ARP Nissan and Datsun Head Studs Kits, It is for good reason that virtually every top professional engine builder relies on ARP head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on the market today.
For openers, ARP Nissan and Datsun Head Studs Kits 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 200,000 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 ARP Head Stud are 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 Nissan and Datsun Head Studs Kits 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 Head Stud Kits 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 applications. 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 Nissan and Datsun Head Studs 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.
Head Bolt and Stud Tech Tips
HEAD STUDS vs. BOLTS
This product is in the following categories:
Bolt Kits, Studs, Fasteners
Head Bolts and Head Studs
Part #: 102-4701
Nissan/Datsun 2.0L (SR20DE) Double Overhead Cam (1991-2001) M11, 12-point nuts and under cut studs, ARP Head Studs 102-4701
Part #: 202-4201
Nissan/Datsun L20 series, 4-cylinder, 12-point nuts, ARP Head Studs 202-4201
Part #: 202-4202
Nissan/Datsun A-12 engines, 12-point nuts, ARP Head Studs 202-4202
Part #: 202-4203
Nissan/Datsun A-14 engines, 12-point nuts, ARP Head Studs 202-4203
Part #: 202-4206
Nissan/Datsun L24, L26, L28, 6-cylinder, 12-point nuts, ARP Head Studs 202-4206
Part #: 202-4207
Nissan/Datsun RB26DETT, GTR ARP2000, 12-point nuts, ARP Head Studs 202-4207
Part #: 202-4301
Nissan/Datsun RB20, RB20DET, RB25, RB25DET, 12-point nuts, ARP Head Studs 202-4301
Part #: 202-4303
Nissan/Datsun 2.0L (SR20DET/RN14) Double Overhead Cam Turbo (1991-1994) M12, 12-point nuts, ARP Head Studs 202-4303
Part #: 202-4701
Nissan/Datsun VQ30, VQ35, 12-point nuts and under cut studs, ARP Head Studs 202-4701
Part #: 202-4702
Nissan/Datsun 1.6L (CA16DE/DET) & 1.8L (CA18DE/DET), 12-point nuts and under cut studs, ARP Head Studs 202-4702