{"product_id":"arp-head-bolt-kit-toyota-1-3l-4efe-4efte-1-5l-5efe-5efhe-4cyl-203-3801","title":"ARP Head Bolt Kit - Toyota 1.3L (4EFE, 4EFTE) \/ 1.5L (5EFE, 5EFHE) 4cyl - 203-3801","description":"\u003cp\u003eAll Pro Series bolts are cold-forged to ensure molecular integrity, heat-treated prior to thread\nrolling and machining, and meet the ARP “ZERO defect – ZERO failure” quality standard. ARP\nPro Series head bolt kits are application specific and designed to deliver superior strength\ntypically associated with competition engines. Pro Series kits are available in standard\n(8740) 190,000 psi tensile strength material and proprietary (ARP2000®) 220,000 psi tensile\nstrength material where noted. All Pro Series head bolts have a reduced wrenching hex or\n12-point head and wide area flange to permit the use of larger diameter valve springs and\neliminate the need for valve train removal during cylinder head retorquing. Hardened parallel-ground washers are included in each kit. Most applications have undercut short bolts that\ncan help eliminate head gasket failures through providing more “stretch” to compensate for\nthe additional compression of gaskets.\u003c\/p\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":44887377346840,"sku":"ARP203-3801","price":154.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0259\/7856\/8790\/products\/203-3801_b4a8e63b-a6d3-4754-aced-fb415d1ca6a0.jpg?v=1752002702","url":"https:\/\/nipponpower.com\/products\/arp-head-bolt-kit-toyota-1-3l-4efe-4efte-1-5l-5efe-5efhe-4cyl-203-3801","provider":"Nippon Power","version":"1.0","type":"link"}