{"product_id":"s-s-cycle-valve-spring-kit-0-550-lift-for-panhead-and-shovelhead-engines-48-84-part-no-90-2053","title":"S\u0026S Cycle Valve Spring Kit 0.550\" Lift for Panhead and Shovelhead Engines 48-84 | Part No. 90-2053","description":"Valve Spring Kit - 0.550\" Lift - Panhead | Shovelhead Engines '48-'84\n\u003cp\u003eThe S\u0026amp;S Cycle Valve Spring Kit (Part No. 90-2053) is designed to optimize valve operation in Harley-Davidson Panhead and Shovelhead engines from 1948 to 1984. This kit provides additional rocker clearance for models from 1948 through 1965, ensuring proper valve function and reducing the risk of valve-to-rocker interference. It is compatible with stock-style bottom collars, valve guides, and valves with a 3\/8\" stem diameter, making it a reliable upgrade for stock engine configurations. The kit is also suitable for use with thin-stem valves when thicker keepers are employed to maintain correct valve stem-top collar engagement, providing flexibility for various valve setups. Included are late single bottom collars, specifically designed for use with S\u0026amp;S cylinder heads on Shovelhead models and stock late '81-'85 heads, ensuring proper installation and performance across different engine styles. Made in the USA, this valve spring kit is engineered to support camshaft lifts up to 0.550\", offering increased performance potential without compromising reliability. Whether you're restoring a vintage Harley or upgrading for better performance, this kit provides the quality and compatibility needed to ensure smooth, reliable operation in your Panhead or Shovelhead engine.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDesigned for Harley-Davidson Panhead and Shovelhead engines from 1948-1984\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAllows additional rocker clearance for 1948-1965 models\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with stock-style bottom collars and valve guides\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSuitable for valves with 3\/8\" stem diameter and stock keepers\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSupports thin-stem valves with thicker keepers for proper engagement\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes late single bottom collars for S\u0026amp;S and late '81-'85 heads\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEngineered to support cam lifts up to 0.550\"\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMade in the USA for quality assurance\u003c\/li\u003e\u003c\/ul\u003e","brand":"S\u0026S CYCLE","offers":[{"title":"Default Title","offer_id":43032372674654,"sku":"DS199729","price":242.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/2545\/7758\/files\/56647.png?v=1784508001","url":"https:\/\/vtwinvisionary.com\/products\/s-s-cycle-valve-spring-kit-0-550-lift-for-panhead-and-shovelhead-engines-48-84-part-no-90-2053","provider":"V-TwinVisionary","version":"1.0","type":"link"}