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The UZ engine family
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Author Topic: The UZ engine family  (Read 8183 times)

Offline Cebby

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The UZ engine family
« on: December 20, 2006, 10:12:29 AM »
1UZFE
Year: 1989 to 1997
Used in the Lexus SC400 and LS400 in the US as well as the Toyota Soarer, Celsior, Crown and Majestic outside of the US.

1UZFE (VVTi)
Year: 1998-2000
Used in the Lexus SC400, GS400 and LS400 in the US as well as the Toyota Soarer, Celsior, Crown and Majestic outside of the US.

2UZFE

Year: 1998 to 2006
Used in the Lexus GX470 and LX470 as well as the Toyota Tundra, Sequoia, Landcruiser and 2003+ 4Runner

3UZFE
Year: 2000-2006
Used in the Lexus SC430, GS430 and LS430 in the US as well as the Toyota Soarer, Celsior, Crown and Majestic outside of the US.


  • The 1UZ and 3UZ use an aluminum block, where the 2UZ uses an iron block. 
    The non-VVti 1UZ seems to be the "easiest" motor to swap due too the simplified electronics over the VVti model. 

This post will be added to over time.
« Last Edit: December 20, 2006, 10:16:04 AM by Cebby »
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Offline 91_4x4runner

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Re: The UZ engine family
« Reply #1 on: December 20, 2006, 10:32:44 AM »
The 1UZ has a 6-bolt main.

The 2UZ has a 2-bolt main.

The main issue with the 2UZ when force induced is that the rods are quite thin compared to the 1 and 3UZ.
« Last Edit: December 20, 2006, 10:37:02 AM by 91_4x4runner »
91 4Runner
78 280Z
92 SC400

Offline 91_4x4runner

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Re: The UZ engine family
« Reply #2 on: December 25, 2006, 10:28:48 PM »
Credit to Lextreme:

Quote
Soarer/SC400: Rear Sump
Celsior/LS400: Front Sump
Crown: Mid Sump
GS400: Front Sump
GS430: Front Sump
SC430: Front Sump
LS430: Front Sump
Tundra: Front Sump
Sequoia: Front Sump
4Runner: Front Sump
LX470: Front Sump
91 4Runner
78 280Z
92 SC400

Offline Cebby

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Re: The UZ engine family
« Reply #3 on: December 26, 2006, 11:01:32 AM »
Pretty sure the LX470 is rear sump unless the one I got came off a GX and not the LX470.
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Offline DJ

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Re: The UZ engine family
« Reply #4 on: January 18, 2007, 08:33:38 PM »
A quick question for the gru's .....

To fit a 1UZ into a IFS 4 runner, should I be looking for a front or rear sump version.

Thanks, Doug.

Offline 91_4x4runner

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Re: The UZ engine family
« Reply #5 on: January 18, 2007, 08:59:24 PM »
Front is the easiest and requires the least modifications. Rear, needs some oil pan modifications but allows the engine to sit lower in the bay.
91 4Runner
78 280Z
92 SC400