{"product_id":"bcbc-vs-390-engine-valve-spring","title":"BCBC VS-390 Engine Valve Spring","description":"\u003ch2\u003eEngine Valve Spring for Stock and Performance Builds\u003c\/h2\u003e\u003cp\u003eMelling VS-390 is a standard replacement engine valve spring built for a wide range of classic Chevrolet, GMC, Pontiac, Buick, Oldsmobile, and Studebaker applications. It uses corrosion-resistant steel and a single-spring design to support stock and performance valvetrain setups where the listed dimensions and pressures match the engine requirements.\u003c\/p\u003e\u003cp\u003eThis part cross-references Monroe Shocks \u0026amp; Struts (e.g., 172286, 182286) for the same application.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number VS-390 for catalog and fitment lookup\u003c\/li\u003e\n\u003cli\u003eSingle spring design with standard replacement grade\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant steel construction\u003c\/li\u003e\n\u003cli\u003eInstalled height: 1.66 in. \/ 42.0 mm\u003c\/li\u003e\n\u003cli\u003eInstalled pressure: 60.0 lb\u003c\/li\u003e\n\u003cli\u003eOpen pressure: 186.0 lb at 1.27 in. \/ 32.0 mm\u003c\/li\u003e\n\u003cli\u003eCoil bind height: 1.17 in. \/ 30.0 mm\u003c\/li\u003e\n\u003cli\u003eInside diameter: 0.872 in. \/ 22.0 mm; outside diameter: 1.226 in. \/ 31.0 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eVS-390 is part of Melling’s Stock line of valve springs, covering standard replacement needs across street, OEM-style, and higher-demand performance applications. The spring is made in the USA and is offered as a single spring design with defined installed height, pressure, and coil bind measurements for accurate valvetrain setup. Compatible With classic Chevrolet and GMC engines in stock configurations, as well as selected Pontiac, Buick, Oldsmobile, and Studebaker applications where the listed specifications apply. The VS-390 part number is useful when matching an existing spring specification or replacing a worn valve spring in a compatible engine build.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a fatigued or broken valve spring\u003c\/li\u003e\n\u003cli\u003eRestoring correct valve control in a stock valvetrain\u003c\/li\u003e\n\u003cli\u003eMatching spring pressure for a rebuild or service repair\u003c\/li\u003e\n\u003cli\u003eAddressing valve float caused by weak spring tension\u003c\/li\u003e\n\u003cli\u003eSupporting engines that need a standard replacement spring specification\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 before installation. Confirm the spring dimensions against the cylinder head and valvetrain specifications for the engine being serviced. Use the fitment list to match the correct Chevrolet, GMC, Pontiac, Buick, Oldsmobile, or Studebaker application, and compare the VS-390 part number with the removed spring when possible.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eMelling manufactures this spring in the USA and offers a broad valve spring range for standard, heavy-duty, and race-oriented applications. The VS-390 is a standard replacement part built to Melling’s published dimensional and pressure specifications.\u003c\/p\u003e","brand":"BCBC","offers":[{"title":"Default Title","offer_id":53725647077557,"sku":"BCBC-VS-390","price":15.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ML_VS390_Ang.jpg?v=1794205626","url":"https:\/\/www.partcatalog.com\/products\/bcbc-vs-390-engine-valve-spring","provider":"PartCatalog","version":"1.0","type":"link"}