{"product_id":"12-point-head-stud-nuts-arp-2034202","title":"12-Point Head Stud Nuts ARP 2034202","description":"\u003cp\u003eBuilt for the Toyota Cressida, obtaining the optimum cylinder head-to-block sealing is especially critical in small displacement engines employing high compression pistons or power adders like turbochargers, nitrous oxide, and superchargers.\u003c\/p\u003e\u003cp\u003eARP head studs are popular among leading Sport Compact\/Import racers because ARP uses a premium grade 8740 alloy rated far superior to 'aircraft' quality.\u003c\/p\u003e\u003cp\u003eEach stud is precisely heat-treated to 200,000 psi, and following heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible.\u003c\/p\u003e\u003cp\u003eThis procedure involves about ten very slight cuts and results in an exceptionally straight part.\u003c\/p\u003e\u003cp\u003eLesser 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.\u003c\/p\u003e\u003cp\u003eBecause ARP studs are manufactured to such exacting tolerances, gaskets and cylinder heads literally glide into position and are perfectly aligned, something that won't happen with inferior quality head studs.\u003c\/p\u003e\u003cp\u003eARP 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.\u003c\/p\u003e\u003cp\u003eARP also offers specially undercut studs for several engines.\u003c\/p\u003e\u003cp\u003eThis procedure, done only to the shorter studs, more equalizes the 'stretch' of both studs, which makes for a more consistent clamping force that compensates for head gasket compression when the head is installed.\u003c\/p\u003e\u003cp\u003eThis helps prevent blown head gaskets and assures optimum sealing.\u003c\/p\u003e","brand":"ARP Inc.","offers":[{"title":"Default Title","offer_id":51709149380890,"sku":"ARP203-4202","price":172.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/8942\/8506\/files\/81sHYt2Pj_L.jpg?v=1771335713","url":"https:\/\/trybeepbeep.com\/products\/12-point-head-stud-nuts-arp-2034202","provider":"TryBeepbeep","version":"1.0","type":"link"}