{"product_id":"arp-head-studs-part-no-209-4701","title":"ARP cylinder head studs for Opel 2.0L 16V (lightweight studs) - 209-4701","description":"\u003cp\u003eThis ARP 209-4701 kit replaces the cylinder head bolts of the Opel 2.0L 16V (lightweight studs) with studs. It is one of the first upgrades performed on an engine that is going to have its power increased, because the head gasket is one of the first points to fail.\u003c\/p\u003e\u003cp\u003eARP grinds each stud after heat treatment to ensure it is straight and concentric, and rolls the threads at the end of the process; this achieves a fatigue resistance approximately twenty times greater than that of threads made before heat treatment.\u003c\/p\u003e\u003cp\u003eFollow the torque and tightening sequence in the ARP instructions, which are calculated for their assembly lubricant; using motor oil changes the actual torque. If you have any questions about whether this is the correct part number for your engine, please write to us with your engine code and year.\u003c\/p\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":53893644452174,"sku":"ARP-209-4701","price":236.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0816\/7329\/0062\/files\/209-4701.jpg?v=1790662686","url":"https:\/\/driftandgrip.com\/en\/products\/arp-head-studs-part-no-209-4701","provider":"Drift \u0026 Grip","version":"1.0","type":"link"}