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These retainers finish up the valve springs for higher HP, more abuse, and higher RPM in your Toyota/Lexus 3UR-FE engine. These are not required when installing our exclusive in house billet cams, however we strongly recommend installing valve springs and retainers while you are in the engine and upgrading it.

Fits 2014-2020 3UR 5.7 Tundra & Sequoia, 2017-2019 Land Crusier 200 series 5.7, and 2007-2019 Lexus LX570

Harrop is proud to offer the innovative TVS2650 Supercharger Kit to suit the Toyota 3UR-FE 5.7L V8 found in global vehicle platforms like the Toyota Tundra, Landcruiser 200 Series and Lexus LX570. The Australian engineered and manufactured Supercharger Kit utilises the largest, most-efficient rotating group ever produced by Eaton, the TVS2650, which is 40% larger than the TRD TVS1900 supercharger (2650cc VS 1900cc).

As a master distributor of Eaton Supercharger and Traction products, Harrop has experience with the 2650 rotating group, being the first Australian Supercharger system to feature the technology for the LS series of engines.

Harrop FDFI (Front Drive, Front Inlet) Superchargers feature extensive upgrades to the cooling system, to ensure optimum thermal efficiency with the inclusion of twin intercooler cores in the manifold integrated with a front mount radiator and high flow Bosch intercooler pump. The improved intercooler system provides greater thermal and volumetric efficiency to unleash the performance potential of the 3UR-FE 5.7L V8.

Includes all components required for installation into Toyota Tundra, Land-Cruiser 200 and Lexus LX 570 with 5.7L V8 Engines. As well as a direct upgrade for the Toyota Tundra TRD 1900 or Aftermarket 1900 Supercharged variants. 

• Supercharger intake manifold including twin intercoolers
• Harrop TVS2650 FDFI Supercharger with RH inlet cover – Toyota throttle bolt pattern
• 8PK FEAD idler bracket, Coolant cross-over pipe, 8PK Supercharger drive belt
• Replacement high flow injectors for Stage 2
• Replacement high flow fuel pump for Stage 1 & 2
• Plug-in wiring looms for all necessary engine sensors – IAT breakout from MAF sensor, Throttle loom extension and Intercooler pump loom
• Front-mount intercooler radiator, Electric Intercooler pump, Coolant Reservoir and moulded hoses
• Interfaces with OE TB, Air-box and FEAD
• Retains all factory ancillaries including A/C, Viscous engine fan and Power Steering
• Fuel-rail option includes additional machined injector bosses in the manifold, fuel-rails and mount brackets.
• Kit is Hardware kit only and does not include a calibration.
• Stage 1 factory calibration available - refer Tech Guide for more information.

Please contact us for availability on your specific needs, so you can plan your build accordingly! Expected wait time is typically 6-8 weeks or longer

Our custom built 3UR engines with oversized bore (looking for 6.8 liters?!) are typically made by JE. We have these custom made to spec, and if you have a specific idea in mind for bore size and options, we can make it a reality!

JE Pistons opened its doors for business in 1947 with one simple objective, to supply the racing community with the highest quality pistons and components available in the marketplace. Although times, people and equipment have changed, their objectives and goals have remained constant. Today, JE is the largest manufacturer of custom forged racing pistons in the world. Offering the shortest lead times in the industry and a 98% order fill rate, JE is the definitive source for all of your high performance needs.

The JE complex encompasses the most modern performance piston manufacturing equipment in the industry. JE’s implementation of the most advanced CNC machining technologies available, emphasizes their commitment to deliver the highest quality pistons, pins, rings and components available today. Industry leading processes like Ultra Crown®‚ a digital three-dimensional piston crown machining process, and Ultra Groove®‚ a machining operation that provides unprecedented flatness of ring grooves (tolerances to within millionths of an inch), are some examples of that commitment.

JE designs are specifically engineered for extreme applications up to, and including, professional competition. In this environment, the higher compression ratios, highest boost or heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy. Features: Dome/Dish requires no deburring or preparation and feature smooth flowing radii for excellent flame travel. Pin fitting, wire locks, and rings included

OEM 2UZ crankshaft sensor! Fits all 98+ 2UZFE engines, VVTi AND non-VVTi

Nobody else makes these. So why wouldn't we?? XAT now offers billet main caps for the latest Toyota V8s! If you're looking to build the baddest UR on the planet, look no further. Whether you're building a VIP LS, a quick GS, a rock crawling GX, or a beastly Tundra, Land Cruiser, or Sequoia, we can help build and assemble your motor for you to handle however much power you are aiming for! We've installed these on a few built engines now, and we're looking forward to continuing that trend!

