{"product_id":"colt-cams-2019-2024-6-7-cummins-flat-tappet-reliability-kit","title":"Colt Cams 2019-2024 6.7 Cummins Flat Tappet Reliability Kit","description":"\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e2019-2024 6.7 Cummins Flat Tappet Reliability Kit\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThe Colt Camshaft Reliability Kit allows 2019-2024 5\u003csup\u003eth\u003c\/sup\u003e Gen Dodge Ram trucks to upgrade the reliability of their 6.7L Cummins valve train by converting the failure-prone stock hydraulic roller camshaft to the exceptionally reliable flat tappet and cast camshaft combination.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eChilled cast iron camshafts have advantages over steel, especially when used in flat tappet combinations.\u003cspan\u003e  \u003c\/span\u003eThe semi-porous grain structure of cast iron creates natural voids that hold important oil lubrication.\u003cspan\u003e  \u003c\/span\u003eChilled cast iron produces extremely hard and durable wear surfaces with proven million-mile reliability that started in 1989 B-series 5.9L Cummins engines with continued reliability thru 2018 6.7L Cummins engines. \u003cspan\u003e \u003c\/span\u003eAlthough high zinc and phosphorus oils with greater than 1,200 ppm ZDDP provide additional boundary layer protection for flat tappet camshafts, chill-hardened cast iron cams and lifters are more tolerant to lower ZDDP oils (i.e. Cummins allows for CJ-4 and CK-4 oil usage in 2018 and older model years).\u003cspan\u003e  \u003c\/span\u003eAfter the initial 20-minute break-in period, Colt Flat Tappet Reliability Kits are compatible with any oil recommended for your Cummins 6.7L engine. \u003cspan\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eKey Kit Components\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoListParagraphCxSpFirst\"\u003e\u003cb\u003e\u003cspan\u003e1.       \u003c\/span\u003e\u003c\/b\u003eChoice of Colt Cams Tow Series 181\/210 or Street Series 181\/218 chilled cast camshaft.\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoListParagraphCxSpMiddle\"\u003e\u003cb\u003e\u003cspan\u003e2.       \u003c\/span\u003e\u003c\/b\u003eSet of (12) Colt 1.4” flat tappet retrofit chilled cast lifters.\u003c\/p\u003e\n\u003cp class=\"MsoListParagraphCxSpMiddle\"\u003e\u003cb\u003e\u003cspan\u003e3.       \u003c\/span\u003e\u003c\/b\u003eSet of (12) Colt 7\/16” Chromoly Pushrods (6,500 lb buckling strength)\u003c\/p\u003e\n\u003cp class=\"MsoListParagraphCxSpLast\"\u003e\u003cb\u003e\u003cspan\u003e4.       \u003c\/span\u003e\u003c\/b\u003eSet of (6) 6.7L-style adjustable rocker arm pairs (intake\/exhaust) w\/pedestals\u003c\/p\u003e\n\u003cp class=\"MsoListParagraphCxSpLast\"\u003e\u003cstrong\u003e5.       \u003c\/strong\u003e1oz Tube of Assembly Grease\u003c\/p\u003e\n\u003cp class=\"MsoListParagraphCxSpLast\"\u003eOptional: Add our 15w-40 Conventional Oil + Filter for break-in.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eDuring install, enlarged barrel 1.4” retrofit flat tappet lifters are used to replace the OEM hydraulic roller lifters.\u003cspan\u003e  \u003c\/span\u003eTake note that Colt retrofit lifters feature a 1.40” foot diameter ensuring proper cam journal clearance for all 2019+ engine blocks.\u003cspan\u003e  \u003c\/span\u003eThe new Colt flat tappet camshaft is then used to replace the factory stock roller camshaft.\u003cspan\u003e  \u003c\/span\u003eNew upgraded 7\/16” chromoly pushrods with the traditional 10mm ball and cup design replace the factory stock 3\/8” failed pushrods.\u003cspan\u003e  \u003c\/span\u003eThe system is then completed with new early 24v 6.7 Cummins style adjustable rocker arm and pedestal assemblies.\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=xK5GcNKc_2A\" rel=\"noopener\" target=\"_blank\"\u003eHow to Adjust Valve Lash\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eColt has separated itself in the world of aftermarket diesel performance camshafts by producing OEM quality camshafts engineered with smooth lobe geometries that provide for quiet valve train and million-mile reliability, exactly what every Cummins is known for.\u003cspan\u003e  \u003c\/span\u003eIn addition to the (Big Stick) Tow Series 181\/210 and Street Series 181\/218 camshafts, Colt offers multiple custom-ground upgraded camshaft profiles for owners looking to extract more from their Cummins engine.\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eWhy 2019-2024 6.7 Cummins Fail\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e2019+ 6.7 Cummins engines come standard with hydraulic roller camshafts with mass manufactured 3\/8” ball end pushrods, and non-adjustable rocker arm assemblies.