{"product_id":"feuling-lifters-race-series-4051-4018-811-04051","title":"Feuling Lifters - Race Series (4051 \/ 4018) — Harley-Davidson Softail Heritage Classic, Road King, Softail Fat Boy (1999-2025)","description":"\u003cp\u003eFeuling Race Series hydraulic lifters built from steel for high-lift cam applications and elevated valve spring pressures. Designed with a slower bleed-down rate to maintain oil flow, increase RPM capability, and reduce valve float on street and strip engines.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSteel body construction\u003c\/li\u003e\n  \u003cli\u003eSlower bleed-down rate for sustained oil pressure\u003c\/li\u003e\n  \u003cli\u003eMaintains top-end oil flow at high RPM\u003c\/li\u003e\n  \u003cli\u003eReduces valve float and promotes stability\u003c\/li\u003e\n  \u003cli\u003eSpin-Tron dyno developed and track proven\u003c\/li\u003e\n  \u003cli\u003eMade in the U.S.A.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\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 4018\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 5 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 6.2 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 3.45 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.3 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits V-twin motorcycles. Recommended for engines running higher than 185 lbs. valve spring seat pressure and large-lift cam profiles.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat's the difference between Race Series and standard Feuling lifters?\u003c\/h3\u003e\n\u003cp\u003eRace Series lifters have a slower bleed-down rate and are engineered for higher valve spring pressures and aggressive cam profiles beyond stock applications.\u003c\/p\u003e\n\u003ch3\u003eDo I need a high-volume oil pump with these lifters?\u003c\/h3\u003e\n\u003cp\u003eFeuling recommends a high-volume oil pump to keep these lifters quiet and performing at their best, especially on performance engines.\u003c\/p\u003e\n\u003ch3\u003eAre these compatible with Feuling oil pumps?\u003c\/h3\u003e\n\u003cp\u003eYes — Race Series lifters work with both Feuling HP+ and Race Series oil pumps.\u003c\/p\u003e\n\u003ch3\u003eWill these help reduce valve float?\u003c\/h3\u003e\n\u003cp\u003eYes. The slower bleed-down design and sustained oil pressure reduce valve float and improve valve-train stability at higher RPM.\u003c\/p\u003e\n\u003ch3\u003eCan I use these on a street bike?\u003c\/h3\u003e\n\u003cp\u003eYes — Race Series lifters are designed for both street and strip engines, as long as your valve spring pressure and cam profile match Feuling's recommendations.\u003c\/p\u003e","brand":"Feuling","offers":[{"title":"Default Title","offer_id":53035379228783,"sku":"811-04051","price":307.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_8627a4b3-3c5a-43ce-ab60-47e01bb446e8.png?v=1779562003","url":"https:\/\/vtwinbikers.com\/products\/feuling-lifters-race-series-4051-4018-811-04051","provider":"Vtwinbikers","version":"1.0","type":"link"}