{"product_id":"fmbp-466154-engine-valve-spring-outer","title":"FMBP 466154 Engine Valve Spring - Outer","description":"\u003ch2\u003ePerformance valve spring for street and race use\u003c\/h2\u003e\u003cp\u003eMelling 466154 is a performance engine valve spring built for a wide range of street, strip, and circle track applications. It uses chrome silicon construction and a single-spring design with hydraulic flat tappet camshaft compatibility.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChrome silicon material for consistent spring performance\u003c\/li\u003e\n\u003cli\u003eSingle spring design for performance valvetrain setups\u003c\/li\u003e\n\u003cli\u003eHydraulic flat tappet camshaft type\u003c\/li\u003e\n\u003cli\u003eInstalled height: 1.750 in. \/ 44.00 mm\u003c\/li\u003e\n\u003cli\u003eInstalled pressure: 131.5\u003c\/li\u003e\n\u003cli\u003eOpen pressure: 240.0\u003c\/li\u003e\n\u003cli\u003eCoil bind height: 1.220 in. \/ 31.00 mm\u003c\/li\u003e\n\u003cli\u003eSpring open height: 1.250 in. \/ 32.00 mm\u003c\/li\u003e\n\u003cli\u003eInside diameter: 1.141 in. \/ 29.00 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.535 in. \/ 39.00 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed description\u003c\/h2\u003e\u003cp\u003eThis Melling Performance valve spring, part number 466154, is engineered for applications that need controlled valve motion and stable pressure under load. The chrome silicon construction and performance grade make it a fit for builders working on classic Chevrolet, GMC, Ford, Dodge, Chrysler, Plymouth, Lincoln, and Mercury engines across a broad range of years. This part cross-references Monroe Shocks \u0026amp; Struts (e.g., 172286, 182286) for the same application.\u003c\/p\u003e\u003cp\u003eCompatible With Chevrolet C10, C20, Camaro, Corvette, and similar performance and heavy-duty engine builds, this spring is also listed for Ford F-150, Bronco, and Mustang applications, along with many classic Mopar and GMC platforms. Part number 466154 appears throughout the fitment data for outer valve spring applications where machining may be required.\u003c\/p\u003e\u003ch2\u003eCommon issues this part addresses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWeak or inconsistent valve spring pressure\u003c\/li\u003e\n\u003cli\u003eValve float at higher engine speeds\u003c\/li\u003e\n\u003cli\u003eLoss of valvetrain control in performance use\u003c\/li\u003e\n\u003cli\u003eSpring fatigue from extended service life\u003c\/li\u003e\n\u003cli\u003eNeed for a performance-grade replacement spring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation notes and tips\u003c\/h2\u003e\u003cp\u003eCompatible With the listed outer applications only. Fitment notes indicate machining may be required, so verify installed height, coil bind clearance, and spring pressure before assembly. Confirm camshaft type and valvetrain geometry during engine build, especially when using the 466154 spring in performance or rebuilt engines.\u003c\/p\u003e\u003ch2\u003eQuality assurance\u003c\/h2\u003e\u003cp\u003eMelling offers a broad valve spring lineup spanning standard, heavy-duty, and race-ready applications. Part number 466154 is part of the Performance line and is built to meet the demands of street and competition engine use.\u003c\/p\u003e","brand":"FMBP","offers":[{"title":"Default Title","offer_id":53721565659317,"sku":"FMBP-466154","price":14.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ML_466154_Fro.jpg?v=1794122126","url":"https:\/\/www.partcatalog.com\/products\/fmbp-466154-engine-valve-spring-outer","provider":"PartCatalog","version":"1.0","type":"link"}