{"product_id":"hamilton-cams-2025-ram-2500-3500-6-7l-cummins-flat-tappet-conversion-kit","title":"Hamilton Cams 2025+ Ram 2500\/3500 6.7L Cummins Flat Tappet Conversion Kit","description":"\u003cp\u003eFix the valvetrain on your \u003cstrong\u003e2025+ Ram 2500\/3500 6.7L Cummins\u003c\/strong\u003e with the \u003cstrong\u003eHamilton Cams Flat Tappet Conversion Kit\u003c\/strong\u003e. A forged steel camshaft, DLC-coated tappets, heavy-duty pushrods and upgraded rocker arms — backed by decades of research, thousands of dyno tests and millions of real-world miles.\u003c\/p\u003e\n\u003ch4\u003eWhy Choose the Hamilton Cams Flat Tappet Conversion Kit?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForged steel camshaft\u003c\/strong\u003e – Hamilton’s 178 steel cams are forged, not cut from bar stock, for a denser, more uniform grain structure; a natural “halo” formed during forging adds strength for extended service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDLC-coated tappets\u003c\/strong\u003e – Gas carburized and polished for a stable base metal, then finished with an ultra-hard Diamond-Like Carbon coating that reduces friction and wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty pushrods\u003c\/strong\u003e – 3,500+ lbs buckling force versus around 1,800 lbs for OEM pushrods, reducing deflection at high cylinder pressures and keeping valve timing consistent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgraded rocker arms\u003c\/strong\u003e – High-quality casting for stress and heat cycles, a gas carburized ball and foot, and a DLC-coated trunnion that minimizes the galling common to OEM trunnions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEMA-certified, 49-state compliant\u003c\/strong\u003e – Tested and certified for street use in 49 states.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eKit Includes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eForged steel camshaft\u003c\/li\u003e\n\u003cli\u003eDLC-coated tappets\u003c\/li\u003e\n\u003cli\u003eHeavy-duty pushrods\u003c\/li\u003e\n\u003cli\u003eUpgraded rocker arms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eFitment Notes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eListed for the 2025–2026 Cummins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIf your engine block or cylinder head has been surfaced, contact Hamilton Cams for verification before ordering\u003c\/strong\u003e to ensure proper kit fitment.\u003c\/li\u003e\n\u003cli\u003eThink of this as a fix for stock or mild builds that do not exceed 4,000 RPM and use OEM springs. Operation above 4,000 RPM and high spring pressures are discouraged for longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eInstallation Highlights\u003c\/h5\u003e\n\u003cp\u003eSet intake valve lash to 0.010″ and exhaust to 0.020″. Check lash after five minutes of running, and recheck after retorquing the cylinder head. Lash that is too loose increases impact and can damage the tappets or coating; lash that is too tight prevents adequate oil film before the next impact cycle.\u003c\/p\u003e\n\u003ch5\u003eFits These Models\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e2025+ Ram 2500\/3500 6.7L Cummins\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eIntake valve lash: 0.010″\u003c\/li\u003e\n\u003cli\u003eExhaust valve lash: 0.020″\u003c\/li\u003e\n\u003cli\u003ePushrod buckling force: 3,500+ lbs (OEM around 1,800 lbs)\u003c\/li\u003e\n\u003cli\u003eRecommended max: 4,000 RPM with OEM springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eNotes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eIncorrect oil, incorrect lash, valve float, high RPM, high spring pressure or metal contamination can let the DLC coating degrade and delaminate. Wear metals from other engine failures can enter the non-filtered splash oil — clean oil and proper filtration are essential.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproved oil required:\u003c\/strong\u003e an approved 15W-40 for normal temperatures, or an approved 5W-40 for sub-zero Fahrenheit conditions, with adequate zinc, phosphorus and molybdenum for flat tappet operation. Confirm any 5W-40 with Hamilton Cams before use.\u003c\/li\u003e\n\u003cli\u003eApproved oils: Valvoline Full Synthetic 15W-40, Valvoline Synthetic Blend 15W-40, Valvoline All-Terrain 15W-40, Schaeffer’s 15W-40, Mobil Delvac Extreme 15W-40, LIQUI MOLY Touring High Tech 15W-40, Driven Racing Oil 15W-40, Redline 15W-40.\u003c\/li\u003e\n\u003cli\u003eAcceptable oils: Shell Rotella T6 Full Synthetic 15W-40, Shell Rotella T5 15W-40.\u003c\/li\u003e\n\u003cli\u003ePreferred oil filter: Fleetguard Stratapore LF16035.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRunning a non-approved oil voids the warranty.\u003c\/strong\u003e All warranty claims must include the failed parts and an oil sample.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSKU: 07-CC-24V25-26\u003c\/p\u003e\n\u003ch5\u003eQuestions? We’re Here to Help.\u003c\/h5\u003e\n\u003cp\u003eHave questions about upgrades for your 2025+ 6.7L Cummins? Contact FASS Motorsports and we’ll get you dialed:\u003c\/p\u003e\n\u003cp\u003ePhone: \u003cstrong\u003e636-429-7020\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEmail: \u003cstrong\u003einfo@fassmotorsports.com\u003c\/strong\u003e\u003c\/p\u003e","brand":"Hamilton Cams","offers":[{"title":"Default Title","offer_id":44961050198058,"sku":"HC07-CC-24V25-26","price":3499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/8305\/files\/25camkit-pdf.jpg?v=1792094616","url":"https:\/\/fassmotorsports.com\/products\/hamilton-cams-2025-ram-2500-3500-6-7l-cummins-flat-tappet-conversion-kit","provider":"FASS Motorsports","version":"1.0","type":"link"}