{"product_id":"bcbc-vs-1688-engine-valve-spring","title":"BCBC VS-1688 Engine Valve Spring","description":"\u003ch2\u003eEngine Valve Spring Overview\u003c\/h2\u003e\u003cp\u003eThe Melling VS-1688 is a standard replacement engine valve spring built for hydraulic roller camshaft applications. It uses chrome silicon construction and a single-spring design to deliver the pressure and control needed for stock and performance-oriented valvetrain service.\u003c\/p\u003e\u003cp\u003eCompatible With Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Tahoe, and GMC Yukon applications listed below, this valve spring is part of Melling’s Stock line and is suited for a wide range of street and light-duty truck engines. The VS-1688 part number is also referenced by interchange numbers used for the same application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChrome silicon material for consistent spring performance\u003c\/li\u003e\n\u003cli\u003eSingle spring design for hydraulic roller camshaft setups\u003c\/li\u003e\n\u003cli\u003eStandard replacement grade for stock-style service\u003c\/li\u003e\n\u003cli\u003eInstalled pressure of 87.0 and open pressure of 272.0\u003c\/li\u003e\n\u003cli\u003eFits a broad range of Chevrolet and GMC truck and SUV applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Application Notes\u003c\/h2\u003e\u003cp\u003eThe VS-1688 is engineered as a direct replacement valve spring for engines that require the listed installed height, coil bind height, and open height specifications. It is used in Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Sierra 1500, and GMC Yukon applications where the valvetrain calls for a standard replacement spring with hydraulic roller compatibility. Melling VS-1688 supports stock service needs while also covering select truck and SUV applications across multiple model years.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWeak or fatigued valve spring tension\u003c\/li\u003e\n\u003cli\u003eLoss of valve control at operating speed\u003c\/li\u003e\n\u003cli\u003eIncorrect spring pressure for a hydraulic roller setup\u003c\/li\u003e\n\u003cli\u003eReplacement needs during valvetrain service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify installed height, coil bind height, spring open height, and pressure requirements before installation. Confirm cylinder head and camshaft specifications match the listed spring dimensions and hydraulic roller application. Use the vehicle fitment list to confirm the correct Chevrolet or GMC application before ordering.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eMelling offers valve springs across standard, mid-range, heavy-duty, and race-ready applications, and the VS-1688 is part of the Stock product line for standard replacement service. The part number VS-1688 is supported by multiple cross-reference numbers for the same application.\u003c\/p\u003e","brand":"BCBC","offers":[{"title":"Default Title","offer_id":53725656383669,"sku":"BCBC-VS-1688","price":16.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ML_VS1688_Ang.jpg?v=1794205982","url":"https:\/\/www.partcatalog.com\/products\/bcbc-vs-1688-engine-valve-spring","provider":"PartCatalog","version":"1.0","type":"link"}