{"product_id":"kibblewhite-20-2021c-cast-iron-valve-guide-for-1948-1977-harley-davidson-panhead-and-shovelhead","title":"Kibblewhite 20-2021C Cast Iron Valve Guide for 1948–1977 Harley-Davidson Panhead and Shovelhead","description":"\u003cp\u003eAfter chemically separating several samples of cast iron material , analysis and evaluating the test data, we decided to have our own specification of cast iron made exclusively , us. We specify elements such as carbon, silicon, manganese, nickel, chromium, copper and sulfur to produce a highly pearlitic structure with dense fine grains , excellent wear resistance.\u003c\/p\u003e\n\u003cp\u003eThe Kibblewhite 20-2021C is a cast iron valve guide designed for compatible 1948–1977 Harley-Davidson Panhead and Shovelhead engines. This replacement guide supports reliable valve train service and is intended for applications requiring an intake and exhaust guide with an additional 0.001-inch oversize specification. It is a practical choice for engine rebuilds, cylinder head restoration, and replacement of worn or damaged valve guides.\u003cbr\u003eThe guide is manufactured from cast iron to provide a durable foundation for valve support and consistent operation in demanding air-cooled V-twin applications. Its heavy-duty design is suited to professional engine builders and experienced technicians who require dependable replacement components for classic Harley-Davidson engines. Verify the cylinder head, valve, and bore requirements before installation to ensure proper fit and service clearance.\u003cbr\u003eKibblewhite has long been recognized for performance engine components and replacement parts. The 20-2021C guide is sold individually and is identified for intake and exhaust use on Panhead and Shovelhead applications from 1948 through 1977. Follow the engine manufacturer's service procedures for removal, installation, sizing, honing, and final clearance checks. Professional installation is recommended when machining or specialized valve guide tools are required.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBrand: Kibblewhite\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart Number: 20-2021C\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaterial: Cast iron\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: 1948–1977 Harley-Davidson Panhead and Shovelhead engines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePosition: Intake and exhaust\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOversize: 0.001 inch\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eType: Replacement valve guide\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eQuantity: Sold individually\u003c\/li\u003e\u003c\/ul\u003e","brand":"KIBBLEWHITE","offers":[{"title":"Default Title","offer_id":67617041678521,"sku":"961543","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/961543_1692366555.jpg?v=1790803183","url":"https:\/\/atticusgoods.com\/products\/kibblewhite-20-2021c-cast-iron-valve-guide-for-1948-1977-harley-davidson-panhead-and-shovelhead","provider":"Atticus Goods","version":"1.0","type":"link"}