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These are GUARANTEED* to make your engine faster!

*These covers are absolutely not guaranteed to make your setup faster. Please don't believe this.

Who else but XAT?? We're starting an initial group buy on having all 4 timing cover pieces (both cam gear covers, mid cover, and lower timing cover) made in pure carbon fiber (no fiberglass). Carbon fiber is a known strong, yet lightweight material used on nearly every race car and high end exotic today!

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. Please check the diameter of the tensioner you have before ordering to verify.
• 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.

ITBs on any 98+ UZ engine! Fitment for any 1UZ VVTi, any 2UZ, and any 3UZ. As seen on Fredric Aasbø's 3UZ AE86!

This kit is now finished!

This price includes used throttles, new fuel rails, adapters, actuation rods, and TPS. You will need to make a custom cable connected to your gas pedal. First kits have already shipped! Uses S65 BMW 4.0 V8 throttles

Please note your water bridges will need slight clearancing for this kit to fit, and there's no way around that.

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

Overview

Breathtaking performance with ultra high efficiency – Bullet’s world first High boost upgrade for the 1UZ-FE utilizing the HTV1900 Supercharger.

Forget the M90 or M112, this is the Supercharger to have nestled confidently on your engine. This kit has been developed to meet the needs of those 1UZ VVTi and 3UZ owners chasing a real world 250kws+ at the wheels. The Harrop HTV1900 is a Roots-type supercharger manufactured utilizing the latest Eaton TVS (Twin Vortices Series) rotating assembly. The Eaton TVS rotating assembly features twin four-lobe rotors, twisted 160 degrees. By comparison, the original Eaton superchargers (for example – the M90) features three lobes twisted 60 degrees. The fourth lobe and added twist, when combined with redesigned air inlet and outlet ports, creates a smoother, more efficient flow of air into the engine. In addition to improved overall efficiency, the Eaton TVS supercharger has improved noise and vibration characteristics as well.

The HTV1900 kit is a true OEM style kit utilizing the renowned Bullet High Flow cast intake manifold. From the CNC cut top plate to the unique Bullet high flow rear entry, the Bullet kit is unrivalled in engineering precision and product development. The HTV1900 delivers maximum boost from ‘off idle’ all the way to the redline, maximum torque at lower engine speeds and drastically reduced air intake temperatures when compared to the M90 and M112. The HTV1900 can support boost levels in excess of 15psi and with the increase in efficiency, produces unlimited high rpm power that easily outperforms any other 1UZ positive displacement Supercharger kit on the market. Guaranteed.

For maximum gains, Bullet recommends a complete standalone engine management system to take full advantage of this Supercharger’s potential.

Forget the M90 or M112, the HTV2300 is the Supercharger to have nestled confidently on your engine. This kit has been developed to meet the needs of those 1UZ VVTi/3UZ owners chasing a real world 250kws+ at the wheels. The Harrop HTV2300 is a Roots-type supercharger manufactured utilizing the latest Eaton TVS (Twin Vortices Series) rotating assembly. The Eaton TVS rotating assembly features twin four-lobe rotors, twisted 160 degrees. By comparison, the original Eaton superchargers (for example – the M90) features three lobes twisted 60 degrees. The fourth lobe and added twist, when combined with redesigned air inlet and outlet ports, creates a smoother, more efficient flow of air into the engine. In addition to improved overall efficiency, the Eaton TVS supercharger has improved noise and vibration characteristics as well.

The HTV2300 kit is a true OEM style kit utilizing the renowned Bullet High Flow cast intake manifold. From the CNC cut top plate to the unique Bullet high flow rear entry, the Bullet kit is unrivalled in engineering precision and product development. The HTV2300 delivers maximum boost from ‘off idle’ all the way to the redline, maximum torque at lower engine speeds and drastically reduced air intake temperatures when compared to the M90 and M112. The HTV2300 can support boost levels in excess of 15psi and with the increase in efficiency, produces unlimited high rpm power that easily outperforms any other 1UZ positive displacement Supercharger kit on the market. Guaranteed.

For maximum gains, Bullet recommends a complete standalone engine management system to take full advantage of this Supercharger’s potential.

