{"product_id":"dual-valve-spring-set","title":"Dual Valve Spring Set","description":"The Supertech Performance SPRK-H1002D\/1FZ is a dual valve spring set engineered for demanding, high-RPM engine applications. Constructed from premium Super Clean Chrome silicon Vanadium Steel alloy, these springs are built to deliver exceptional performance and durability, even under extreme operating conditions.\n\nSupertech utilizes computer-aided design to meticulously engineer these valve springs. This design process ensures that wire stress levels are kept well within defined fatigue limits, promoting long-term reliability. Furthermore, the software is used to ensure that harmonics are effectively managed, contributing to smoother engine operation at high speeds.\n\nThese retainers are CNC machined to achieve a precise fit, which is crucial for ensuring consistent valve operation and long-term durability within the valvetrain. The specified seat pressure is 70 lbs at 36.20mm, with an open pressure of 170 lbs at 14mm max lift.\n\nThis specific part number, ST-SPRK-H1002D-1FZ, is listed as compatible with Toyota Landcruiser models equipped with the 1FZFE engine. Other listings indicate compatibility with Honda\/Acura B-series engines, including B16, B18C1, B18C5, and B18A1 engines.","brand":"Supertech","offers":[{"title":"Default Title","offer_id":52663924982072,"sku":"ST-SPRK-H1002D","price":765.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687720620.jpg?v=1784330894","url":"https:\/\/store.motormia.co\/products\/dual-valve-spring-set","provider":"MOTORMIA","version":"1.0","type":"link"}