{"product_id":"rpm-series-dual-valve-springs-1-274-od","title":"RPM Series Dual Valve Springs, 1.274\" OD","description":"The PAC Racing Springs PAC-1238X RPM 1200 Series Racing Dual Valve Springs are engineered for demanding, high-performance engine builds. As part of the RPM Series, these dual valve springs are specifically optimized for aggressive valvetrains and are built to withstand high-lift, abusive applications. They are designed to work with most aftermarket cylinder heads requiring 1.274″ diameter dual springs and camshafts with lifts up to .750″.\n\nConstructed with a 1.274″ outside diameter, these springs offer a 600 lbs.\/in. spring rate and a coil bind height of .985″. The inner spring features a .630″ ID, while the outer spring has a .900″ ID. The product is described as a RACE ONLY Spring, indicating its intended use in competition or extreme performance scenarios. The set includes 16 springs.\n\nKey specifications include an installed height of 1.800″ with a load of 250 lbs, a spring open height of 1.050″, and a spring open load of 700 lbs. The recommended maximum valve lift is .750″.","brand":"PAC Racing Springs","offers":[{"title":"Default Title","offer_id":52663222599992,"sku":"PACPAC-1238X","price":33.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687522464.jpg?v=1784325056","url":"https:\/\/store.motormia.co\/products\/rpm-series-dual-valve-springs-1-274-od","provider":"MOTORMIA","version":"1.0","type":"link"}