Benefits

• Bullet’s world renowned cast intake manifold with removable top plate
• Ultra High Efficiency HTV1900 positive displacement supercharger (Stage 2 kits use HTV2300, recommended only for built engines)
• OEM style installation
• Fits under standard Soarer bonnet
• Capable of boost levels exceeding 15psi
• Power in excess of 300 rear wheel kilowatts with intercooler is possible.
• Ideal kit for forged internals

Parts Included

• Harrop HTV1900 Positive Displacement Supercharger and bolt-on pulley (Stage 2 kits use HTV2300, recommended only for built engines)
• Bullet High Flow Cast Intake Manifold with removable CNC machined top plate
• Bullet High Flow Cast Rear Intake manifold
• Internal Bypass Valve with optional interchangeable boost delivery system
• Idler Bearing with mounting boss
• Engine and Supercharger 6PK Drive Belt
• New intake manifold gaskets, nuts and bolts
• New bottom Injector seals
• Intake piping to air cleaner with Idle air control valve provision
• Comprehensive Installation Instructions

Recommendations

• Haltech or Link ECU wired in conjunction with factory ECU
• Bullet Water to Air Intercooler
• High Flow Denso Injectors
• Bullet Heavy Duty Belt Tensioner Kit

Please note the intercooler kit is NOT a complete kit. You will need to plumb the lines up to a heat exchanger, which will depend on your chassis/setup.

Please note due to draconian laws, we are not able to ship these cat deletes to a California address. Please support the RPM act. Either pipe size choice can bolt on to a stock exhaust!

In house custom made bolt on UZ test pipes! These are confirmed as bolt on replacement GS400/GS430 pipes, and very likely fit a number of other 98+ UZ cars as well. We will add confirmed fitment to this listing as we confirm what other cars these replace. Price includes both sides for installation on 1 car.

• 3" stainless steel
• Stainless flanges
• Both pipes included
• 100% bolt on!
• Optional hardware includes 4 zinc coated grade 10.9 bolts and serrated nuts for the outlet, OEM Toyota hardware for the inlet as pictured.

Confirmed Fitments: 1998-2005 GS400, GS430, LS400 (with VVTi), LS430, and SC430

These are for off-road use only and are not meant for any on-road vehicles. Buyer is responsible for obeying all laws, local and federal.

You may get a check engine light/MIL/CEL code with these. Gaskets/hardware not included. We strongly recommend using something like permatex ultra copper to provide a better seal, rather than going through a number of aftermarket poor quality gaskets without luck. This is what we do with all of our own vehicles, and we have found the seal to be much better that way! Made in the USA!

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

One thing Toyota seems to have struggled with for a few decades was valve stem seals. We use these Viton stem seals on all 98+ UZ engines we build! That includes 1UZ VVTi, 2UZ (VVTi and non), and 3UZ engines.

If your engine smokes briefly at startup and at no other time, it's likely time to replace these.

Please make sure you select the correct engine, as the 98+ seals are different from the 89-97 ones

Once again XAT Racing is filling the gaps in the TOYOTA V8 market with another custom product made exclusively for all 98+ TOYOTA UZ series V8 engines! When building a high horsepower engine, a good focus is on the durability factor of the parts used to complete the engine. The engine's intake and exhaust valves are one of these areas needing to be more robust and/or improved upon when building sustainable power. XAT has one again teamed up with industry giant MANLEY to bring our new 1UZ vvti, 2UZ, 2UZ vvti, and 3UZ Stainless Steel valve kit to market! These valves are available in stock size, .5mm oversized, as well as 1mm oversized. Full stainless steel construction with a swirl polished finish for the best available fitment and performance factor for you, the valued XAT Racing customer. 

These valves come in a complete kit of 16 intake and 16 exhaust valves for one engine. Might take 2-3 weeks to make and ship out.

Both (left and right side) head gaskets for your UZ engine rebuild! We only offer multi layered steel head gaskets for these, as they're tried, tested, and true. Please note if you do not select the OEM size, this order will be for Cometic gaskets. It often takes 8+ weeks for those to be custom made.

Please note the head gaskets are some of the only parts different between the different UZ engines, and you will need to select which engine you need these for specifically. Some of the few parts that do not interchange between the UZ engines are the head gaskets.

1UZ VVTi gaskets fit 1UZ non VVTi as well!

Please note these are only for the non-VVTi 1UZ engine. The 1UZ VVTi, all 2UZ, and all 3UZ engines should look at the SuperTech kit instead, as they have better fitment.

This is the perfect solution for those looking to add more seat pressure for higher revs and larger cams in the UZ engine (non-VVTi and VVTI versions included).

This single wound spring will work perfect with the factory retainer and keepers. Coil bind is an immense 550 thousandths. We also have an option to include titanium retainers for a non-VVTi 1UZ. Please note that we currently only have BC retainers for the non-VVTi 1UZ engines. The VVTi engines use a different kit.

What does this mean? You can run more cam than the unmodified head will take! This spring is good to over 10,000 RPM with proper supporting mods. Seat pressure on standard 1UZ is 72 lbs, and in VVTi engines is 67 lb. Price is per set of 32 springs, for 1 complete engine.

