UCF10 LS400, Celsior 1989-1994

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.

NEW ESP H-Beam Forged Rods 1UZ 1UZFE

XAT Racing is now offering a UZ engine torque plate (fits all 1UZ, 2UZ, and 3UZ engines) for those that want to properly hone the cylinders on their Toyota/Lexus V8s. It fits all UZ engines with factory sleeves. Any serious engine builder will tell you that you need a torque plate in order to provide a similar stress pattern on the block that it experiences with the head on the block. Some builders even go as far as putting an old head gasket between the block and plate, then go through a standard Toyota pattern for torquing down the bolts/studs. This is a precision machined torque plate, manufactured out of 2.0" (50.8mm) thick 6061 T6 aluminum (precision CNC'd by our own machine shop). Aluminum was chosen, as it best replicates stress and strain coefficients of expansion during torquing that the factory aluminum head does. It has an overbore that will allow for plenty of room for honing and boring as possible, so if you are building a setup with stock or slightly larger bore, you won't have an issue. It is shipped in a sturdy container for protection. These are quite possibly the only ones on the market anywhere, so instead of charging up to $800-plus for these units, we thought we would bring it to the market for a reasonable price!! You can expect one it to ship next day typically, as we have one on the shelf at all times! These are available for shipment outside the USA if required as well! Please email Andrew@XATRacing.com for a freight quote. 

A torque or honing plate is critical when doing the hone/bore process on any engine build, especially those that will be running a boosted setup and ARP head studs. Performance studs are typically torqued at much higher values than standard OEM studs, which causes a deflection in the cylinders if not using a torque plate.

Please note the $78 rental is for 1 week, which starts from the day you receive the plate. If you need it longer, we will prorate the charge out of the refund for each week after. You may be better off purchasing it outright if you end up needing it for more than a week or two.

If you are building a bullet proof UZ series V8, you will need the ARP Stud kits found here. If you're building a HIGH HP UZ, you'll definitely need this ARP2000 version! We now offer an ARP2000 version of our popular UZ head stud kit for those looking to push the limits. High HP guys that are looking for the absolute best need not look further! Our Genuine ARP2000 Main Stud Kit includes all 20 Main Studs, 10 Side bolts (1UZ and 3UZ engines have 6 bolt mains!), 20 nuts, 20 washers, and 2 packs of ARP assembly lube to assemble one complete engine. Each ARP2000 main stud needs to be torqued to 70 ft/lbs Our Genuine ARP2000 Head Stud Kit includes all 20 Head Studs, 20 nuts, 20 washers and 2 packs of ARP assembly lube to assemble one complete engine. ARP2000 head studs need to be torqued to 70 ft/lbs When racing professionals in NHRA, IHRA, NASCAR, and Formula 1 competition need bullet-proof fasteners for their high-performance machines, they turn to one company: ARP. Since 1968, Automotive Racing Products has been engineering and perfecting bolts, studs, nuts, and other fasteners for engines, cylinder heads, headers, wheels, transmissions, and more. ARP uses only top-quality materialsfar above the usual aerospace quality others settle forin a highly exacting manufacturing process to create fasteners with the strength and durability to last race after race. XAT Racing leads the world in Toyota/Lexus V8 parts! Vehicles that came with these engines include SC400, GS400, LS400, SC430, GS430, LS430, GX470, LX470, Land Cruiser, Tundra, Sequoia, and Celsior, Soarer, Aristo, and Crown. Please note that you may have to shave 2 of the head studs down for each head, about 10mm, for the scissor gears that drive the cams. This is most commonly an issue with non-VVTi 1UZs

Customers outside the USA: please contact us for a shipping quote to your location. The automatic shipping calculator might be waaaay too much.

Our Genuine ARP Main Studs Kit includes all 20 Head Studs, 20 nuts, 20 washers and 2 packs of ARP assembly lube to assemble one complete engine. Each main stud needs to be torqued to 60 ft/lbs 

If you are building a bullet proof UZ series V8, you will need the ARP Stud kits found here. When racing professionals in NHRA, IHRA, NASCAR, and Formula 1 competition need bullet-proof fasteners for their high-performance machines, they turn to one company: ARP. Since 1968, Automotive Racing Products has been engineering and perfecting bolts, studs, nuts, and other fasteners for engines, cylinder heads, headers, wheels, transmissions, and more. ARP uses only top-quality materialsfar above the usual aerospace quality others settle forin a highly exacting manufacturing process to create fasteners with the strength and durability to last race after race. XAT Racing leads the world in Toyota/Lexus V8 parts! 