\u003cspan\u003e  \u003c\/span\u003eIt is common for the hydraulic roller lifters to bleed down when parked overnight leading to noisy valvetrain at startup.\u003cspan\u003e  \u003c\/span\u003eThis “typewriter tick” gets worse overtime as mileage accrues and the roller lifters take longer to pump up and remove lash in the system.\u003cspan\u003e  \u003c\/span\u003eTo make matters worse, the traditional cup on the pushrod (that holds oil to prevent dry starts) was replaced with a ball and inverted cup on the rocker arm.\u003cspan\u003e  \u003c\/span\u003eThe dry start combined with the bleed down typewriter ticking hammers the pushrod ball and rocker cup mating surfaces.\u003cspan\u003e  \u003c\/span\u003eOver time, pushrod ball and rocker cup wear introduce heavy abrasive wear metals into the oil system that accelerate wear throughout the whole engine.\u003cspan\u003e  \u003c\/span\u003eLeft untreated, the pushrods wear enough clearance to jump the cup, bend the pushrod, and the now free-floating roller lifters begin to chatter and fret the camshaft lobes.\u003cspan\u003e  \u003c\/span\u003eSome customers report factory roller camshaft failures as early as 20,000 miles with some going through multiple camshafts within the factory warranty period.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eDon’t wait for your truck to be sidelined by a failed roller camshaft, fix the problem once and for all with the Colt Flat Tappet Reliability Kit!\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e*We recommend 0.010” intake valve lash and 0.020” exhaust valve lash, rotating the engine and using the companion cylinder method (cyl1 and 6, 2 and 5, cyl 3 and 4) is the Colt recommended way to set and verify valve lash*\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e**We recommend high zinc, greater than 1,200 ppm (ZDDP) oil for the initial 20-minute break-in period.\u003cspan\u003e  \u003c\/span\u003eStart the engine, hold and slowly vary the RPM between 1,500 and 2,200 RPM for a period of 20 minutes.\u003cspan\u003e  \u003c\/span\u003eCamshaft lobes are splash lubricated and elevated RPM along with variable speed will ensure adequate splash lubrication for the critical initial break-in period.\u003cspan\u003e  \u003c\/span\u003eHigh zinc oil during break-in acts like an added insurance policy to ensure your camshaft doesn’t go flat: Power Driven 15w-40, Driven DBR, Motul 10w-40 Break-In, Amsoil SAE30 Break-In, VR1 10w-40 are all examples of high zinc oil.\u003cspan\u003e  \u003c\/span\u003eAfter break-in, change the oil and filter and refill with your choice of engine oil suitable for your Cummins 6.7L engine i.e. CK-4 specification.\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cem\u003e\u003cstrong\u003e***Professional installation recommended. Although a competent DIY mechanic can install this kit, the fastest installation requires lifting the cab of the truck and most DIY mechanics do not have a lift.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eBreak-In Procedure:\u003c\/p\u003e\n\u003cul style=\"margin-top: 0in;\" type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eApply Cam Lube on all lobes, lifter faces, distributor gears, and oil pump gears.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eOil all bearing journals and lifter barrels.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eAlways turn the engine over by hand before starting. Check for clearances and proper timing location.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eFire up to 1800 – 2000 RPM for 18 – 20 minutes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003eNote: Most oil companies have taken out a percentage of additives that are meant for anti-scuffing for the break-in on flat tappet cams, so please ask your local auto parts professional for the best zinc additive they have and add it to your oil before you fire up your engine for the first time (we prefer ZDD Plus as utilized in Power Driven oils). \u003c\/p\u003e","brand":"Colt Cams","offers":[{"title":"Stage 2 for Towing (Big Stick)","offer_id":53225696952607,"sku":"RVK0003","price":2599.0,"currency_code":"USD","in_stock":true},{"title":"Stage 3 Street Performance","offer_id":53225696985375,"sku":"RVK0004","price":2649.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/9098\/6271\/files\/FlatTappetConversionKit_1.png?v=1794341192","url":"https:\/\/powerdriven.com\/products\/colt-cams-2019-2024-6-7-cummins-flat-tappet-reliability-kit","provider":"Power Driven Diesel","version":"1.0","type":"link"}