{"product_id":"fmbp-466544-engine-valve-spring","title":"FMBP 466544 Engine Valve Spring","description":"\u003ch2\u003ePerformance valve spring for V8 applications\u003c\/h2\u003e\u003cp\u003eMelling 466544 is a performance engine valve spring built for street, circle track, OEM-style performance, and drag race use. It is a single spring design made from corrosion-resistant steel and specified with a 1.800-inch installed height, 130.0 lb installed pressure, and 348.0 lb open pressure.\u003c\/p\u003e\u003cp\u003eThis spring is sized with a 0.645-inch inside diameter, 1.019-inch outside diameter, and 1.141-inch coil bind height. The 466544 is listed for Chrysler 300, Dodge Charger, Dodge Ram 1500, and Jeep Grand Cherokee applications with 0.645 I.D. small-end performance notes, making it a fitment-based choice for Chrysler, Dodge, and Jeep performance builds.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSingle spring construction for performance valvetrain setups\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant steel material\u003c\/li\u003e\n\u003cli\u003e1.800-inch installed height and 130.0 lb installed pressure\u003c\/li\u003e\n\u003cli\u003e348.0 lb open pressure for higher-load operation\u003c\/li\u003e\n\u003cli\u003e0.645-inch inside diameter with 1.019-inch outside diameter\u003c\/li\u003e\n\u003cli\u003ePerformance grade design from the Melling Performance line\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed application information\u003c\/h2\u003e\u003cp\u003eMelling 466544 is part of the Performance line and is engineered for buyers who need a valve spring with defined pressure and dimensional targets. The spring type, material, and pressure ratings make it suitable for performance valvetrain setups where consistent spring control matters. This part number, 466544, is used across multiple Chrysler, Dodge, and Jeep applications, including Dodge Ram 2500 and Dodge Durango listings in the same performance family.\u003c\/p\u003e\u003ch2\u003eWhat this part helps address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eValve control concerns in higher-rpm performance builds\u003c\/li\u003e\n\u003cli\u003eSpring pressure requirements for modified valvetrain setups\u003c\/li\u003e\n\u003cli\u003eFitment needs for performance applications with a 0.645 I.D. small end\u003c\/li\u003e\n\u003cli\u003eReplacement of worn or fatigued engine valve springs\u003c\/li\u003e\n\u003cli\u003eApplication matching for Chrysler, Dodge, and Jeep performance engines\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 that the cylinder head and valvetrain geometry match the 1.800-inch installed height and 1.141-inch coil bind height. Review the application notes for the specific vehicle and engine combination before ordering. This part number, 466544, is listed with performance-oriented fitment notes rather than universal coverage.\u003c\/p\u003e\u003ch2\u003eQuality assurance\u003c\/h2\u003e\u003cp\u003eMelling offers a range of valve springs from standard-duty to race-ready designs, including single and dual spring configurations. The 466544 reflects that performance-focused product range and is built to meet defined spring pressure and dimensional requirements for engine valvetrain service.\u003c\/p\u003e","brand":"FMBP","offers":[{"title":"Default Title","offer_id":53669323767989,"sku":"FMBP-466544","price":18.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ML_466544_FRO.jpg?v=1793688786","url":"https:\/\/www.partcatalog.com\/products\/fmbp-466544-engine-valve-spring","provider":"PartCatalog","version":"1.0","type":"link"}