{"product_id":"kibblewhite-upper-valve-spring-collar-set-for-harley-davidson-fl-models","title":"Kibblewhite Upper Valve Spring Collar Set Harley FL 1948-57","description":"\u003cdiv\u003e\n\u003ch1\u003eKibblewhite Upper Valve Spring Collar Set for Harley FL Engines (1948–1957)\u003c\/h1\u003e\n\u003cp\u003ePrecisely engineered to preserve valve spring tension on Harley FL engines with stock-lift cams. The Kibblewhite 20-20431 Upper Valve Spring Collar Set is designed specifically for stock lift Cam applications in Harley Davidson FL models from 1948 to 1957. Made in the USA, this set offers a precise fit and reliable performance for vintage restorations and routine maintenance.\u003c\/p\u003e\n\u003cp\u003eKey benefits include maintaining proper valve spring tension during engine operation, supporting longevity and consistent performance of original FL cylinder heads. Each collar set is crafted to fit standard valve springs and to integrate smoothly with standard maintenance workflows for classic Harley engines.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eDesigned for stock lift cams; compatibility with Harley Davidson FL engines 1948–1957\u003c\/li\u003e \u003cli\u003eManufactured in the USA with durable, high-quality materials\u003c\/li\u003e \u003cli\u003eIncludes a complete set of upper valve spring collar components for reliable operation\u003c\/li\u003e \u003cli\u003ePrecision-engineered to fit standard valve springs and support engine longevity\u003c\/li\u003e \u003cli\u003eEasy to install with typical valve-spring tooling for efficient maintenance and rebuilds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAccessory items commonly used with this collar set include 16-1774 (Bench Valve Spring Tool), 41-0168 (Gasket Sealer), and 41-0151 (Gasoila Red Varnish Sealant), helping streamline restoration projects. Ideal for classic Harley Davidson FL rebuilds and ongoing maintenance where original-spec components are required.\u003c\/p\u003eKibblewhite upper valve spring collar set is for stock lift cams.\n\u003cp\u003eThe Kibblewhite Part Number 20-20431 Upper Valve Spring Collar Set is designed specifically for stock lift cams in Harley Davidson FL models from 1948 to 1957. Crafted in the USA, this set ensures a precise fit and reliable performance for vintage motorcycle restorations and maintenance. Each set includes high-quality components engineered to maintain proper valve spring tension, which is critical for optimal engine operation and longevity. Whether you're rebuilding or performing routine maintenance, these collar sets provide the durability and consistency you need for classic Harley Davidson engines.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eDesigned for stock lift cams, ensuring compatibility with original Harley Davidson FL engines from 1948-1957\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eManufactured in the USA with high-quality materials for durability and reliable performance\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eIncludes a set of collar components that maintain proper valve spring tension during engine operation\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003ePrecision-engineered to fit standard valve springs, supporting engine longevity and performance\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eEasy to install with compatible accessory tools for efficient maintenance and rebuilds\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eAccessory Items: 16-1774 - Bench Valve Spring Tool, 41-0168 - Gasgacinch Gasket Sealer, 41-0151 - Gasoila Red Varnish Sealant\u003c\/li\u003e\u003c\/ul\u003e\n\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson FL 1948\u003cbr\u003e\nHarley Davidson FL 1949\u003cbr\u003e\nHarley Davidson FL 1950\u003cbr\u003e\nHarley Davidson FL 1951\u003cbr\u003e\nHarley Davidson FL 1952\u003cbr\u003e\nHarley Davidson FL 1953\u003cbr\u003e\nHarley Davidson FL 1954\u003cbr\u003e\nHarley Davidson FL 1955\u003cbr\u003e\nHarley Davidson FL 1956\u003cbr\u003e\nHarley Davidson FL 1957\u003cbr\u003e\nHarley Davidson FL 1958\u003cbr\u003e\nHarley Davidson FL 1959\u003cbr\u003e\nHarley Davidson FL 1960\u003cbr\u003e\nHarley Davidson FL 1961\u003cbr\u003e\nHarley Davidson FL 1962\u003cbr\u003e\nHarley Davidson FL 1963\u003cbr\u003e\nHarley Davidson FL 1964\u003cbr\u003e\nHarley Davidson FL 1965\u003c\/div\u003e","brand":"Kibblewhite","offers":[{"title":"Default Title","offer_id":44653356023850,"sku":"11-1472","price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/11-1472a.jpg?v=1785898772","url":"https:\/\/atticusgoods.com\/products\/kibblewhite-upper-valve-spring-collar-set-for-harley-davidson-fl-models","provider":"Atticus Goods","version":"1.0","type":"link"}