Customers outside the USA: please contact us for a shipping quote to your location. The automatic shipping calculator might not be accurate

1UZ ACL RACE Bearing Kit 1UZFE 2UZ 3UZ INCLUDES RODS AND MAINS

ACL bearings are designed for the engine that requires a tougher bearing for high RPM and power. The multi-layer design is derived from years of race testing and R&D. Race versions are coated with ultra slick oil retaining film for added protection in your competition engine. ACL bearings are available in standard or plus sizes for more oil clearance for high temp due to forced induction or higher revs.

As of recently, only the OEM thrust washers are currently available. We expect Clevite/Mahle and ACL thrust washers to be available again in mid 2024

Sticking with the stock rods for your rebuild? Make sure you grab these upgraded ARP rod bolts to keep them together! These are a great option for budget builds, especially if you will use a set of pre94 rods. For higher HP builds (especially if your engine sees boost), we recommend upgraded rods, which include the rod bolts with them. These ARP rod bolts however are more than adequate for a fresh stock rebuild. Don't forget to have your rods inspected and reconditioned if you're reusing old rods!

Clevite Mahle TM-1 1UZ 2UZ 3UZ Rod Bearings. The mains were discontinued, but these are supposedly still available at least. This listing is for 1 full set for your engine. Yep, all 8 rods, 16 individual bearings.

ACL main bearings 1UZ. These are the bearings we use in pretty much every UZ build we do! They tend to be more readily available than some others. They will also fit any UZ engine, 1UZ-FE, 2UZ-FE, or 3UZ-FE.

Pictures show the RWD K17 type caliper being used. The AWD N18 caliper has the same bolt pattern, but the caliper sits taller on the rotor. As such, the N18 version will not work with the IS-F rotor. You'll need to stick to the K17 type.

In our continuing support of Lexus performance products and the UZ platform, we have finished this set of ZINC CHROMATED brackets to mount LS460 / LS600h or LS500 brake calipers to any GS300, GS400, GS430, SC430, and many others!

These brackets are ideal for those DIYers that are looking for an inexpensive option for brake upgrades. You keep your factory brake lines in this bolt-on solution; all you need is a set of front 2007-2018 LS460, LS460L, LS600h, or even the new 2019+ LS500 fixed 4 piston brake calipers, LS460 fitment pads, and a set of 2008-2014 IS-F 14" rotors!

Although the roll center adjusters aren't mandatory, they provide a bolt on solution. You do not have to run them, though if you do not, you may need to modify the mounting hardware. They will improve the suspension geometry on lowered cars at any rate, so we highly recommend them.

Please note that the LS460 does NOT use 5x114.3 rotors, so you will NOT be able to bolt on the LS460 rotor. We do not have fitment confirmation on the larger LS460 F-Sport 6 piston Brembo brakes, though they may also fit when used with larger rotors

Additionally, you will most likely need 18" wheels to fit over these. The only 18s we have found to not fit so far are some Enkei RPF1s. We cannot make any promises on what else will not fit, however every other 18" wheel we have tried does fit over these brakes, including factory X-Runner wheels, Enkei NT03+, G35 Ray's wheels, etc.

Brackets fit:

☼ 1992-2005 Lexus GS300 / Toyota Aristo JZS147, JZS160, JZS161

☼ 1998-2000 Lexus GS400 / Toyota Aristo UZS160

☼ 2001-2005 Lexus GS430 / Toyota Aristo UZS161

☼ 2001-2005 Toyota Crown Majesta 1UZ

☼ 2001-2010 Lexus SC430 / Toyota Soarer UZZ40

☼ 1997-2017 Toyota Century V12 GZG50 

☼ 1989-2000 Lexus LS400 / Toyota Celsior UCF10/UCF11 and UCF20/UCF21

☼ 1992-2000 Lexus SC300/SC400 / Toyota Soarer JZZ30, JZZ31, UZZ30

☼ 1993-2002 Toyota Supra JZA80

WE HAVE OTHER BRACKETS TO FIT IS300/CHASER/MARK II/CRESTA/CROWN HARDTOP AS WELL!