Keep in mind, as with all main cap replacements, you will need to have your engine line bored after installing these.

Quick version of what you'll need:

• T56 style throw out bearing
• Pilot bushing adapter (included with transmission adapter)
• Nissan 6 speed
• Our flywheel (no other ones will work)
• 300ZX TT clutch
• 3UR serviceable bellhousing with 12 bolt trans flange

The BC stroker kit for the Toyota 3URFE engine platform incorporates a 108mm stroke, steel billet crank, choice of BC 625+ Pro Series or ProH2K Billet rods. Depending on bore size that you decide, the BC kit will take you up to a 6.80 liters with 100mm bore sleeved block. As usual, each BC kit features custom CP or JE aluminum forged pistons, 9310 alloy wrist pins, ring pack and buttons.  

This kit will stroke your 5.7 3UR to a 6.0! If used in conjunction with the Darton Sleeves, you can get up to 6.8 liters out of it!!

Kit includes stroker crank, set of 8 CP/JE pistons (with rings and wrist pins), and set of 8 BC rods

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.

Full bearing kit to rebuild your big block Toyota! ACL does not currently make a thrust washer for the 3UR, so we have been using OEM ones for in house and customer engine builds. 

Includes rod bearings, main bearings, and thrust washers.

Fits 2007-2015 Tundras and Sequoias with 3URFE and 3URFBE 5.7 liter V8!

We try to keep a set of these in stock, but please be aware there may be a 10-12 week backorder if we do not have a set ready to ship. Feel free to reach out to us to verify stock before placing your order.

Open up your 3UR to more power and torque with these 1.875" (1 7/8") stainless long tube headers! This kit also includes a stainless 3" connector pipe with high flow cats, so you can keep your CEL off and not have a stinky exhaust.

Please note the standard race headers are not road legal; this is an off-road, race only assembly. Don't expect to be able to ship these to California especially! 

If you plan on driving on the street, you will want the GREEN version instead. The race high flow cats are also not designed to be used with a turbo or supercharger. 

At long last, aftermarket rods are available for these massive Toyota engines! BC calls these their PRO-H rods (H-beam), and they come in 2 flavors.

For most builds, the 2k version is all that's needed. The ProH2K is rated in excess of 1400 HP and priced for the everyday performance enthusiast who isn't going to the moon, using ARP2000 rod bolts.

Anyone looking to pump it up to the next level would want to opt for the ProH625+ version, which uses Custom Age 625+ fasteners instead of the ARP2000s. They cost a bit more, but they're rated at 2000 HP and should be able to handle anything you can throw at them!

Select your specific UR engine application from the dropdown menu!

For those that need more electricity than the stock alternator 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.

We have been offering these for a few years now with superb results! These are not simply overpriced regrinds of stock cams. There are machined from new billet cores.

These cams will be for anyone looking to get the most out of their Tundra, Sequoia, LX570, GX460, Land Cruiser, etc. with the 3URFE, 3URFBE, or 1URFE engines. 

If you've already done basic mods like intake, exhaust, and tune, this is the logical next step for you to have some noticeable gains, however you can expect to need at least an upgraded valvetrain to run these. We cannot confirm fitment with the LS460 and GS460 car 1UR-FSE engines. DO NOT expect them to drop in without modifications. We DO make 1URFSE specific cams as well

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.

Pictured is one set from the actual run of UR cams made!! We have just a few sets left in stock, as these are low production numbers. Once they leave, there may be a few weeks wait time before we get more in. Don't forget to install the "freeze plug" caps at the end of the cams during installation.  

Cam specs for factory cams:
236 duration, 6.36 cam lift intake
236 duration, 6.27mm cam lift exhaust

Cam specs for XAT RACE cams:
282 duration, 7.17 cam lift intake, 245 duration at .050"
286 duration, 7.17 cam lift exhaust, 247 duration at .050"

With the factory rocker ratio, that's 10.76mm of valve lift with our cams! As such, you should verify clearance with your pistons and these cams. In most cases, you may need custom pistons.

