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Storefront >> Engine Internals >> Non-Supercharged 3800 Vehicles >> ARP Head Stud Kit


ARP Head Stud Kit Price: $119.99
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APPLICATIONS:
- 1997-2003 Grand Prix
- 2004-2008 Grand Prix
- 1997-2004 Regal GS
- 1998-2005 Bonneville
- 2000-2005 Monte Carlo
- 2000-2005 Impala
- 1998-2002 V6 Camaro
- 1998-2002 V6 Firebird

Factory "torque-to-yield" head bolts stretch when they get torqued down, which means they cannot be reused. ARP Head Studs eliminate the need to purchase brand new OEM head bolts each time you remove your cylinder heads. They also provide much more consistent, accurate torque readings and help align your head gaskets and cylinder heads during installation.

The ARP Head Stud Kit consists of:
  • 8 long head studs
  • 8 short head studs
  • 16 nuts
  • 16 parallel ground washers
  • Assembly Lubricant

From ARP's website:
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.




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