1 UZ/ 2UZ Swap
All the parts listed here will fit the 90 thru 95 Toyota 4Runner and the 89 thru 94.5 Toyota truck that came originally with the Toyota 3.0 3VZ V6 engine. Some of these parts will fit the earlier models 3.0 3VZN trucks and 4runners, 4cyl rigs as well as later model vehicle that came with the 3.4 5VZ engine, but these may need slight modifications. Most of our parts will fit the 2UZ engine as well. Questions just ask!
If your looking at installing a 1UZ or 2UZ into another Toyota truck or SUV feel free to contact us and we would love to help you get your rig running.
If you have questions about installing a bell housing and flywheel/clutch kit; radiator, or wiring harness please visit the product installation page. We will be adding more write ups on product installation here soon. If you purchased a part and need assistance with installation please feel free to contract us and we will walk you thru the installation process.
Our flywheel is a brand new 27lb billet steel direct fit drilled flywheel designed to correctly fit the 1UZ/2UZ crank bolt pattern. The flywheel is 5 pounds heavier than a stock 3vz cast flywheel. This flywheel will provide more low end torque and maintain better engine speed while on and off road. This flywheel is designed to use a commonly available 3VZ pressure plate with the 3.4 throw out bearing for proper engagement of the clutch. Our flywheels are designed, machined and built in the USA.
We have a run of seconds on flywheels. Please see our New, Used, Demo page for details!
Flywheel: item number NWT- 01 $439 plus shipping
Duel Comp Clutch Kit 3VZ 1988-1995 (9 1/4″)
This was developed for both street and off-road racers requiring a more aggressive clutch without giving up every day drive ability. The key to this kit is the clutch disc. One side has metallic pucks for a positive hold and the other has our Pro clutch fiber lining providing a smoother engagement to retain drive ability.
We recommend this for street vehicles with high horsepower engines. This clutch is stiffer than stock, but not as stiff as our metallic clutch kit. Clutch kits come with the pressure plate, clutch disk, pilot bearing, modified 5VZ throw out bearing, and a new alignment tool. You will need the 3vz pressure plate and the throw out bearing from a 5VZ for proper clutch engagement. This kit puts all those parts together for you in nice package and takes the ordering of multiple items away and saves you money over ordering them separately.
2100lb clamp force /HP limit 385 / Torque limit 385 ft. lbs.
Clutch kit to include: disc, pressure plate, pilot bearing, throw out bearing $429 item number NWT-02 plus shipping
Replacement throw out bearings $89 item number NWT-03 plus shipping
options: new flywheel bolts $39.95 or new pressure plate bolts $25.95 plus shipping
3.0 3VZ to 1UZ motor mounts. After several attempts to build a one size fits all 1UZ motor mount for both IFS and SAS trucks, we built the perfect mount for the 1UZ in the tight Toyota engine bay. This mount is completely bolt on! This mount places the engine as far back in the engine bay as possible to leave room to work at the front of the engine, and up high enough as to allow engine to fit with IFS rigs. This kit does require slight modification of the steering relay rod, transmission cross member, and a small 1″ body lift is required. You must also use your 3.0 isolator pads. These are shipped in raw steel. Our motor mounts are designed, machined, and built right here in the USA.
Motor Mount: $199 item number NWT-04 plus shipping. Please specify V6 or 4cyl as original engine in vehicle.
Bell housings- We have a cast aluminum bell housing that will mount to the 1UZ engine and Toyota R150 5 speed transmission found behind your 3.0 and 3.4 Toyota. Our bell includes the bell, output extension, and pivot mount. The master cylinder mounting area is over sized in height and mounting location for the master cylinder. The mount is pre drilled for a master cylinder, however you may need to trim, re-drill and tap, new bolt holes depending on the master cylinder you choose to use.
Bell housing for R150 from 3VZ 3.0: $ 549 item number NWT-06 plus shipping.
Bell housing for R150 from 5VZ 3.4: $649 item number NWT-06A plus shipping.
We offer custom built radiators for the truck and 4runner. This aluminum radiator will supply the cooling capacity needed for those long hot days at the beach or the trail. Our radiators offer duel row tubes that are 1″ in diameter. Our tanks are formed and TIG welded together so there is no epoxy on these tanks! These radiators are also designed with nutserts so you can order only the radiator and add the shroud, or the a/c system as you need or want them. This will save you time and money. Our radiators do require modification of the core support and front cross member. These units are designed, machined, and built right here in the USA and have a 5 year warranty!
