1UZFE Head Studs
These head studs are custom order from Automotive Racing Products (ARP) specifically for ALL Lexus-Toyota V8 Engines. ARP head studs are the best in the racing world. If you are boosting your 1UZFE engine. These studs will fit ALL Lexus V8 and Toyota V8 engines. These studs are highly recommended. These studs are a must if you plan to install after market head gaskets. ARP Head Studs are available now. More information on head studs write up. 2007 Tundra (3UR-FE) Head Studs available now!
Below was copied from ARP:
It
is for good reason that virtually every top professional engine builder relies
on ARP® Pro Series head studs for their all-out competition powerplants. Simply
stated, there’s not a better stud setup on the market today.
For openers, ARP® uses a premium grade 8740 alloy that is rated far superior to
“aircraft” quality. Then, each stud is placed vertically in special racks and
precisely heat-treated to 190,000 psi. This procedure ensures complete heat
penetration and the results are far superior to those lesser quality studs from
other manufacturers who just dump pieces in a basket and hope for the best.
Following heat-treat, each stud is centerless ground to make it as close to
perfectly concentric as possible. This procedure involves about ten very slight
cuts and results in an exceptionally straight part. It’s important to note that
lesser quality studs are not even centerless ground—the material is thread
rolled in bar stock form (mostly before heat-treat, when the material is easier
to machine). Because ARP® studs are manufactured to such exacting tolerances,
you will note that gaskets and cylinder heads literally glide into position and
are perfectly aligned—something that won’t happen with inferior quality head
studs.
ARP® studs are thread rolled after heat-treat, which gives them about 1000%
(that’s ten times) better fatigue strength than those studs that are threaded
prior to heat-treat (a very common industry practice). It costs a lot more to do
it this way, because it’s tough on tooling, but the results are well worth the
extra effort.
You will also note that ARP® offers specially undercut studs for several
engines. This procedure (done only to the shorter studs) more equalizes the
“stretch” of both studs, which makes for a more consistent clamping force—and
one that compensates for head gasket compression when the cylinder heads are
installed. This helps prevent blown head gaskets, and assures optimum engine
sealing!
Premium quality heat-treated 8740 chrome moly steel head stud kits are available
for most every domestic and import application. You won’t find a better quality
stud on the market from any other source. Look for ARP® stamped on each stud as
your assurance of quality.
ARP® head stud kits are available with your choice of conventional hex nuts or
compact 12-point nuts. Premium quality parallel ground washers are also included
with each kit. Clearly, they are the best on the market today, and the favorite
of leading professional engine builders in all forms of racing. The whole
ARP kit for $359
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