Our genuine ARP Main Studs Kit includes all 20 Studs, 20 nuts, 10 side bolts, 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

1989-97 1UZ non-VVTi Fitment Includes:

• 10 main studs, 10 outside main studs, 20 washers, 20 nuts, 10 side bolts (usually reuse factory washers, though we include ARP ones), 2 packs ARP moly lube, instructions

1998-2010 1UZ VVTi and 3UZ Fitment Includes:

• 20 main studs, 20 washers, 20 nuts, 10 side bolts (usually reuse factory washers, though we include ARP ones), 2 packs ARP moly lube, instructions

1998-2011 2UZ Fitment Includes:

• 10 main studs, 10 washers, 10 nuts, 1 pack ARP moly lube, instructions

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 materials far above the usual aerospace quality others settle for in 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!

XAT offers this bearing adapter for all UZs (1UZ, 1UZ VVTi, 2UZ, and 3UZ) to Z33 or Z34 Nissan 350Z, 370Z, Infiniti G35, and G37 6 speed transmission (CD001 through CD009, CD00A, JK40C, JK41A, JK41B, 1EA0A, etc.) which also fits RWD SR20DET and KA24DE transmissions. This proper design allows user to not have to machine the bellhousing of the transmission for transmission input shaft support. Includes OEM Nissan bronze bushing, or optionally a roller bearing!

Fits all 1UZ, 2UZ, and 3UZ engines adapted to Nissan 5 and 6 speed trannies using our adapter plate, including KA24, SR20, and VQ35, including

6 speeds:

• CD001 
• CD003 
• CD005
• CD008
• CD009
• CD00A
• JK41A 
• JK41B
• JK40C
• 1EA0A
• 1EA0B

5 speeds:

• KA24
• SR20

We've offered the bushing for many years, and now in true Toyota fashion, we offer a needle bearing option as well!

Made in the USA!

Please note we are currently unable to supply these. Our best option right now is this listing: https://xatracing.com/XAT-UZ-Cams-regrind

Check out a video of a V8 with these cams idling here!

We have released our custom made billet VVTi UZ race cams!! For those looking for serious power gains and pushing the limits of their Toyota V8, we now have a solution. Don't settle for stock cam regrinds, do a proper build with purpose built camshafts from scratch! Please choose your specific engine application from the drop down menu. We make different versions of these cams for 1UZ VVTi and 3UZ fitment, 2UZ non-VVTi fitment, and 2UZ VVTi fitment. This includes all 4 cams for 1 engine.

Forced induction (turbo or supercharger) cams have .428” (10.87mm) peak cam lift with 285 intake and 289 exhaust cam duration and 54 degrees of overlap. These are great for high HP N/A builds and forced induction projects!

Factory VVTi cams have 8.6mm and 250/260 duration, for reference

Cams can be ordered in VVTI and non-vvti versions., We now have fitment for all 98+ UZ fitment variations! These all will retain VVTi compatibility, and if need be, VVTi can always be disabled d own the road.

For the manufacturing process, we start with proprietary cast iron billets, CNC machine the lobes, and finish off with double heat treatment, 5160 induction hardening, and Tufftriding.

Please note you need to have your head machined to fit the race cams for lobe clearance. The forced induction cams do not require this modification.

The plugs at the end of the cams are included. Your scissor gears will also get reused from your original cams. The last 2 pictures show actual TRD heads and where they had to machine to install performance cams for example

Cam card details: https://xatracing.com/xat-camshaft-cam-card-details

1GZ R-154 R150 R151 R150F R151F 5 Speed Adapter 

This kit is specifically built around any 98+ UZ V8 engine, however there will be some other considerations depending on the chassis it is being installed in. Engine coolant and intercooler hoses may need to be routed differently depending on your application. As such, we do not provide this as a 100% plug n play kit for every application.

Installed height is just about 11 inches over the block.

You will need to modify the front water bridge to clock the coolant hose, as is normal for a positive displacement supercharger on a UZ. You will also need a 3UZ rear water bridge as well to remove emissions equipment to fit this kit on a 2UZ. 

You will absolutely need a built bottom end with this kit as well. This kit CANNOT be safely ran on stock injectors, pistons and rods, nor on a stock ECU tune.

Includes:

• Whipple 2.3 liter W140AX supercharger with 3.5" pulley
• Supercharger idler pulley
• Secondary supercharger idler bracket and pulley
• Elate supercharger manifold
• Intercooler
• Serpentine belt

Absolutely NEVER legal in California. No CARB exemptions, and not EPA friendly. As such, this is strictly for OFF ROAD VEHICLES ONLY.

As we continue to build the Toyota V8 market more and more, we also continue to push the edge and develop the best new parts. Check out the XAT Racing exclusive dry sump oil pan and oil pump bracket! This oil pan will fit any UZ engine (1UZ non-VVTi, 1UZ VVTi, 2UZ, or 3UZ) and is made to use the Moroso dry sump oil pump. We modeled this kit after the actual setup the original TRD UZ V8s used in the early 00s in IMSA!

