{"product_id":"valve-spring-and-retainer-kit-for-nissan-rb25det-nvcs","title":"Valve Spring and Retainer Kit for Nissan RB25DET NVCS","description":"The Kelford Cams KVS25R-T is a premium valve spring and titanium retainer kit engineered specifically for the Nissan RB25DET engine equipped with NVCS (Nissan Variable Cam System).\n\nThis comprehensive kit includes 24 high-performance valve springs, 24 lightweight titanium retainers, and 12 precision-machined spring bases for the exhaust side. The inclusion of spring bases helps to equalize installation heights across all valves, ensuring consistent performance and valve control.\n\nThe intake springs are rated at 83lb seat pressure when installed at a height of 30.40mm. The exhaust springs offer a slightly different rating of 80lb seat pressure at a 30.65mm installed height. Both sets are designed to handle a maximum lift of 10.50mm, making them suitable for demanding engine builds.\n\nIt is crucial to note that this KVS25R-T kit is not suitable for engines with non-VCT (Variable Valve Timing Control) or Neo heads; those applications require the KVS20 kit. For optimal performance and reliability, installation by a qualified mechanic at a licensed workshop is strongly recommended, and these parts are intended for track use only.","brand":"Kelford Cams","offers":[{"title":"Default Title","offer_id":52664226480440,"sku":"KVS25R-T","price":882.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687547815.jpg?v=1784335504","url":"https:\/\/store.motormia.co\/products\/valve-spring-and-retainer-kit-for-nissan-rb25det-nvcs","provider":"MOTORMIA","version":"1.0","type":"link"}