UPDATE (May 13, 2026): A limited supply of the original best-selling Lextreme 1UZFE EGR Delete Kit remains. If you own a 1UZ from 1990-1997, you really need to get this kit! Email me at [email protected] for simple ordering instructions. I'll probably run out in the next month or so and I'm not planning on having more made.
All other parts are SOLD OUT and won't return, including the LS400 and SC400 turbo kit, rebuild kits, supercharger and performance torque converter. We're not an auto parts supplier and I can't respond to inquiries for random Lexus and Toyota auto parts.

LEXTREME LEXUS FORUMS HERE! - Post Questions For Quick Answers!

Lexus-Toyota V8 UZ-FE Engine Modifications

Tutorials
Engine Mods
Forced Induction
Body Mods
Swaps/Converions
Electronics
Video Tutorials
Misc. Topics

BFI
Exhaust Modification with Greddy Mufflers		 ARP Studs
Leakdown Test Injectors Upgrade 7MGE
Injectors for 1UZFE
Decompression of 1UZFE
Lex-Toy Tranny		 CR Change with Heads work
TB Bypass
1UZ Shortblock		 340 & 341
Transmission
R&D Injector Radiator
Hose
Lexus-Toyota Transmissions
Pistons & Rods Ignition
Upgrade MSD
1UZFE Valve Springs Upgrade Electrical fans conversion
Electric Fan Relay Diagram
1UZFE Injector Upgrade DIY EGR
Delete Kit
1UZ Vs. 3UZ Main Bolts/Studs
3UZFE
Rod vs. 1UZFE Rod		 GS430 Piston Vs. LS400 Piston (3UZ vs. 1UZ)
GS430 Block Vs. LS400 Block (3UZ vs. 1UZ)
1UZFE Crown Fuel Pump
Diagram (Dual & Single Speed)		 Cold Air Induction Battery Relocation

Supra Twin Turbo Brake		 2 Bolt main to 4 bolt main Conversion UZFE
Stroke/Displacement
Electric Fan Conversion 1UZFE
Vs. 2JZGTE Valve Upgrade
Shim under Bucket Conversion Head
shaving & resurfacing

 

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Do you have any questions? If so, please head over to the forums to get a quick answer or share your experience!

Cash App (user: $lextremeparts).
This is a freelance site with no support by huge companies.  I have been doing most of the R&D and technical write-ups by myself with my personal money and literally thousands of hours of my time.  I have taken extra steps to demonstrate in details how things are done.  Currently I am one of the few people doing Lexus V8 research and performance enhancement.  This effort comes from my personal love for this wonderful engine.  Most of the modifications are from trial and error. There's no cookbook for 1UZFE mods and its unknown territory for much of supercharger performance.  The parts, labor, web development and site hosting are 100% paid from my personal hobby money.  If you feel my efforts help you in any form, please do not hesitate to donate any amount of money to support this site. You have no idea how much I and the entire Lexus and Toyota community appreciate it!

1 thought on “Lexus-Toyota V8 UZ-FE Engine Modifications”

  1. I have a Mercedes Benz 270 cdi

    The motor is blown and needs to be replaced.

    What will it cost to do a turn key modification on my vehicle.

    Reply

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