{"product_id":"kpmi-valve-guide-in-ex-std-cast-iron-hd-evolution-1987-1999-191-57003c","title":"KPMI Valve Guide - IN \/ EX Std. Cast Iron HD Evolution 1987-1999 — Harley-Davidson (1984-2004)","description":"\u003cp\u003eKPMI cast iron valve guide for Harley Evolution engines, 1987-1999. Direct replacement for intake and exhaust positions to restore proper valve sealing and reduce oil consumption.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCast iron construction\u003c\/li\u003e\n  \u003cli\u003eFits intake and exhaust positions\u003c\/li\u003e\n  \u003cli\u003eStandard size specification\u003c\/li\u003e\n  \u003cli\u003eDirect OEM replacement\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 KPMI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 20-4320C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Cast iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 0.75 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 3.55 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 0.65 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.1 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson Evolution engines, 1987-1999, in both intake and exhaust valve positions.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this fit my 2000+ Harley Twin Cam?\u003c\/h3\u003e\n\u003cp\u003eNo — this guide is specific to Evolution engines only. Twin Cam models 2000 and newer require a different part number.\u003c\/p\u003e\n\u003ch3\u003eDoes this guide work for both intake and exhaust valves?\u003c\/h3\u003e\n\u003cp\u003eYes — this standard size guide fits both intake and exhaust valve positions in Evolution heads.\u003c\/p\u003e\n\u003ch3\u003eWhat's the benefit of replacing a worn valve guide?\u003c\/h3\u003e\n\u003cp\u003eA new guide restores proper valve sealing, reduces oil consumption, and improves overall engine efficiency and compression.\u003c\/p\u003e\n\u003ch3\u003eIs installation a DIY job?\u003c\/h3\u003e\n\u003cp\u003eValve guide replacement requires cylinder head removal and specialized press tooling — best performed by a qualified engine builder or machine shop.\u003c\/p\u003e","brand":"KPMI","offers":[{"title":"Default Title","offer_id":53035006296175,"sku":"191-57003C","price":9.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_d32cbf8c-861b-4d7e-83fa-789543d6b542.png?v=1779559028","url":"https:\/\/vtwinbikers.com\/products\/kpmi-valve-guide-in-ex-std-cast-iron-hd-evolution-1987-1999-191-57003c","provider":"Vtwinbikers","version":"1.0","type":"link"}