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XAT Racing Custom Oversized non-VVTi Lexus 1UZ  LS400 SC400 Engine Valves

XAT Racing Oversized Valves non-VVTi Lexus 1UZ Intake and Exhaust Valves

XAT Racing Custom Oversized non-VVTi Lexus 1UZ LS400 SC400 Engine Valves. Please note these are made to order and often have a lengthy wait time of 2-5 weeks

XAT Racing exclusive! 1989-1997 1UZFE owners are no longer left out when it comes to upgraded valves! We now supply a full set of 32 oversized valves (16 intake, 16 exhaust) for non VVTi 1UZ engines. 

Factory intake valves are 33.5mm, exhaust 28mm, but we can make to your desired sizes. We typically do +.5mm or +1mm oversized valves. Pictures shown are of an actual set made for an early non-VVTi 1UZ customer that is looking to push some big HP numbers!

  • +.5mm oversized valves bring you to 34mm/28.5mm
  • +1mm oversized valves bring you to 34.5mm/29mm

Please note these are custom ordered parts. We do not typically stock a set of them, so expect 3-5 weeks wait time roughly for availability. These have 6mm valve stems and are not for the VVTi engines. We have other options for anything 1998 and newer.

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XAT Racing
  • $1,085
    • SKU
    • Weight
      10 lbs
    • Dimensions (L x W x H)
      10 x 10 x 10 in
  • Manufacturer
    XAT Racing
  • Size
    +.5mm oversized, +1mm oversized, Stock size

Most product ships from either the manufacture or largest wholesale location to pass the saving to you. Most orders will ship via UPS, as we will be able to provide the best rates and have had the least issues when using UPS.

IF YOU DO NOT LIKE THE AUTOMATED SHIPPING CALCULATOR'S RATES, PLEASE CONTACT US AND WE CAN GET YOU A BETTER ONE! Especially for anyone outside the USA, please contact us with a list of parts you'd like to order, and where you are located.

We accept the following payment methods:

Also Venmo and unmarked nonsequential dollar bills

  • Fitment Type
    Vehicle Specific
Toyota/LexusLexus LS/Celsior1989-1994 UCF10/11 LS400/Celsior1UZ-FE 4.0 V8 non-VVTi
Toyota/LexusLexus LS/Celsior1995-1997 UCF20/21 LS400/Celsior1UZ-FE 4.0 V8 non-VVTi
Toyota/LexusCrown Majesta1995-1999 S1501UZ-FE 4.0 V8 (UZS151, UZS155, UZS157)
Toyota/LexusLexus SC/Soarer1992-2000 Z301UZ-FE non-VVTi 4.0 V8 UZZ30 (92-97)/31/32

Refund, Returns and Cancellation Policies: all returns are subject to the restocking fee as per the provider of the part. Engine internals are non-returnable due to their nature.

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