LISTING IS FOR HEAD STUDS FOR 1 COMPLETE ENGINE, BOTH HEADS! Head studs need to be torqued to 60 ft/lbs 

XAT Racing leads the world in Toyota/Lexus V8 parts! One of the most important and integral upgrades when squeezing more power out of the UZ engines is to go with better fasteners. We've developed a custom kit (not just reused other kits) to give your V8 a bit more room to work with safely, especially if you plan on boosting it!

What's important about these ARP studs? The factory bolts are torque to yield, meaning they are purposefully stretched after one use, and cannot be safely reused. These ARP studs can be used countless times in multiple engine builds, provided they are not stretched.

Studs also give you a more solid clamping force over bolts. Check out the excerpt from ARP's catalog for an explanation we have in the pictures! 

For those looking to run more boost, more power, or just want added safety, we have also developed an ARP2000 version of our head stud kits! The added tensile strength of the ARP2000 material lets you torque the studs down further, giving you even more protection from lifting the heads and/or blowing a head gasket.

Please note that you may have to shave 2 of the head studs down for each head a small amount for the scissor gears for 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 not be accurate

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 main 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 

Please note that the 1UZ non-VVTi version will have 10 studs that are 8740 instead of ARP2000, and the side bolts will also not be ARP2000. This should not have any adverse effect on performance. The 8740 studs get torqued to 60 ft lbs instead

Working with one of the biggest names in the industry, XAT Racing has commissioned a set of valve springs and retainers made specifically for the 3UR 5.7 V8 from Toyota/Lexus! These arent simply reused springs from a different application, these springs are purpose built to drop in to your 3UR-FE and 3UR-FBE engine. These will fit all 3URs as well, no matter if it is from a Tundra, Sequoia, Land Cruiser or LX570!

Dont forget to opt for the titanium retainers as well! Base price is for springs only.

These are not required when installing our exclusive in house billet cams, but are strongly recommended. We also strongly recommend opting for the titanium retainers to help reduce valvetrain weight and keep everything locked in. After all, you wouldnt want to go through the effort to upgrade the springs just to leave out the retainers, right? You could add them later...if you want to rip your engine back apart again..

XAT Racing has brought to market our Stainless Steel intake and exhaust valve kits for the TOYOTA/LEXUS 3UR and 1UR engines. If you're building a high horsepower engine, these valves are a must for dealing with the intense heat that a supercharger or turbo will be adding to the combustion process. Swirl polished heads, hardened tips, and chrome plated stems ensure years of durability and performance from these valves. We offer these kits in standard size or +.5mm oversized.

Standard Size kit will include 16x Intake valves at 38mm head size, 16x Exhaust valves at 32mm head size

Oversize kit will include  16x Intake valves at 38.5mm head size, 16x Exhaust valves at 32.5mm head size

These kits fit the TOYOTA/ LEXUS 5.7L 3UR  V8 engine, the TOYOTA/ LEXUS 4.6L 1UR-FE V8 engine found in the TUNDRA, SEQUOIA, GX460, LX570, LANDCRUISER 5.7 and 4.6L, and the LS460 Middle Eastern spec with the 1UR-FE engine.

Ever have an engine come apart at high RPM? Well, we haven't. At least, not due to rotating assembly vibrations. We've partnered with the biggest name in the industry yet again to release an 800+ HP capable harmonic balancer for all 3UR-FE and 3UR-FBE 5.7 liter "big block Toyota" engines. That includes Sequoia, Tundra, Land Cruiser, and LX570.

You will have to grind down the factory washer for clearance on the factory crank bolt for this to fit properly. We typically use a belt sander and hold it at a 45* angle to shave the OD. There is no other easy option for this

Please note this does not work with 6 rib belt 1UR engines. We are still working on a solution for the small block 4.6.

We now stock a special 7" overdrive diameter pulley for high boost applications with a supercharger! A larger pulley while keeping the included blower pulley the same size will spin the blower faster and make more boost. WE STRONGLY RECOMMEND NOT DOING THIS UNLESS YOU HAVE A BUILT ENGINE WITH AFTERMARKET RODS AND A SOLID TUNE. 

