ARP 165-5401 Head Stud Kit fits Nissan 240SX 1991-98 KA24DE

Description

ARP 165-5401 Head Stud Kit fits Nissan 240SX 1991-98 KA24DE
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You are bidding on a brand NEW ARP 165-5401 Head Stud Kit
Fits 1991-98 Nissan 240SX and 1993-01 Altima with the engine code KA24DE
ONLY.
Kit comes with all (10) 10mm head studs, (10) washers, and (10) nuts needed for a direct bolt on, as well as the ARP moly-lube and instruction sheet. This kit uses the
8740 Chromoly material.
This kit is recommended for engines up to 400HP, for engines that will see more than that, we recommend using our other KA kit with the ARP2000 Material  p/n 202-4304.
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ARP® uses a premium grade Chromoly 8740 material that is rated far superior to to "aircraft quality". Then, each stud is placed vertically in special racks and precisely heat-treated. 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% (thats 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.