{"product_id":"dfc-diesel-th6707518soalbhd-tow-haul-hd-series-standard-auto-speed-of-air-long-block-2007-5-2018-6-7-dodge-cummins","title":"DFC Diesel TH6707518SOALBHD Tow\/Haul HD Series Standard\/Auto Speed Of Air Long Block | 2007.5-2018 Dodge RAM 6.7L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt To Handle Up To 850 Horsepower\u003c\/li\u003e\n\u003cli\u003eIncludes Wagler Forged Connecting Rods\u003c\/li\u003e\n\u003cli\u003eFeatures Fluidamper Harmonic Balancer\u003c\/li\u003e\n\u003cli\u003eComes With Heavy-Duty Flexplate\u003c\/li\u003e\n\u003cli\u003eBalanced Rotating Assembly Installed\u003c\/li\u003e\n\u003cli\u003eO-Ringed Cylinder Head Included\u003c\/li\u003e\n\u003cli\u003eStage 4 Camshaft For Enhanced Performance\u003c\/li\u003e\n\u003cli\u003eTotal Seal Gapless Piston Rings\u003c\/li\u003e\n\u003cli\u003eCeramic-Coated Piston Crowns For Heat Resistance\u003c\/li\u003e\n\u003cli\u003eDry Film Coated Skirts For Durability\u003c\/li\u003e\n\u003cli\u003eARP 2000 Or OptiTorque Head Studs\u003c\/li\u003e\n\u003cli\u003e5-Year \/ 100,000 Mile Warranty Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhen You Need A Cummins That Can Take It All\u003c\/h4\u003e\n\u003cp\u003eIf you're pushing your truck to its limits and need an engine that doesn't flinch under pressure, the DFC Tow\/Haul HD Series Long Block is exactly what you're after. Built for the guy who's towing heavy loads all week and still wants to light it up on the weekend, this engine delivers the kind of performance and durability few others can touch. It’s designed to handle up to 850 horsepower at the flywheel, so you’ve got plenty of headroom whether you’re hauling equipment or dialing up your tune. What really sets this build apart is the internal reinforcement, it comes with premium Wagler connecting rods, a Fluidamper to control harmonics, and a heavy-duty flexplate that’s ready for serious torque. The rotating assembly is fully balanced to keep things smooth and reliable even when you're running hard for long stretches. All the proven upgrades from the Street and Tow\/Haul Series are here too, which means you're not missing anything when it comes to everyday drivability. This is a long block that doesn't compromise, it’s built to handle the heat, the stress, and the long haul.\u003c\/p\u003e\n\u003ch4\u003eEvery Component Inside This Build Has A Purpose\u003c\/h4\u003e\n\u003cp\u003eThe Tow\/Haul HD Series is the most robust 6.7L Cummins long block DFC offers, combining high-strength internals with exacting machine work for serious power and longevity. It starts with a professionally machined block using Rottler CNC equipment, bored to accept next-over-sized pistons that are ceramic-coated on the crowns and dry film coated on the skirts. These coatings improve heat resistance and reduce friction in demanding conditions, like extended towing or stop-and-go traffic with a full trailer. The engine includes an O-ringed cylinder head and a Cometic MLS gasket set to help seal combustion pressures, especially at higher boost levels. Inside, you’ll find a Stage 4 camshaft and Manton heavy-duty pushrods paired with 103lb valve springs, giving the valvetrain the strength it needs to maintain timing and stability under high load. The addition of Wagler connecting rods significantly increases bottom-end durability, and the Fluidamper helps minimize harmful engine vibrations over time. Every part of this build is there for a reason, to create a reliable, high-output long block that works as hard as you do.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Dodge RAM 6.7L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2007.5-2018 6.7L Dodge Cummins trucks\u003c\/li\u003e\n\u003cli\u003eRated to handle up to 850 HP at the flywheel\u003c\/li\u003e\n\u003cli\u003eBest suited for towing and hauling between 500-750 HP\u003c\/li\u003e\n\u003cli\u003eIncludes all upgrades from Street and Tow\/Haul Series engines\u003c\/li\u003e\n\u003cli\u003eEngine is remanufactured using new OEM or equivalent components\u003c\/li\u003e\n\u003cli\u003eBuilt with Wagler forged connecting rods for added strength\u003c\/li\u003e\n\u003cli\u003eIncludes a Fluidamper to help reduce engine harmonics\u003c\/li\u003e\n\u003cli\u003eComes with a heavy-duty flexplate for high torque use\u003c\/li\u003e\n\u003cli\u003eRotating assembly is balanced for smoother performance\u003c\/li\u003e\n\u003cli\u003eLong block does not include fuel system, turbo, or electronics\u003c\/li\u003e\n\u003cli\u003eHead studs may be ARP 2000 or OptiTorque based on availability\u003c\/li\u003e\n\u003cli\u003eBacked by a 5 year \/ 100,000 mile (160,000 km) warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":68060706832657,"sku":"DDU-TH6707518SOALBHD","price":22579.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/0477\/1089\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_273a8d22-0c93-4cbd-b078-a704705a32de.webp?v=1794721849","url":"https:\/\/gautoparts.com\/products\/dfc-diesel-th6707518soalbhd-tow-haul-hd-series-standard-auto-speed-of-air-long-block-2007-5-2018-6-7-dodge-cummins","provider":"Guaranteed Auto Parts","version":"1.0","type":"link"}