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 UR engines. Regardless of what chassis your engine is out of, we service them all! LS460, LS600h, LC500, LX570, GX460, Land Cruiser, Tundra, Sequoia, etc.

Please keep in mind that your heads will likely require extra work: heads will typically need to be decked, 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.

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 7,000+ RPM, more RPM would be possible with proper optional valve train.

XAT has teamed up with Manley Performance to provide and develop top level valvetrain parts to build with. Includes brand new Ferrea valve locks as well!

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

Radium Engineering 10AN low profile swivel fittings simply press-in. No drilling or welding required. Please note these are priced each, as you will need to mix and match depending on your engine model. There are 4 different types of fittings, you will need to choose each type that fits your application.

FEATURES
-Stainless/Aluminum Construction
-Low Profile 10AN Male Fitting
-Anodized and Laser Engraved
-Swivel Action with FKM O-Rings
-Simple Press-Fit Installation

Refer to the table picture for fitment information with popular Toyota engines. If an engine is not listed, fitment information has never been confirmed.

20-0408 COMPATIBILITY
Toyota 1JZ-GE VVT-i
Toyota 1JZ-GTE VVT-i
Toyota 1JZ-GTE Non VVT-i
Toyota 2JZ-GTE VVT-i
Toyota 2JZ-GTE Non VVT-i
Toyota 2JZ-GE Non VVT-i
Toyota 2JZ-GE VVT-i (2000-May 2002 ONLY)
NOTE: 20-0408 will work in many Toyota/Lexus models, some are listed below. If the PCV valve is mounted to the valve cover with rubber grommet P/N: 90480-18001 (shown below), than Radium P/N: 20-0408 will work.

4RUNNER
ARISTO
CAMRY
CARINA 2
CELICA 5S-FE
CELICA 7A-FE
CELSIOR
CHASER (excluding 2JZ-GE VVT-i)
COASTER
COROLLA SPRINTER
CORONA FR
CRESSIDA
CRESTA
CROWN (excluding 2JZ-GE VVT-i)
ES300
GS300 (excluding 2JZ-GE VVT-i)
GS400
GS430
HIACE S.B.V
HILUX
IS200
IS300 (2000-MAY 2002 ONLY)
LAND CRUISER
LS400
LS430
LX470
MARK II
MARK II BLIT (excluding 2JZ-GE VVT-i)
MR-2 5S-FE
ORIGIN (excluding 2JZ-GE VVT-i)
SC300
SC400
SC430
SEQUOIA
SOARER (excluding 2JZ-GE VVT-i)
STARLET
SUPRA 2JZ-GTE
T100
TACOMA 3RZ-FE
TACOMA 2RZ-FE
TUNDRA 2UZ-FE

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.

APPLICATION: 1993-1998 Supra 2JZGTE (Turbo), 1JZGTE, and 2JZGE (Non-Turbo), IS300, GS300, SC300, etc.

PLEASE CHECK AND VERIFY (MATCH) THE PLUG YOU HAVE ON YOUR ALTERNATOR

This alternator is 100% plug n' play, direct fit, with no adapters, spacers or rigging like other kits. This is not a Sequoia alternator, which does require modifications to fit.

As you may know, the stock 1993-1998 Supra alternator provides 90amps/105amps (6sp/auto) of current flow at maximum output. When you install electric fan's, a cranking stereo system, and other electronic gadgets this presses the factory alternator to it's limits.

In some situations with the air conditioner running, electric fans going, dual fuel pumps, and more, there is simply not enough current to keep the battery at a constant state of charge. If you mix-in a large current draw from car stereo amplifiers, your electrical system will stop producing enough current, voltages across the system which drop to the lower end of the scale, and major issues can (and will) happen!

The last thing in the world you want is your aftermarket equipped 2JZGTE running big boost on multiple fuel pumps with all your other goodies on and then lose some current to the fuel supply! As Goose said to Maverick in Top Gun, "this is not good, Maverick."

We have looked for quite some time for an upgraded alternator that was robust, had increased current capacity, good-looking, cost-effective and would fit properly in the 1993-1998 Toyota Supra! Well, good news is that we have just the units! Our 155amp HOT RATE alternator kit is now available. The alternators are tested HOT, which means the output is guaranteed during typical automobile standard conditions. Most every other manufacturer releases their current ratings COLD, which can change the current output vs. hot by 10-15% simply on resistance losses at higher temperatures.

