{"product_id":"bcbc-vs-350-engine-valve-spring","title":"BCBC VS-350 Engine Valve Spring","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eMelling VS-350 is a standard replacement engine valve spring built for classic Ford and Mercury applications that require the L10-to-L14 changeover. It uses corrosion-resistant steel and a single-spring design to deliver consistent valve control for street and performance use.\u003c\/p\u003e\u003cp\u003eCompatible with Ford Mustang, Ford Fairlane, Mercury Cougar, and other listed applications, this spring is suited for engines that need the specified installed height and pressure range. The VS-350 part number is also referenced as a direct replacement for several cross-listed applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCorrosion-resistant steel construction for dependable service.\u003c\/li\u003e\n\u003cli\u003eSingle-spring design for standard replacement use.\u003c\/li\u003e\n\u003cli\u003eInstalled height: 1.64 in. \/ 42.0 mm.\u003c\/li\u003e\n\u003cli\u003eInstalled pressure: 60.0 lb.\u003c\/li\u003e\n\u003cli\u003eOpen pressure: 166.0 lb. at 1.25 in. \/ 32.0 mm.\u003c\/li\u003e\n\u003cli\u003eCoil bind height: 1.105 in. \/ 28.0 mm.\u003c\/li\u003e\n\u003cli\u003eInside diameter: 0.885 in. \/ 22.0 mm.\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.225 in. \/ 31.0 mm.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe Melling VS-350 valve spring is engineered as a standard replacement option for engines that call for a single spring with the listed height and pressure specifications. Its corrosion-resistant steel construction supports consistent operation in street-driven and performance-oriented builds, while the spring dimensions help maintain proper valve control within the intended operating range. This part number, VS-350, is used across multiple Ford and Mercury applications from 1966-1968, including Mustang, Cougar, Comet, and Cyclone models with the noted L10-to-L14 changeover requirement.\u003c\/p\u003e\u003cp\u003eMelling offers a broad valve spring lineup for standard, mid-range, heavy-duty, and race-ready needs, and the VS-350 fits within that range as a standard replacement spring. This part cross-references Monroe Shocks \u0026amp; Struts (e.g., 172286, 182286) for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a worn or weakened valve spring in compatible engines.\u003c\/li\u003e\n\u003cli\u003eRestoring valve control when spring pressure has dropped.\u003c\/li\u003e\n\u003cli\u003eAddressing valve train instability caused by incorrect spring height or bind clearance.\u003c\/li\u003e\n\u003cli\u003eSupporting stock-style engine service on classic Ford and Mercury platforms.\u003c\/li\u003e\n\u003cli\u003eMatching the specified spring dimensions for rebuild or maintenance work.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify installed height, coil bind clearance, and spring pressure against the engine’s requirements before installation. Confirm the L10-to-L14 changeover note in the fitment data for the listed Ford and Mercury applications. Use the VS-350 part number and the engine’s service specifications to confirm the correct spring before assembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eMelling manufactures this spring in the USA and supplies valve springs across standard, performance, and race-oriented applications. The VS-350 is a standard replacement part built to meet the dimensional and pressure requirements listed for the application.\u003c\/p\u003e","brand":"BCBC","offers":[{"title":"Default Title","offer_id":53725647044789,"sku":"BCBC-VS-350","price":14.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ML_VS350_Ang.jpg?v=1794205618","url":"https:\/\/www.partcatalog.com\/products\/bcbc-vs-350-engine-valve-spring","provider":"PartCatalog","version":"1.0","type":"link"}