{"product_id":"feuling-lifters-race-series-811-04055","title":"Feuling Race Series Lifters - High-Spring Pressure - Harley Twin Cam \u0026 Milwaukee-Eight","description":"\u003c!-- vt:seo-start --\u003e\n\u003cdiv class=\"vt-brand-bio\" style=\"background:#f6f6f6;border-left:4px solid #c8102e;padding:14px 18px;margin:0 0 20px;border-radius:4px;\"\u003e\n\u003ch2 style=\"margin:0 0 6px;font-size:1.05em;\"\u003eAbout Feuling\u003c\/h2\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.6;\"\u003eFeuling Parts specializes in the internals that decide whether a big-inch V-twin lives or dies — oil pumps, cam plates, lifters, pushrods and camshafts. Its high-volume oil system components are a standard upgrade on high-mileage and high-output Twin Cam and Milwaukee-Eight engines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"line-height:1.65;\"\u003eFeuling Race Series lifters are built for the most demanding V-twin engine applications. These full-travel hydraulic lifters are machined from robust steel and engineered to thrive with large-lift camshafts and extreme valve spring pressures. Their slower bleed-down rate is key to maintaining valvetrain stability and consistent oil flow to the top end.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eWhy riders pick this\u003c\/h3\u003e\u003cul style=\"padding-left:20px;margin:0 0 16px;\"\u003e\n\u003cli style=\"margin:3px 0;\"\u003eSteel body construction for robust valvetrain support\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eFull-travel hydraulic design for consistent operation\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eSlower bleed-down rate for high-spring-pressure cams\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eDyno developed and track proven for reliability\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eRecommended for performance street and race engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen you're pushing your Harley-Davidson engine with an aggressive cam and heavy valve springs, valvetrain stability becomes paramount. Feuling Race Series lifters are specifically designed to meet these challenges, preventing valve float and ensuring maximum lift and RPM capability. They are an essential component for any performance build aiming for significant power gains and reliability.\u003c\/p\u003e\u003ch3\u003eEngineered for Extreme Demands\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSteel body construction for superior strength\u003c\/li\u003e\n\u003cli\u003eFull-travel hydraulic design for consistent performance\u003c\/li\u003e\n\u003cli\u003eSlower bleed-down rate handles high-spring-pressure cams\u003c\/li\u003e\n\u003cli\u003eSpin-Tron dyno developed and track proven\u003c\/li\u003e\n\u003cli\u003eCompatible with Feuling HP+ or Race Series oil pumps\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUnleash Your Engine's Full Potential\u003c\/h3\u003e\u003cp\u003eFeuling Race Series lifters are recommended for performance V-twin engines running over 185 lbs of valve spring seat pressure. By ensuring precise valve control and maintaining optimal oil flow, these lifters help unlock the full potential of your cam upgrade. They are a proven choice for both serious street performance and dedicated race applications, offering the durability and stability needed to perform under pressure.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Feuling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 4055\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 6.3 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 5.05 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 3.5 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.21 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"vt-faq\"\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWhat valve spring pressure can these lifters handle?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eFeuling Race Series lifters are recommended for engines running valve spring seat pressure above 185 lbs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eAre these lifters suitable for a daily rider?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThese lifters are designed for performance street and race engines, making them ideal for riders who demand maximum performance and durability from their V-twin.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eDo these lifters require a special oil pump?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThese lifters are compatible with Feuling HP+ or Race Series oil pumps, which are recommended for optimal oil flow in high-performance applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vt-confidence\" style=\"border-top:1px solid #e5e5e5;margin:24px 0 0;padding:16px 0 0;font-size:0.92em;line-height:1.6;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOrdering from Vtwinbikers\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli\u003eBrand new, sourced through authorized US distribution — never used, never grey-market.\u003c\/li\u003e\n\u003cli\u003eNot sure it fits? Use \u003cstrong\u003eShop by Bike\u003c\/strong\u003e to filter by your year and model, or email us and we will confirm before you order.\u003c\/li\u003e\n\u003cli\u003eHarley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vtwinbikers.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Engine\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/all\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Feuling\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/feuling\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Feuling Race Series Lifters - High-Spring Pressure - Harley Twin Cam \u0026 Milwaukee-Eight\",\"item\":\"https:\/\/vtwinbikers.com\/products\/feuling-lifters-race-series-811-04055\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What valve spring pressure can these lifters handle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Feuling Race Series lifters are recommended for engines running valve spring seat pressure above 185 lbs.\"}},{\"@type\":\"Question\",\"name\":\"Are these lifters suitable for a daily rider?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"These lifters are designed for performance street and race engines, making them ideal for riders who demand maximum performance and durability from their V-twin.\"}},{\"@type\":\"Question\",\"name\":\"Do these lifters require a special oil pump?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"These lifters are compatible with Feuling HP+ or Race Series oil pumps, which are recommended for optimal oil flow in high-performance applications.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"Feuling","offers":[{"title":"Default Title","offer_id":53035380244591,"sku":"811-04055","price":299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_9a537bcd-f52f-47c7-bea6-2a98706f2439.png?v=1779561365","url":"https:\/\/vtwinbikers.com\/products\/feuling-lifters-race-series-811-04055","provider":"Vtwinbikers","version":"1.0","type":"link"}