{"product_id":"fmbp-466454-engine-valve-spring","title":"FMBP 466454 Engine Valve Spring","description":"\u003ch2\u003ePerformance Valve Spring Overview\u003c\/h2\u003e\u003cp\u003eMelling 466454 is a performance engine valve spring built for street, circle track, drag race, and other high-demand valvetrain setups. It uses chrome silicon construction and a single-spring design with 130 lb installed pressure and 315 lb open pressure.\u003c\/p\u003e\u003cp\u003eCompatible with a wide range of Chevrolet and GMC applications, including Chevrolet Camaro, Chevrolet Chevelle, and GMC Jimmy fitments, this spring is specified for performance use where stable valve control matters. The 466454 part number is also listed across many classic GM truck and passenger car applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChrome silicon material for performance valvetrain service\u003c\/li\u003e\n\u003cli\u003eSingle spring design\u003c\/li\u003e\n\u003cli\u003e130 lb installed pressure\u003c\/li\u003e\n\u003cli\u003e315 lb open pressure\u003c\/li\u003e\n\u003cli\u003eFits a broad range of Chevrolet and GMC performance and truck applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Fitment and Design\u003c\/h2\u003e\u003cp\u003eThis Melling valve spring is engineered around a 1.720-inch installed height, 1.113-inch coil bind height, and 1.174-inch spring open height. It measures 0.885 inch inside diameter and 1.259 inch outside diameter, giving builders a defined spec for matching camshaft and cylinder head requirements. The 466454 part number is a performance-grade spring intended for engines that need consistent seat and open pressure under load.\u003c\/p\u003e\u003cp\u003eBrand Line Performance identifies this spring as part of Melling’s performance-focused range, which spans standard, heavy-duty, and race-ready valve spring options. For buyers searching for a Chevrolet Camaro valve spring, Chevrolet Chevelle valve spring, or GMC Jimmy valve spring, this listing provides a direct spec match for many older GM platforms.\u003c\/p\u003e\u003ch2\u003eWhat This Spring Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eValve float at higher engine speeds\u003c\/li\u003e\n\u003cli\u003eInconsistent valve control under performance use\u003c\/li\u003e\n\u003cli\u003eSpring pressure mismatch during valvetrain setup\u003c\/li\u003e\n\u003cli\u003eNeed for a single-spring performance replacement\u003c\/li\u003e\n\u003cli\u003eFitment requirements for many classic Chevrolet and GMC 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 against your camshaft and cylinder head specifications before installation. This part is listed for numerous Chevrolet and GMC applications, so confirm the exact engine and valvetrain setup for your vehicle before ordering. Professional installation and valvetrain measurement are recommended for performance engine builds.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eMelling positions this spring within its performance product line, covering street through race applications with multiple spring designs and pressure ranges. The 466454 part number is supported by published dimensional and pressure specifications for application matching.\u003c\/p\u003e","brand":"FMBP","offers":[{"title":"Default Title","offer_id":53721565888693,"sku":"FMBP-466454","price":17.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ML_466454_Fro.jpg?v=1794122171","url":"https:\/\/www.partcatalog.com\/products\/fmbp-466454-engine-valve-spring","provider":"PartCatalog","version":"1.0","type":"link"}