You will receive 1 pair of brackets to mount both front calipers, as well as mounting hardware. Please note that we normally stock the brackets and rotors, however it may take 1 week to ship the calipers. 

We have FINALLY released a rear kit to go along with this front kit! Our rear kit uses radial mounted LS430 (not LS460) rear calipers and Supra TT rear rotors. PLEASE NOTE FITMENT DIFFERS FROM THE FRONT KIT. NOT ALL OF THE ABOVE CHASSIS' ARE SUPPORTED. Keep in mind these are designed for off road use only and professional installation is required. We have been driving on these kits for years, but use at your own risk.Check out the rear kit listing here! 

In most cases, we recommend 1.3mm head gaskets on 1UZ/3UZ (1.0mm on 2UZ), and if you are running custom compression aftermarket forged pistons. If you are keeping the stock pistons and looking to lower the compression ratio for more boost, we recommend a thicker head gasket such as 2mm. This is for BOTH head gaskets.

The 1UZ version of the head gaskets is specifically for the non-VVTi engine and does not surround the oil port going to the VVTi solenoids

Please keep in mind some sizes are exclusively made to order nowadays and will have a 1-2+ month wait time. The OEM head gaskets are more readily available.

Cometic Head Gaskets are developed with the performance enthusiast in mind. With so many individual requirements for each engine, Cometic offers a number of options to suit your specific build and needs.

The Cometic MLS gasket is comprised of three layers of Stainless Steel. Cometic uses Stainless steel for increased strength, its ability to rebound, and corrosion resistance. The outer layers of the gasket are embossed and coated on both sides with a flouroelastomer rubber based material (Viton) designed to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes. The Viton coating is heat resistant to 2500C or 4820F.

The center or shim layer of the gasket is comprised of an uncoated Stainless Steel layer, which can be varied to accommodate multiple thickness requirements. The MLS gasket is ideal for both aluminum heads to cast iron blocks and aluminum heads to aluminum blocks.

The composition of MLS will also withstand the shearing forces created by aluminum heads on cast iron blocks. No re-torque is necessary. By design the MLS gasket promotes an even torque load across the sealing surface allowing for measurable reduced bore distortion.

C4136 and C4137 offer a standard bore size of 92.5mm. C4211 and C4212 offer a standard bore size of 98mm

Please call or email us for an ETA and cost on other bore sizes, and note that they are special order and will take about 2 weeks to ship.

Please note due to draconian laws, we are not able to ship these to a California address. Please support the RPM act.

A simple, clean installation for your 1UZ swap! These blockoff plates are for the 89-97 1UZFE engines (LS400, SC400) and bolt on to the intake plenum. Get rid of all the stuff you're not using and clean up your build!

There's a few ways of deleting EGR from a non-VVTi setup. Our block off plate goes on the intake manifold itself. If you put it in between the intake manifold and the upper pipe, everything else can stay as it is. Otherwise you would ideally weld the header flange shut to stop any potential leaks there, and then you can remove the piping system entirely. 

For off road vehicles ONLY.

NOW IN STOCK, READY TO SHIP!

The initial test batch has been finalized, mounted, and confirmed for fitment! The display pieces are natural silver, but the finished product will be anodized black or anodized clear (silver). 

Assorted UZ engines use different pulleys depending on generation and chassis, but any pulleys that arent a direct replacement for your setup are easily fixed.

Full set of pulleys weigh just 2 lbs and 6 oz! Depending on your application, that's a savings of 1 lb 6 oz over stock!

Included pulleys, one of each:

• Power steering: this should fit all UZ engines, however some UZ V8s do not have serviceable power steering pump pulleys. They are pressed on instead of retained with a nut on the front. If you intend on using the XAT pulley, you will have to swap out your power steering pump for one with the retaining nut on the front. Please note that the diameter of your original pulley may be different from the XAT pulley supplied, which is factory 3UZ size, and may be preferable for your application to have it overdriven or underdriven slightly at any rate.
• Tensioner idler: fits UZ VVTi engines. Slightly different from 1UZ non-VVTi engines, so you may need a 3UZ serpentine tensioner pulley bracket. The VVTi serpentine tensioner fits the non-VVTi engine without issue, however the non-VVTi timing cover that goes over it will need slight trimming if you go this route
• Alternator: This will fit all 1UZ non VVTi, 1UZ VVTi, 2UZ, and 3UZ engines
• Hydrofan bracket idler: Likely different from other UZ engines such as 1UZ VVTi
• Upper idler: fits all 98+ UZs, including 1UZ VVTi, 2UZ, and 3UZ engines

Some pulleys might fit your engine just fine but end up being a slightly different size/diameter. This may also change which sized belt you will need, so please keep that in mind when installing.

