Comparing 2JZGTE Valve Spec Vs. 1UZFE Valve Specs

UPDATE: November 24, 2020 A limited supply of original Lextreme parts back in stock including EGR Delete Kits, torque converters, supercharger brackets, etc! Please note that the SC400 turbo kit is all sold out and won't return. Email me at [email protected] which original Lextreme parts you need and I'll check availability. (Please note that we're not an auto parts supplier.)

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

Ferrea Valve Specification

Properties 2JZ Intake 2JZ Exhaust 1UZ Intake 1UZ Exhaust 2JZ Retainer 1UZ Retainer
Stem Length 98.55mm 99.10mm 95.2 mm 97.12 mm .340″ Height .299″ Height
Stem Diameter 5.98mm 5.98mm 5.96 mm 5.96 mm .986″ O.D. .986″ O.D.
Valve Size 33.60mm 29mm 33.45 mm 28.04 mm .786″ 2nd Stage .686″ 2nd Stage
Tip Length 3.5mm 3.5mm 4.00 mm 4.00 mm .502″ 3rd Stage .474″ 3rd Stage
Tip Groove N/A N/A 2.15 mm 2.15 mm .291″ I.D. .300″ I.D.

Here are some possible valves that can be use on the pre 1998 1uzfe valves.  Credit for the valve specifications go

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!

Leave a Reply

Your email address will not be published. Required fields are marked *