Radiator: $ 495 item number NWT-07 plus shipping
Radiator with internal tranny cooler $575 item number NWT-08 plus shipping
Radiator fan shroud: $ 100 item number NWT-09 plus shipping
16″ Spal HP pull fan $ 150 item number NWT-010 plus shipping
Single fan wiring harness with 3/8″ temp sender, temp sensor adatpor ( choice of 185, 195, or 200 degree) $75 item number NWT-011 plus shipping
Billet Radiator 16lb cap $25 item number NWT-012 plus shipping
Full frame 14×20 A/C condenser $220 item number NWT-013 plus shipping
External Automatic transmission cooler 12″ $73 item number NWT-014 plus shipping
External Automatic transmission cooler 20″ $105 item number NWT-015 plus shipping
We offer a complete piggyback wiring harness for those looking to install the 1UZ engine into there rig. We offer OBD1, OBD2, and VVT options. These are custom built to your year of rig and the year of engine. Contact is needed to gather all the information we need to make this wiring harness for your rig. This will make the nightmare of wiring your rig and make it feel like a walk in the park. Our wiring harness are designed, and made right here in the USA. These harness’s are mostly plug and play with Toyota connectors. There are only a few spliced connections that will need to be completed during installation. Please contact for details or questions.
When ordering here is what we will need from you!
From Donor Vehicle:
- VIN, only if 100% certain of engine origin, OR-
- Toyota ECU and engine harness part numbers (8966x-xxxxx & 82121-xxxxx)
- Model Year
- 4WD or 2WD
- Manual or Automatic Transmission
From Your Vehicle:
- Year Model
- Original Engine
- Manual or Automatic Transmission (originally)
- Indicate specific transmission to be used in conversion
- 4WD or 2WD
- If using 3.0L version of Auto Transmission, indicate transfer case to be used
- Suspension type (original or modified)
- For 89-95 Truck, 90-95 4Runner, Indicate if ADD (Auto-Hub) system is in use
For some applications we will need core connectors from you. If your vehicle is an ’85-’90, we need two connectors. These are on the 22RE or 3VZ-E ENGINE harness, behind/near the ECU connectors. They are the 2 connectors that join the engine harness to the body/dash harness. Cut them from the ENGINE harness w/ 1-3″ of wire lead. Note, we will fill w/ new wire terminals. We will send a label for a small flat rate box through USPS.
Wiring harness: Starting at $775 item number NWT-016 plus shipping.
Cross Member/ Belly Skid Plate
Transmission cross member and skid plate. Our motor mounts do require either a modification of the transmission cross member as the tranny is located approximately 1″ back from its stock location or you can use the factory transmission isolator and a new cross member that accepts the factory isolator. No modification or fuss! Our cross members and skid plates are designed, machined, and made right here in the USA. This is the transmission cross member you will want when using our motor mounts! This cross member is lifted 1″ over a stock Toyota cross member and includes a belly skid plate. Slight skid modification is necessary on IFS rigs that retain the front sway bar.
Cross members: $419 item number NWT-017 plus shipping.
Most headers or exhaust manifolds offered for a 1UZ/2UZ need to be cut up and re-welded to try and fit the in the mini Toyota engine bay, they foul out on the frame. If your looking for a 1UZ/2UZ specific block hugger style exhaust header we have you covered. We have a header that will fit into the tight Toyota engine bay specifically with our motor mounts. These headers are engine specific, they fit without modification to the headers themselves, but these are a very tight fit. Patience is required for installation. These will fit IFS rigs, but they really shine of rigs that have a SAS done. Here are some spec’s below. Some rigs with large ribbed steering intermediate shaft may interfere slightly with headers. We recommend that a straight shaft rod replace the ribbed rod. For this we offer a weld in place 3/4 smooth coupler that welds onto the rag joint end and the upper rod end. To connect the two our kit includes two 3/4″ smooth bore to 36 spline coupler and a 36 spline 12″ shaft.
These are not CARB approved! Off Road Use Only! If you want to run EGR then a bung connector will need to be made in your exhaust where it connects to the cone. Any exhaust shop can weld in this simple bung.