For example, the Celsior non-VVTi engines (both UCF10 and UCF20) DO use a smaller diameter power steering pulley than the USDM American LS400. This would spin the pully faster and "overdrive" it. For drift, race and motorsport applications, we recommend the larger diameter pulley to underdrive it slightly.

The Celsior non-VVTi power steering pulley is the same as the American spec SC400 one.

Finally, a bolt-in clutch pedal bracket for LS400! Designed and produced in the Grindhouse skunk works, XAT Racing has just what you need to be doing clutch kicks in Grandpa's land yacht. This adapter uses a specific Wilwood clutch pedal with remote reservoir available from the dropdown menu! The end product is a 100% bolt-in assembly with many available cylinder bores and adjustable pedal engagement. Fitment has been confirmed on LHD UCF10 chassis (89-94 LS400) only. Contact us for UCF20 and rollcage-mounted options. Please keep in mind these are often made to order and may have a delay in producing them. You will need to have the clutch line custom made of course, depending on transmission used. Let us know what you need for your application and we can supply that as well!

Don't get stuck using those old, used, obsolete hand-me-down Supra injectors, start fresh with a healthy size and don't look back! These drop in to your stock fuel rails!

All Victory injectors start out as Bosch cores. They are then sized and matched within 1-2% providing exceptional idle quality. All injectors come with a limited 2 year warranty (minus 2200cc injectors.) You will also receive 1 free cleaning within the first 2 years! All injectors are a top feed high impedance injector and a direct drop in on the 1uz/2uz/3uz. VVTi engines supported as well. Make sure you select your size from the drop down menu! Includes a full set of 8 for your UZ engine

Please contact us for wiring options. While we try to sell these as drop in, plug in injectors, the plug-n-play adapters may be on backorder. You may have to wire in the 2 wire connectors to your harness yourself. 

Looking to delete that power steering pump and go electric? We've got you covered! These are custom made, in house designed, machined in the USA (as all of our products are), and ready to go.

Included is the billet piece and the pulley. This will bolt up to your factory power steering mount bracket. The size of the pulley is the same as the top idler pulley. Depending on what else you may be doing, you may need to use a different belt size. Best way to check size needed is to use a piece of string to route around and measure the length needed.

Please select if you have a VVTi engine or non-VVTi from the dropdown. If you're not sure which version you need, feel free to take pictures and measurements and reach out to us!

You will need to shorten 2 of the bolts for installation as well. 

For 2UZ fitment, you WILL need to source a 1UZ VVTi or 3UZ mount bracket for this

This will fit all UZ engines, VVTi or non. We keep the factory oil pump in stock, so we can typically ship out a modded pump next business day!

Higher horsepower means more oil demand. When you're running twice or three times the stock power output, you absolutely have to be sure your engine is getting lubricated everywhere it needs to! Especially if you have an aftermarket oil cooler to keep oil temps down!

What does XAT do to bring you options for a better oil pump? We take a brand new OEM 98+ Toyota pump, remove all hard edges, radius all corners, enlarge the front main seal drain, and shim the pressure relief valve to give more max PSI. Make sure you get a quality oil pump for your engine, from the professionals at XAT!

In the pictures, you can clearly see some the upgrades we have made. Check out pictures where you can see the oil pressure relief piston polished for smoother operation, and more consistent oil pressures.

There's plenty we do to greatly improve the oil flow without trying to "reinvent" the stock setup! The factory oil pump works well for factory applications, but there's clearly plenty of room for improvement, as we show here.

Take a look at the nasty hard edges that oil goes through, thanks to mass production. Get the added insurance of a much better oil pump from the professionals at XAT Racing!!

