Lexus-Toyota V8 UZ-FE Engine Modifications

UPDATE: December 25, 2020 A limited supply of original Lextreme parts back in stock including the EGR Delete Kit, torque converter, 3/8" cat flange and supercharger fish bracket! Please note that all other parts, including the SC400 turbo kit are sold out and won't return. Email me at [email protected] which original, in-stock Lextreme parts you need and I'll respond. (Please note that we're not an auto parts supplier and I can't respond to inquries for parts we don't have.)

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

Engine Mods
Forced Induction
Body Mods
Video Tutorials
Misc. Topics

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
R&D Injector Radiator

Lexus-Toyota Transmissions
Pistons & Rods Ignition
Upgrade MSD
Valve Springs Upgrade
Electrical fans conversion
Electric Fan Relay Diagram
1UZFE Injector Upgrade DIY EGR
Delete Kit

1UZ Vs. 3UZ Main Bolts/Studs
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
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!

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!

One 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.

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