Toyota Lexus 1UZ-FE/ 2UZ-FE V8 4-1 Block Huggers. These are a beef 1/2″ flange at the head, ceramic coated piece of awesomeness!!! We use factory Toyota style connecter gaskets so spare’s are easy to source should ever need to remove the exhaust from your rig.
1UZ/2UZ Block Hugger Headers $749 NWT-018 plus shipping
Steering shaft upgrade NWT-019 $109 plus shipping
Crossover Pipe Kit
For those who are wanting to install our headers we now offer a weld together cross over pipe kit. This kit features 2.25″ mandrel bent aluminized steel tubing. Our kit comes with all the necessary bends to get the headers to merge together in a 2.25″ input to 3″ outlet merge collector. Our kit has flared ends so the whole system slips together prior to welding. With this kit and our headers you will get a custom cross over pipe for a fraction of the cost an exhaust shop would charge. This kit will place the cross over under the transmission and dump out on the driver side of the vehicle. When combined with our belly skid plate the cross over will be fully protected while off road!
This kit does require the final installer to grind and weld to get the cross over complete and functional.
Cross Over Pipe Kit NWT-037 $259 plus shipping
Braided Stainless fuel line. After you have put your engine in your Toyota you will find that the fuel inlet line is down on the passenger side frame rail. The fuel inlet on the 1UZ is on the driver side of the engine. We have designed a hose that will thread into the stock Toyota fuel line and also thread into the stock fuel inlet on the 1UZ side. In some instance’s Toyota used a union down on the passenger side frame rail. You will need to make sure you have a male side 14M nut on the fuel line. This fuel line will work for those who have inline filters such as the V6 model Toyota. If your rig was originally a 4cyl truck then you will need the line that has a built in Fuel Lab 10 micron rebuildable filter.
Note: The original hard line on the 3VZ vehicles varies between Male, Female and Male w/ a F-F union. You will need to check and see what fitting your original hard line has in place. If you have a F end or M end w/ a Union from the factory, then the standard hose will
work. If you have a Male end only, you will also need a F-F union.
1UZ to 3VZ standard high pressure hose that fits to factory 1uz fuel hose found on engine NWT-021 $81 plus shipping
1UZ to 3VZ standard high pressure hose that fits fuel rail to frame rail. This is a complete hose eliminating 1uz inlet hose. NWT-021A $99 plus shipping
1UZ to 22RE or 3VZ high pressure fuel line with rebuildable high pressure fuel filter $249 item number NWT-022 plus shipping.
F-F Union fitting to connect fuel line. NWT-022A $12.99 plus shipping
For those looking for a clean looking intake system we recommend that an air box from a 1992 thru 1994 SC400 be used. This air box is small enough to fit the engine bay and make your install look factory. Once the air box is installed you will need a pipe to connect the AFM to the throttle body. For that we have a custom fit silicone elbow. This elbow is made of the highest silicone available and comes with stainless steel band clamps These aren’t your auto parts store clamps that swell and pinch the hose. Our clamps supply full clamping pressure around the whole hose, so no air leaks unfiltered into your engine. This elbow is contoured to slide onto the AFM with ease and then provide a nice snug fit onto the throttle body. Best of all it looks great!!!! The SC box requires slight modification with trimming before it will fit correctly.
Silicone air intake boot. NWT-023 $54.95 plus shipping
Blue, Black available and currently in stock
EGR exhaust block off plates. If you want to delete the crack prone EGR pipe to test EGR function, then these are for you. The EGR pipe connects from the back of the 1uz head to the exhaust manifold and these plates block off both of those ports. These plates are for testing purposes or off road use only! They are in raw steel
NWT-024 $20 plus shipping
All parts are custom made to order so shipping times can be a little lengthy. During high order volumes shipping can take up to several weeks depending on the size of your order and the parts ordered. We will work as fast as we can to get you the items you ordered.
Shipping will be calculated once a shipping location has been given. Orders can be made via email or phone call. Please visit our contacts page for contact information.
Please read our warranties/conditions page prior to purchase. You are the builder and end user of your vehicle and any product you buy. We are not liable for any and all issues, problems, or liabilities associated with there use. If you don’t agree with the warranties and conditions please don’t buy our products.
Team North West Toy’s, llc thanks you for your business!