Pulley for UZ setups using the replaceable middle/center idler bracket instead of a hydrofan setup

Not sure if this is the right pulley for you? Put your application in the order comments, or email us before your order and we'll get you taken care of!

One of the few carryover parts from the JZ engines! This means this alternator pulley will fit all 1JZ, 2JZ, 1UZ, 2UZ, and 3UZ engine alternators. This pulley has the same diameter as stock as well, but looks much better! Billet CNC machined pulley with our brand laser etched into the sides. 

Top idler pulley for your UZ's serpentine belt drive! These billet pulleys include a serviceable bearing, so the pulley should last the life of the engine.

As it turns out, not all UZ power steering pulleys are the same! Some of them are not serviceable. Additionally, the 98+ (VVTi and all 2UZ engines) use a different style pulley from the earlier cars.

Please note some UZ V8s come with a fixed, press on pulley to their power steering pump. If you have one of these, you will need to swap your power steering pump for one that has a hex nut retained serviceable pulley. We strongly recommend checking what you have before ordering, and feel free to reach out to us with any questions. They are otherwise interchangeable and not too difficult to source!

As it turns out, the UCF10 and UCF11 1989-1994 1UZ Toyota Celsior has its own dedicated pulley for the hydrofan. This is not interchangeable with the USDM LS400 pulley, this is for JDM engines only.

In the interest of supplying as many parts for the UZ aftermarket, we had to complete the set and offer this one as well!

Please contact us for availability on the different rotor/caliper styles, as they go in and out of stock regularly!

We at XAT have developed an intermediary brake kit that slots just below the LS460 big brake kit that we sell! As we've discovered, the LS460 brake kit combo requires a minimum of 18" wheel, and some 18"s also will not fit. It's easy to recognize the fast growing popularity of JDM vehicles we grew up loving now being imported, as we have a hand in doing that as well!

This kit is specifically designed to use MkIV Supra TT rotors, meaning you only need 17" wheels to clear these brakes, giving an extra option for those looking to keep with period correct wheels and wheel sizes. Although we dont have a complete list of every wheel this kit will fit, if you suspect the LS460 kit may be too big for you, this is a terrific alternative, using OEM quality and Wilwood brand parts!

The steering arm and caliper may need to be modified on your setup to fit this brake kit, depending on application, if youre not using an angle kit. This had to be done on our zenki '89-92 UCF10 Celsior to fit, as well as our '96 Crown JZS155. Expect similar requirements on X90s and early X100s, likely on GS/Aristo as well. We have provided pictures of where we had to modify the caliper to fit.

Brackets fit:

☼ 1992-2005 Lexus GS300 / Toyota Aristo JZS147, JZS160, JZS161

☼ 1998-2000 Lexus GS400 / Toyota Aristo UZS160

☼ 2001-2005 Lexus GS430 / Toyota Aristo UZS161

☼ 1995-2005 Toyota Crown Majesta UZS151, UZS157, UZS171, UZS175

☼ 2001-2010 Lexus SC430 / Toyota Soarer UZZ40

☼ 1997-2017 Toyota Century V12 GZG50 

☼ 1989-2000 Lexus LS400 / Toyota Celsior UCF10/UCF11 and UCF20/UCF21

☼ 1993-2002 Toyota Supra

☼ 1992-2000 Lexus SC300

☼ 1992-2000 Lexus SC400

And possibly others!

Please contact us for availability on the different rotor/caliper styles, as they go in and out of stock regularly!

We at XAT have developed an intermediary brake kit that slots just below the LS460 big brake kit that we sell! As we've discovered, the LS460 brake kit combo requires a minimum of 18" wheel, and some 18"s also will not fit. It's easy to recognize the fast growing popularity of JDM vehicles we grew up loving now being imported, as we have a hand in doing that as well!

This kit is specifically designed to use MkIV Supra TT rotors, meaning you only need 17" wheels to clear these brakes, giving an extra option for those looking to keep with period correct wheels and wheel sizes. Although we dont have a complete list of every wheel this kit will fit, if you suspect the LS460 kit may be too big for you, this is a terrific alternative, using OEM quality and Wilwood brand parts!

This listing includes everything needed for 100% bolt on operation! These may not be legal for normal road use in your jurisdiction. We recommend checking before purchasing.

