{"product_id":"fmbp-466744-engine-valve-spring","title":"FMBP 466744 Engine Valve Spring","description":"\u003ch2\u003ePerformance Valve Spring for Ford and Mercury Applications\u003c\/h2\u003e\u003cp\u003eMelling 466744 is a performance engine valve spring built for street, circle track, drag race, and other demanding valvetrain setups. It uses chrome silicon construction and a dual spring design to deliver controlled seat and open pressures for compatible Ford, Mercury, Lincoln, and Oldsmobile applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChrome silicon material for performance valvetrain use\u003c\/li\u003e\n\u003cli\u003eDual spring design for added control at higher engine speeds\u003c\/li\u003e\n\u003cli\u003eInstalled height: 1.625 in. \/ 41.20 mm\u003c\/li\u003e\n\u003cli\u003eInstalled pressure: 105.0 lb\u003c\/li\u003e\n\u003cli\u003eOpen pressure: 230.0 lb at 1.150 in. \/ 29.20 mm\u003c\/li\u003e\n\u003cli\u003eInside diameter: 0.804 in. \/ 20.40 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.384 in. \/ 35.20 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Melling valve spring is part number 466744 and is engineered for performance engine builds that need stable valve control across a wide operating range. The spring’s chrome silicon construction, dual spring layout, and specified coil bind height of 0.826 in. \/ 21.00 mm make it a fitment-focused choice for compatible Ford Mustang, Ford F-150, and Mercury Cougar applications listed below. Melling’s Performance line covers standard through race-ready valvetrain needs, and this spring follows that approach with defined pressure and dimensional specs for accurate selection.\u003c\/p\u003e\u003cp\u003eCompatible With 1962-2001 Ford, Mercury, Lincoln, and Oldsmobile applications listed in the fitment table, including Ford Explorer, Ford Bronco, Ford F-350, Ford Mustang, Mercury Grand Marquis, and Oldsmobile Cutlass Supreme. Part number 466744 is also referenced for the same application in related catalog listings.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing worn or weak valve springs in performance engines\u003c\/li\u003e\n\u003cli\u003eSupporting valvetrain control in street and competition use\u003c\/li\u003e\n\u003cli\u003eAddressing valve float caused by insufficient spring pressure\u003c\/li\u003e\n\u003cli\u003eRestoring proper seat and open pressure in compatible builds\u003c\/li\u003e\n\u003cli\u003eMatching a dual spring setup for performance camshaft applications\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 compatibility with the cylinder head, retainer, and valvetrain geometry for the specific application. This part is listed for inner and outer spring assembly use in the fitment data, so compare the engine’s existing spring arrangement and specifications before ordering.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eMelling’s Performance line is positioned for applications ranging from street use to race-oriented builds, with multiple spring designs and pressure ranges available across the catalog. Part number 466744 is built to published dimensional and pressure specifications for consistent selection in compatible engines.\u003c\/p\u003e","brand":"FMBP","offers":[{"title":"Default Title","offer_id":53721566085301,"sku":"FMBP-466744","price":16.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ML_466744_Fro.jpg?v=1794122202","url":"https:\/\/www.partcatalog.com\/products\/fmbp-466744-engine-valve-spring","provider":"PartCatalog","version":"1.0","type":"link"}