{"product_id":"arcuri-supape-alpha-k20-k24-skunk2-311-05-1380","title":"Skunk2 Alpha Valve Springs for Honda K20, K24, F20C and F22C Engines","description":"\u003cdiv class=\"mts-description-container\"\u003e\n\u003cp\u003eSkunk2 Alpha valve springs keep the valves under control on Honda K20, K24, F20C and F22C engines, with no valve float above 10,000 rpm.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSkunk2 Racing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e311-05-1380\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003edual springs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeat pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e267 N (60 lbf) at 40.64 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOpen pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e979 N (220 lbf) at 27.94 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoil bind\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhich cars it fits\u003c\/h3\u003e\n\u003cul class=\"mts-notes-list\"\u003e\n\u003cli\u003eHonda K20, K24, F20C and F22C engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat to check\u003c\/h3\u003e\n\u003cul class=\"mts-notes-list\"\u003e\n\u003cli\u003eDual springs wound from Japanese chrome-silicon wire: the inner and outer springs are mated with a slight interference fit and have different frequencies, so they do not resonate together.\u003c\/li\u003e\n\u003cli\u003eOn single-spring K-series heads and on F20C \/ F22C engines they fit only with the Skunk2 312-05-0010 spring bases.\u003c\/li\u003e\n\u003cli\u003eOn 2004 and newer engines, Skunk2 titanium retainers need pre-2004 keepers (no laser-etched marks on the top edge): the angle differs, and the wrong combination can damage the engine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Skunk2 Racing","offers":[{"title":"Default Title","offer_id":54985038922066,"sku":"311-05-1380","price":1734.0,"currency_code":"RON","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1044\/6857\/8642\/files\/311-05-1380-1.jpg?v=1791412596","url":"https:\/\/letsrace.ro\/en\/products\/alpha-valve-springs-k20-k24-skunk2-311-05-1380","provider":"Let's Race | Echipamente Motorsport, Trackday si Karting","version":"1.0","type":"link"}