Fit and finish are excellent and it is a plug-n-play installation.

These units do not require a core charge. We usually stock these, but even if out of stock, build-time is only 72 hours. Six month warranty.

* Custom hand wound heavy gauge stator with high temp. insulation. Fully re-manufactured.

* Highest quality Internal electronic voltage regulator.

* Oversized bearings with high temp. grease for durability.

* Heavy duty rectifier plate with high amp diodes.

Our alternators are hot-rated, not cold-rated like all the other guys, which translates into, real-world amperage ratings.

These units are completely re-manufactured from original units (see above bullets for highlights)internals rebuilt and then the magic begins. As with any alternator they produce current based upon the coil windings and rpm's. The coil windings is where the current capacity is created, so it is based upon the capacity of the wire and number of windings on the coil.

Without over simplifying the process, we simply use a higher current (and more expensive) wire and provide additional windings inside the unit. The higher quality wire allows more current and heat to be handled, and the increase in quantity of windings increases the overall capacity. Then the internals are matched with higher capacity components for a matched-internal device with external results.

Bottom-line: you get a re-manufactured alternator, designed to produce more clean current then the factory original.

For 1JZGTE owners, this is NOT the 2JZGTE alternator, it is a 1JZ with the correct round 3 pin plug for the JZA70 Supra and is rated at ~140 AMPS. 50 more amps than you stock unit! If your 1JZGTE alternator is from a Soarer or Chaser, then please select the appropriate version from the drop down menu. 1JZ owners, please include what style connector your harness has, round or oval/rectangular

Application Note: This alternator will fit all 1993-1998 Supra Turbo and Non-Turbo Supra's, both automatic and 6 speed, Japan Spec, UK Spec, Euro Spec and US Spec. Direct fit, period.

International shipping: You will notice we have an international shipping option available in the drop down menu. While we cannot quote every country with this, it is good for much of the UK, Australia (eastern) and a few other nations. If you order the international option and for some reason the shipping is a bit more, we will notify you for your approval.

Link continues to gain traction in the UZ Toyota/Lexus V8 market, and rightfully so! They have an excellent selection of options available, and are an XAT favorite when it comes to engine management. Why pay extra for the AEM name when Link is just as (or even more) capable?? From now, on, you can expect all XAT projects to be powered by Link ECUs.

Each harness is custom made to order, so please be patient as you can expect a 1-2 week wait time for manufacturing typically. Please feel free to reach out to us beforehand and let us know what kind of application this is for. Swapping a 1UZ into an S13 or S14 240SX? Putting a 2UZ in a Tacoma/pickup? Factory Crown Majesta or GS430 getting "the beans?" Let us know so we can be sure to have the right harness made for your project.

This is not for a full engine harness, does not include ECU or sensors. This listing is for a plug-n-play adapter to fit your factory harness, whether it remains untouched or is rewired for a swap. Depending on your plans, you may need other parts as well for everything to work properly. If you're boosting it, you'll no doubt want MAP and IAT sensors to go along with it. Although superior up and down, the VVTi engines also have additional considerations over the non-VVTi, and reaching out to us via phone or email (sales@xatracing.com) is the best way for us to get you situated with what you need.

Please reach out to us with any and all questions, as your application may need more consideration or wiring than standard

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.

High performance ACL bearings for your big block Toyota V8! We use these with every engine build we do. One of the best names in the business

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

Please include which year and model you have so we can get you the right version of the kit!

THE BIGGEST, THE BADDEST, MOST EFFICIENT, MOST POWERFUL SUPERCHARGER SYSTEM!!

Counter rotating churros to make your Tundra V8 SING!

Since 1987, Whipple Superchargers™ have been the pioneers and leaders of supercharging domestic V8 engines. Whipple’s team have now engineered the most powerful intercooled twin-screw SC system available today for your Toyota V8 Tundra engines. Featuring the new, 4th generation Whipple 2.9L supercharger with an all new rotor profile and new high flow rotor housing to unleash even more power than ever before. With all the latest technology, biggest SC, biggest intercooler, biggest heat exchanger, the all new system makes more power than any other positive displacement supercharger system on the market giving you tire frying, neck whipping power that will give you a grin from ear to ear. The new system is 100% complete and is designed for stock engines but has enough capability to work with heavily modified engines.