Please note, this is not a complete bolt on kit. Each kit would need to be unique to each chassis. Expect to sacrifice your A/C compressor for this, as it mounts the oil pump where the air conditioning compressor is normally located.

Brand new OEM spark plug tube gaskets (that go in the valve cover) for all 89-97 or 1998-2010 UZ engines! Includes both sides, left and right. Keep your oil in the engine, not leaking out!

Please note the 89-97 ones are different from the 98-10 ones

Performance cams for different stages of modified 1UZ VVTi and 3UZ engines with various upgrades. Choose your preference from the dropdown menu option! Despite what you may have read, these cams do NOT work with 2UZ engines.

• 208-FI | 254/264°: 9.60mm/9.50mm High Performance cams for mild turbocharged or supercharged Toyota 1UZ-3UZ VVTi engines. Still maintains good drivability and throttle response for street cars, retaining full use of the VVTi system. Suits single 58-64mm turbo or twin 48-54mm turbos. Supercharger such as the HTV1900. Improved mid-range power over OEM cams. Great with E85 and similar ethanol blend fuels. No cylinder head clearancing required. Valve spring upgrade required. Kelford Cams recommend KVS1UZ valve springs
• 208-T | 265°/270°: 10.60mm/10.60mm Serious Turbo camshafts for 1UZ / 3UZ VVTi racing engines producing 750+hp. Single turbo sizing 64mm+. Twin turbo sizing 54-58mm. Great with E85. Valve spring upgrade required. Must use KVS208 valve spring and retainer kit if 30+psi boost and 8000rpm
• 208-A | 251°/251°: 8.35mm/8.30mm Performance cams for near stock Toyota 1UZ-3UZ VVTi engines. Good upgrade for street cars, tow vehicles or jet boats to improve low to mid-range power. Designed to drop-in on OEM valve springs. Retains full functioning VVTi movement. Maintains good drivability. For high mileage engines Kelford Cams recommend KVS1UZ valve springs
• 208-B | 264°/258°: 9.60mm/9.50mm Good upgrade for street cars to improve mid-range power. Still maintains good drivability. Retains full use of VVTi system. Designed to work with stock head casting. Requires upgraded valve springs. Kelford Cams recommend KVS1UZ valve spring.
• 208-C | 272/270°: 11.20mm/10.60mm Racing cams for modified NA Toyota 1UZ-3UZ VVTi engines with 10.5:1+ compression ratio. Must have ITBs or free flowing intake manifold. Must have free flowing exhaust system. These cams suit engines revving to around 8000rpm. Cylinder head needs machining for clearance around bucket bores for high lift cam lobes. Requires valve spring upgrade and retainer to seal clearance modification. 0.040" smaller than OEM base circle diameter, 33mm base circle diameter Please check piston to valve clearance, will require OEM piston valve pockets machined for extra clearance, or use of aftermarket racing pistons. Kelford Cams recommend KVS1UZ valve spring.
• 208-D | 282/276°: 11.60mm/11.00mm NZ superstock stage 1 naturally aspirated racing cams to suit engines making around 450hp. Designed to suit engines built to Speedway NZ rules, 10:1 compression ratio. Cylinder head needs machining for clearance around bucket bores for high lift cam lobes. Requires valve spring upgrade and retainer to seal clearance modification. 0.040" smaller than OEM base circle diameter, 33mm base circle diameter. VVTi system must be deleted. Kelford Cams recommends KVS208 valve spring
• 208-E | 292°/290°: 12.00mm/11.40mm. NZ superstock stage 2 racing cams to suit professionally built naturally aspirated racing engines making around 550HP. Revving to around 9500rpm. Designed to suit engines built to Speedway NZ rules, 10:1 compression ratio. Cylinder head requires modification. Cam base circle is 0.060" smaller than OEM, cam base circle diameter is 32.5mm. Must use KVS208 valve spring and retainer kit.

Check out a video of a V8 with these cams idling here!

Unfortunately due to supplier issues, we've had to discontinue our billet UZ cams indefinitely. Our only other option is to re-grind factory cams to custom specifications.

Cams can be ordered for VVTI or non-VVTi engines., We now have fitment for all 98+ UZ fitment variations! These all will retain VVTi compatibility, and if need be, VVTi can always be disabled down the road. You will either need to send us your cams, or we can supply a core set for you.

For the manufacturing process, we start with proprietary cast iron billets, CNC machine the lobes, and finish off with double heat treatment, 5160 induction hardening, and Tufftriding.

Depending on how aggressive of a cam you choose, you may need to clearance in the head and bucket area for the bigger lobe to fit. Please note you need to have your head machined to fit the race cams for lobe clearance. The last 2 pictures show actual TRD heads and where they had to machine to install performance cams for example

Cam card details: https://xatracing.com/xat-camshaft-cam-card-details