The steering arm and caliper may need to be modified on your setup to fit this brake kit, depending on application, if youre not using an angle kit. This had to be done on our zenki '89-92 UCF10 Celsior to fit, as well as our '96 Crown JZS155. Expect similar requirements on X90s and early X100s, likely on GS/Aristo as well. We have shown pictures of where the caliper needed to be modified to fit properly.

This service includes modifying both heads, not just one side. You get a full port job, 5 angle valve job, cylinder head inspection, and the heads get hot tanked for a proper cleaning. We offer this service for all UZ engines, VVTi or non. Regardless of what chassis your engine is out of, we service them all! LS400, LS430, GS400, GS430, SC400, SC430, Land Cruiser, Tundra, Sequoia, GX470, LX470, etc.

Please keep in mind that your heads will likely require extra work: heads will typically need to be decked, valve lash needs to be set (we can do this, will need your cams), and you may need other parts replaced such as valve guides. We will keep in touch with you during this process and let you know what your setup needs.

For the 1UZ non-VVTi engines from 89-97:
We offer a spring and titanium retainer kit using Brian Crower parts. We also can get custom valves that are +1mm oversized and use a shimless bucket to adjust the valves after installation.

For the 1UZ VVTi, all 2UZ, and all 3UZ engines from 1998-2013:
We offer a spring and titanium retainer kit using SuperTech parts.

XAT Racing/ MANLEY Stainless Steel swirl polished valves are offered in stock or 1mm oversize sizes for our build process, as well as brand new Ferrea valve lock keepers

You cannot define every possibility in a single description or for all applications, but 'generally' speaking, what we provide with our Street Cylinder Head Refresh package is great for up to 8,000RPM, more RPM would be possible with proper optional valve train.

In reality, no matter what purpose/intended use of your build, you will benefit! The truth is unless you are building a 1300HP+ drag car, you can pretty much eliminate any serious deep cylinder head porting. You simply do not gain enough volumetric efficiency by hogging out a ton of metal in the heads, unless you are running a silly-high lift custom cam.

If you live outside of the USA, NO PROBLEM! Please contact us for a shipping quote and we will be happy to help you out! PRICE DOES NOT INCLUDE SHIPPING TO OR FROM US

ACL Lexus V8 1UZFE/2UZFE/3UZFE Standard Size High Performance Rod Bearing Set

Need just the rod bearings? We typically stock these, the main bearings, and thrust washers!

For decades, we have exclusively installed NGK spark plug wires on all of our vehicles. NGK is an OEM, trusted brand, and there's no reason not to get the best!

Anyone looking to turn their UZ V8 into something EXTREME should strongly consider a turbo setup! The biggest issue with "1UZ turbo kits" (or any UZ turbo kit) is chassis fitment. With every car and truck having different clearances, there's not a "one size fits all" turbo kit. Intake and exhaust piping will be unique to each setup.

Fortunately we have a solution to help get you started! You'll need to finish the rest of the plumbing on your chassis with the engine and turbo(s) mounted. Base headers are left open so you can either weld turns/transitions or your own flange. Optionally, we can weld 44mm v-band flanges to the end, so all you need to do is figure out the rest of the piping.

With this setup, you can mount the headers on either side. They are fully reversible! The most common solution is to run a single or twin turbos up front with the manifolds pointing forward. Remote mount turbos are also an option.

• All stainless construction
• Schedule 40, 304 stainless piping
• 1/2" thick header flanges
• Hand made in the USA, in house

Please note these are made to order so there might be a slight wait time. Although we can take custom requests, we cannot promise fitment. 

XAT has been building Toyota/Lexus UZ V8s and developing new parts for almost 2 decades for customers worldwide. We pride ourselves with taking the time to correctly assemble and rebuild every engine, knowing them inside and out. We also are excited to build more and more of these for boost, as we feel a manual transmission and a turbo or supercharger are what these engines really respond best to.

Every engine gets hand built to order. Not everyone has the same goals or budget in mind, so we have built everything from mild to wild!

You will need to send us your engine, or we can supply a core. 

Our "base" engine build handles 800 HP reliably, but we do have a variety of options that you should also consider. If you're not sure if you want them, keep in mind that it's much easier to spend a few extra bucks while we have it and it's apart, than it is to go back in later and add these parts!

