a common addition the 2UZFE. With the addition of fuel injectors, and an exhaust, the 2UZFE can make 380+ horsepower @ 6psi. Building the bottom end with lower compression ratio pistons, the 2UZFE can make 440+ horsepower @ 10psi.

2UZ3

A common, and interesting build is using the 2UZFE bottom end, and block, with all 1UZFE components. This allows you to turn your LS400 into an LS470. Its not a super common build, for the simple fact that you could build your engine with a super charger or turbo for the same amount and make more horsepower.

RELATED: Nissan VH45DE: Everything You Need to Know

Just like the 1UZ, and other great Toyota engines (1jz, 2jz, etc.), the 2UZ has a ridiculously strong block. The 1UZ is praised for its ability to hold up to 1,000 horsepower on a stock block. What if I told you that the 2UZ can hold up to even more than that? After all, the 2UZ is made out of stronger cast-iron. The 1UZ is good for around 1,000 horsepower on a stock block, whilst the 2UZ is good for 1,400+ horsepower on a stock block.

1UZFE vs 2UZFE

In case you missed it, we wrote an article similar to this one covering the 1UZFE. So, how is the 2UZFE any different than the 1UZFE, and which one is better? To start off, the biggest and most obvious difference is the added  displacement. The 1UZ is a 4.0L whilst the 2UZ is a 4.7L. This was done to add low end torque, which SUVs need. The 1UZ is all aluminum whilst the 2UZ is has a cast-iron block.

1UZFE1

RELATED: 4 Reasons You Need a Lexus SC300/SC400

The 1UZ was designed for luxury sports cars and sedans, so while it is fairly torquey, it makes its best power high in the rev range. The 2UZ was designed for pickups and SUVs, so it produced much more torque down low. Things like a new intake manifold help the 2UZ achieve this.

There are other minor differences, but here are the main ones: displacement, cylinder block material, and intake manifold.

2UZFE vs 3UZFE

How does the 2UZFE stack up against the later 3UZFE? The 3UZFE is based off of the 1UZ, and shares many of its components with it. The 2UZFE has .4 liters of larger displacement, but weighs considerably more thanks to its iron block. The 3UZ’s weakness is its thin cylinder sleeves.

When it comes down it, the 2UZFE is the superior engine. Although it weighs way more, it can withstand more horsepower than the 3UZ. If you must have a UZ engine, just go with the 1UZ. It’s the best overall engine.

2UZFE: Summary

Overall the 2UZ is actually a lot like the 1UZFE. They are designed for different applications, but their parts are mostly interchangeable. The 2UZ is a super torquey, and super strong engine. Its relatively small compared to its competitors engines, but its makes as much torque, or more, at a lower RPM than its competitors. Let me know what you think of the 2UZFE in the comments below!

Author: Bryce Cleveland

Bryce is a die hard car fanatic. When he's not working on his Jeep Cherokee, he's beating it up in the desert. He started Dust Runners Automotive Journal in 2014 and continues to write content for it as much as possible.

3 thoughts on “2UZFE: Everything You Want to Know”

  1. Are all 2uz- fe blocks the same …? Bassically wondering if i cld put vvti top end…..heads and intake ……
    From a 2005 2uz- fe and put them on a 2002 2uz- fe block wich came non vvt

  2. They also seem to be forgetting that the 2UZ Connecting rods are garbage. Throw them in the trash. Those are the single biggest reason that the TRD Supercharger kit specifically made for these only ran 6 psi. Too much more than that and they have a bad tendency to come apart. The upside is that you can use the early production 1UZ rods as a drop-in upgrade. The only thing that you’ll have to do is get the rotating assembly rebalanced.

    Long story short, no, a stock block 2UZ will NEVER handle 1400hp. Unless by “stock block” you mean a non-filled block. And even that isn’t true since the 2UZ only has 2-Bolt mains in them instead of the 6-Bolt mains that the 1UZ. The iron block will help it to hold quite a bit, but the claim of 1400hp seems a bit out of place as I’ve personally seen other iron blocks of that era with 2-Bolt mains (early Mitsubishi 6G72 blocks were 2-Bolt) pull the studs right out of the block when pushed hard (~800AWHP).

    None of this is to take away from the fact that the 2UZ really is a great motor. It’s heads actually seem to flow better than the legendary 1UZ is stock form (talking in terms of port flow), and the extra 0.7L of displacement is a godsend in a truck/SUV application.

    I just find myself wishing the author of this article would have done their homework a bit better before posting something like this. Don’t want someone to ruin their engine due to false information.

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