The all-new system features Whipple’s massive oversized air-to-water intercooler for unmatched cooling capacity, the massive 2.9 liter Whipple twin-screw supercharger that reaches 99% volumetric efficiency, 102mm built in inlet, high flow intake manifold and industry leading power potential. The unique bypass system offers less than 1hp of consumption during cruising for excellent fuel economy. The system also includes high-flow fuel injectors, flash tool, oversized heat exchanger, high flow intercooler pump and unique intercooler water reservoir. While others claim, Whipple Superchargers simply deliver more power per pound of boost than any other supercharger on the market today. 

THIS PRODUCT MAY BE USED SOLELY ON VEHICLES USED IN SANCTIONED COMPETITION WHICH MAY NEVER BE USED UPON A PUBLIC ROAD OR HIGHWAY, UNLESS PERMITTED BY SPECIFIC REGULATORY EXEMPTION (VISIT THE “EMISSIONS” PAGE AT HTTP://WWW.SEMASAN.COM/EMISSIONS FOR STATE BY STATE DETAILS.

LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY.

IT IS THE RESPONSIBILITY OF THE INSTALLER AND/OR USER OF THIS PRODUCT TO ENSURE THAT IT IS USED IN COMPLIANCE WITH ALL APPLICABLE LAWS AND REGULATIONS. 

THIS POLICY ONLY APPLIES TO INSTALLERS AND/OR USERS WHO ARE LOCATED IN THE UNITED STATES, HOWEVER CUSTOMERS WHO RESIDE IN OTHER COUNTRIES SHOULD ACT IN ACCORDANCE WITH THEIR LOCAL LAWS AND REGULATIONS.

WHIPPLE SUPERCHARGERS EXCLUSIVE FEATURES

• Most powerful bolt-on available, 6-7psi makes over 185+ horsepower over stock 
• No other upgrades required, just massive power right out of the box
• Front entry Gen 4 W175AX (2.9 liters) Whipple twin-screw supercharger that significantly outperforms competitions 1.9L roots-type systems
• Integrated Crusher™ 102mm round inlet outflows smaller 80mm inlets such as other Eaton based systems
• Massive air-to-water aluminum bar-plate intercooler offers more cooling than any other positive displacement system available
• Whipple Superchargers massive oversized intercooled air-bypass system for industry leading reduction of burst knock and incredible fuel economy, no ridiculous fabbed steel tubes or systems that circulate hot air
• High flow electric intercooler pump, nearly double the flow of competitors Bosch
• Self-contained oversized oil system for dramatically reduced oil temps in even the most demanding conditions
• Exclusive 3x5 rotor combo for significant increase in airflow under the curve than less efficient 4x6 rotor combo
• Center discharge port for better cylinder to cylinder distribution then other twin-screws with cobbled together billet adapters and forward facing discharge
• Discharge down design allows for less pressure loss which gives more power at lower boost levels
• Top mount design allows for cooler operation then upside down SC's that conduct heat from engine and are trapped by runners and covers, causing hotter manifold temps and less power per pound of boost
• Flat torque curve for incredible acceleration
• Oversized heat exchanger for incredible intercooler water temps
• No internal engine modifications required
• Completed installation looks factory installed
• Kits come complete with all necessary parts and hardware for installation
• Unique oil level sight glass for easy oil level and quality check, no dipstick to bind or misread
• Plug and play wiring with male and female connections
• High flow fuel injectors included
• Proven 8-rib belt system with adjustable idler system for easy belt changes and multiple pulley configurations
• OEM quick connect fittings for easy installation, no ugly brass or steel fittings on the SC
• Complete kits, Competition kits and Hot Rod kits available
• Available in wrinkle black, polish or any custom color
• Easily upgradeable with big cold air intakes and bigger throttle bodies
• Instant boost at the touch of the throttle
• 3 minute pulley changes
• Flash tool that allows you to read and erase codes and multiple data log features (complete only)
• 1 year warranty

These are custom made to order. Expect to send in your original harness, and minimum of 10 week wait time