Base build includes fully assembled engine, ready to drop in:

• Eagle ESP rods, optionally BC ARP2000 rods
• JE or CP pistons for high compression N/A or low compression boost
• All new timing parts (belt, tensioner, billet tensioner bracket, pulley, water pump)
• ACL rod/main bearings, OEM thrust washer
• Block honing with torque plate
• Hot tanked engine
• XAT modified high performance oil pump
• Ported intake/exhaust ports
• Valve job
• ARP head studs
• ARP main studs
• Heads bolted to block, timing set
• Valve lash set with shims
• New valve stem seals
• New valve locks/keepers

Every engine shipping from us also gets crated in ISPM 15 certified wood crates for international shipment. Your investment needs to be protected, and this is included in the build price

Shipping is not included, you will need to reach out to us with your location and we can get shipping quotes to your address!

Ask us about additional "white glove" service options to really make your built engine stand out!

Select your specific UZ engine application from the dropdown menu!

For those that need more electricity than our 150 amp option can provide, we have teamed up with JS Alternators to offer these custom made to order options! Even better, theyre plug and play, no adapter wiring needed!

JS Alternators also requires their universal Big 3 wiring kit, or otherwise similar wiring upgrades in addition to the factory wiring in order to handle the higher output. The big 3 Wiring upgrade is an ADDITION to your factory wiring.
All factory connections need to remain connected. For protection, it is recommended to add an in line fuse to the positive wire. All grounds must be cleaned to bare metal and properly secured.

Big 3 wires are 1/0 gauge pure copper cables. 1 positive to connect from the positive stud on the alternator to the positive battery terminal. Other 2 ground wires go from the alternator mount bolt to frame/chassis, and negative on the battery to frame/chassis.

Most JS Alternators are custom built to order and typically take 5-15 business days to be built and shipped. All JS alternators have a lifetime warranty on labor, and 1 year warranty on parts.

Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin units feature premium bearings to withstand high engine rpm and utilize dual plate rectifier with 12 heavy duty diodes for improved cooling. Hairpin Units are a more reliable alternator to withstand high heat, high demand for car audio, marine, and racing applications.

Don't bet your engine and cooling system on subpar cheapo parts, especially when the OEM ones are so inexpensive! We have fitment listed for all UZ engines, and even the 1GZ V12!

If you're in there doing maintenance anyways, why not replace with brand new factory parts and get another 20+ years out of them??

Typically takes less than a week to ship out! If youre uncertain, please observe the above pictures and match yours to the correct fitment.

Although this is one of the most universal parts we sell, it's also one of the most interesting, and one of the few that we sell that has FAA approval for aircraft use! Most people just buy whatever oil filter they find and toss them after use. There's a better option however, especially if you plan on owning your vehicle for many years to come! 

Made in the USA with a billet aluminum housing and a stainless micronic medical grade mesh filter element that is easily serviced and cleaned, this is a great long term solution for your cherished ride. There's a number of advantages that come with using a high quality filter like this, instead of a generic spin on replacement.

• Easily tell the condition of the oil in your engine with every oil change. Instead of destroying an oil filter each time to inspect the contents, you simply wash out and reuse the same filter element.
• Filter element is reusable countless times, and easily cleaned with brake cleaner and/or soap and water
• Filter element includes a built in magnet to trap ferrous debris from circulating through the rest of your engine's oil system
• No more trying to loosen an overtightened oil filter! Every spin on filter includes a matching oil filter cap socket to easily loosen and remove, so no more fumbling and struggling with a filter that refuses to come out.
• As time goes by, oil filters become more and more expensive. Do you think your favorite oil filter will be the same price in a few years? It wont take long for this to pay for itself!
• Apocalypse proof! Even if supply chains get interrupted, you can keep on truckin' without having to worry about sourcing a replacement filter for your engine.
• Even if you miraculously somehow manage to damage the filter element, replacement ones are readily available and not expensive
• Better oil flow than regular paper filters, meaning less start-up wear
• Have more questions? Check out this extensive FAQ: https://kandpengineering.com/faqs/

Fits most engines we specialize in! Including 1JZ, 2JZ, 1UZ, 2UZ, 3UZ, 1GR, 2GR, 3GR, 4GR, and so many more