1JZ/2JZ ACL RACE Bearing Kit 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.
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.
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
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.
Factory original Toyota bearing for your big block V8! As of the making of this listing, ACL bearings are some of the most popular options out there, and our preferred bearing to use. Unfortunately they do not make a thrust washer, so we source OEM Toyota bearings when we rebuild these
To form the ultimate Stroker Kit use with BC Crankshafts with the corresponding connecting rod and piston combination. The Brian Crower stroker kit delivers a system matched setup that installs correctly the first time.
Although specific differ from kit to kit, you can be sure each Brian Crower Stroker Kit incorporates a larger stroke, steel billet crankshaft - not a reworked OEM crank, custom forged aluminum pistons, premium alloy wrist pins, full ring pack, 4340 steel billet connecting rods w/ARP fasteners, and ACL Bearings. All this equals a fully balanced system, ready to install, for some big time power and torque gains.
Our "standard" UR Toyota V8 build has no problem holding 800 HP, but we also have options to do well over 1000+ HP!!
We also know the importance of being able to customize your build and have the flexibility to run exactly what your budget allows.
Please note this does not include the core charge. We can easily and quickly source an engine for you, or you can send yours to us for building. We've built countless engines over the years, including multiple builds making more than 1000 horsepower.
Contact us with your address for a shipping quote! Listing does not include shipping price to or from us
Standard build and assembly includes:
Forged aftermarket pistons (Manley, CP, JE), 10.0:1 compression, rings gapped to your HP goals
Forged aftermarket connecting rods (BC, Manley)
ACL rod, main bearings; OEM thrust washer
New OEM oil pump (XAT upgrade optional)
Block honing with torque plate
Hot tank/vapor blast block
Ask us about additional "white glove" service options to really make your built engine stand out!
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!
Fully assembled, fully machined, and fully balanced!
We also offer upgrades over the above parts!
We've been doing UZs for well over a decade, so we know these engines inside and out. We also know the importance of being able to customize your build and have the flexibility to run exactly what your budget allows.
Before pistons are ordered, we inspect the block's condition and advise what sized pistons will be needed. This does not change the price, however you ideally will want as much cylinder wall thickness as possible, as that will hold power better, and it will give you room in the future to rebuild again if need be.
We also always use our in house torque plate to properly stress the block as with a head installed
Unlike other builders that order the pistons and drop them in, we make sure each bore correctly matches up with each specific piston! This is done to maximize fitment and sealing, which leads to more power and less blow-by.
Please note this does not include the core charge. We can easily source an engine for you, or you can send yours to us for building. We've built countless engines over the years and shipped them worldwide, including multiple builds making more than 1000 horsepower.
This listing is for a build short block, which does not include, long block assembly, setting the cam timing, installing the heads, setting the valve lash, head studs, valvetrain, etc. We can do a full build including those things as well, just let us know what your goals are and budget is!
Contact us with your address for a shipping quote! Listing does not include shipping price to or from us. We can assist with the logistics and having that taken care of.
Ask us about additional "white glove" service options to really make your built engine stand out!
Fully assembled, fully machined, and fully balanced!
Hot tank/vapor blasted block
Brand new OEM or UPGRADED OEM oil pump
We've been doing UZs for well over a decade, so we know these engines inside and out. We also know the importance of being able to customize your build and have the flexibility to run exactly what your budget allows.
Before pistons are ordered, we inspect the block's condition and advise what sized pistons will be needed. This does not change the price, however you ideally will want as much cylinder wall thickness as possible, as that will hold power better, and it will give you room in the future to rebuild again if need be.
We also always use our in house torque plate to properly stress the block as with a head installed
Unlike other builders that order the pistons and drop them in, we make sure each bore correctly matches up with each specific piston! This is done to maximize fitment and sealing, which leads to more power and less blow-by.
Please note this does not include the core charge. We can easily source an engine for you, or you can send yours to us for building. We've built countless engines over the years and shipped them worldwide, including multiple builds making more than 1000 horsepower.
This listing is for a built short block, which does not include long block assembly, setting the cam timing, installing the heads, setting the valve lash, head studs, valvetrain, etc. We can do a full build including those things as well, just let us know what your goals are and budget is!
Contact us with your address for a shipping quote! Listing does not include shipping price to or from us. We can assist with the logistics and having that taken care of.
Ask us about additional "white glove" service options to really make your built engine stand out!
Why isn't everyone running a 3UR?! After tearing one down and analyzing the engine top to bottom, we've really come to appreciate the level of engineering that has gone into these engines. It's no wonder they were made for over 15 years! We feel they're extremely underrated, and they also respond especially well to supercharging.
XAT has been building 3URs and developing new parts for years 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 our daily driven Whipple supercharged Tundra has become an entirely different beast with forced induction.
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, including an all out 6.8 liter bored and stroked version!
You will need to send us your engine, or you can use one of our supplied cores. We have a few in stock!
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:
BC ARP2000 rods
Manley pistons, 10.0:1 compression ratio
Full OEM new engine gasket kit
All new timing parts (chain, guides, tensioners, etc.)
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
New valve stem seals
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!
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.
Please note this is not always in stock so there may be about 1 week wait time
For those who just need a simple rebuild and not fancy ACL race bearings, we can supply these OEM quality bearings. Clevite is an American brand with one of the oldest pedigrees and supplies pistons, assemblies, cylinder liners, bearings and valves for American commercial vehicles as well as construction and agricultural equipment applications.
Various forms of main bearing grooving have been used over the years. We are frequently asked what difference grooving makes.
First, it’s essential to understand that bearings depend on a film of oil to keep them separated from the shaft surface. This oil film is developed by shaft rotation. as the shaft rotates it pulls oil into the loaded area of the bearing and rides up on this film much like a tire hydroplaning on wet pavement. Grooving in a bearing acts like tread in a tire to break up the oil film. While you want your tires to grip the road, you don’t want your bearings to grip the shaft.
The primary reason for having any grooving in a main bearing is to provide oil to the connecting rods. Without rod bearings to feed, a simple oil hole would be sufficient to lubricate a main bearing. Many early engines used full grooved bearings and some even used multiple grooves. As engine and bearing technology developed, bearing grooving was removed from modern lower main bearings. The result is in a thicker film of oil for the shaft to ride on. This provides a greater safety margin and improved bearing life. Upper main shells, which see lower loads than the lowers, have retained a groove to supply the connecting rods with oil.
In an effort to develop the best possible main bearing designs for performance engines, we’ve investigated the effects of main bearing grooving on bearing performance. The graphs on the next page illustrate that a simple 180° groove in the upper main shell is still the best overall design.
While a slightly shorter groove of 140° provides a marginal gain, most of the benefit is to the upper shell, which doesn’t need improvement. On the other hand, extending the groove into the lower half, even as little as 20° at each parting line (220° in total), takes away from upper bearing performance without providing any benefit to the lower half. It’s also interesting to note that as groove length increases so do horsepower loss and Peak Oil Film Pressure which is transmitted directly to the bearing.
*P-Series Bearings* These are not to be confused with the standard passenger car and light truck parts for the same retention applications which also have a “P” suffix letter. These high performance parts have unique core part numbers different from the standard parts for the same application. P-Series parts are the oldest series of Clevite high performance bearings. The rod bearings in this series typically have the greatest amount of eccentricity. Most rod bearings are available either with or without dowel holes for use in aluminum rods. Most P-Series main sets are full grooved to maximize oil flow to the rod bearings. Both rods and mains have high crush for maximum retention, and a reduced overlay thickness to prevent overlay fatigue, sometimes referred to as hen tracking.
