{"product_id":"fmbp-466564-engine-valve-spring","title":"FMBP 466564 Engine Valve Spring","description":"\u003ch2\u003ePerformance Valve Spring Overview\u003c\/h2\u003e\u003cp\u003eThe Melling 466564 engine valve spring is a performance-grade dual spring built with chrome silicon material and specified spring pressures for demanding valvetrain setups. It is listed for a wide range of Chevrolet, GMC, Cadillac, Pontiac, Buick, Saab, Hummer, Isuzu, and Avanti applications that use dual springs.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDual spring design for performance valvetrain use\u003c\/li\u003e\n\u003cli\u003eChrome silicon construction for strength and heat resistance\u003c\/li\u003e\n\u003cli\u003eInstalled pressure: 147.0\u003c\/li\u003e\n\u003cli\u003eOpen pressure: 406.0\u003c\/li\u003e\n\u003cli\u003eInstalled height: 1.800 in. and coil bind height: 1.102 in.\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.276 in.; inside diameter: 0.678 in.\u003c\/li\u003e\n\u003cli\u003ePerformance grade spring for street, OEM-style, and racing applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eMelling 466564 is an engine valve spring designed for performance builds that require dual-spring control and consistent pressure characteristics. The chrome silicon construction and dual spring layout support valvetrain stability across a broad range of applications, including Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Camaro platforms that call for dual springs. This part number, 466564, is used in applications spanning street-driven trucks and SUVs through higher-output performance vehicles, making it a practical choice when matching spring specifications to the engine setup.\u003c\/p\u003e\u003cp\u003eMelling’s Performance line covers standard, mid-range, heavy-duty, and race-ready spring options, with multiple wire sizes, materials, and spring pressures available. The 466564 follows that product-line approach by combining a dual spring design with defined installed and open pressure values for builders who need a specific valvetrain setup rather than a generic replacement.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing worn valve springs that no longer hold consistent pressure\u003c\/li\u003e\n\u003cli\u003eAddressing valve float in higher-rpm engine operation\u003c\/li\u003e\n\u003cli\u003eSupporting performance camshaft and valvetrain combinations\u003c\/li\u003e\n\u003cli\u003eRestoring proper spring control in dual-spring applications\u003c\/li\u003e\n\u003cli\u003eMatching a specified installed height and pressure requirement\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 build before installation. This part fits applications listed with dual springs only, so confirm the valvetrain specification for your Chevrolet Silverado 2500 HD, GMC Sierra 3500 HD, or Chevrolet Camaro application before ordering. Part number 466564 should be matched to the cylinder head and camshaft requirements for the engine.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eMelling’s Performance line is built around application-specific spring designs for street and competition use. This part cross-references Monroe Shocks \u0026amp; Struts (e.g., 172286, 182286) for the same application.\u003c\/p\u003e","brand":"FMBP","offers":[{"title":"Default Title","offer_id":53669323833525,"sku":"FMBP-466564","price":20.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ML_466564_Ang.jpg?v=1793688793","url":"https:\/\/www.partcatalog.com\/products\/fmbp-466564-engine-valve-spring","provider":"PartCatalog","version":"1.0","type":"link"}