{"product_id":"d-j-heavy-hauler-6-7-cummins-long-block-2019-2024-6-7-cummins","title":"D\u0026J Heavy Hauler 6.7 Cummins Long Block | 2019-2024 6.7 Cummins","description":"\u003cp\u003eThe D\u0026amp;J Heavy Hauler 6.7 Cummins Long Blocks for 2019+ models come fully assembled, including the oil pan, rear crank seal, front cover and crank seal, and oil filter housing, along with our Stage 1 High-Performance Cylinder Head. We include a street\/towing camshaft, which typically results in a 200-300 degree drop in EGT and an increase in fuel economy due to the additional airflow. These engines are assembled with the best parts available, backed by our years of experience in the high-performance diesel industry, making them perfect for demanding work trucks. This long block is rated for up to 700 hp, providing robust performance for high-demand applications.\u003c\/p\u003e\n\u003cp\u003eTo address common issues found in 2019+ engines, D\u0026amp;J utilizes components from the more reliable 2018 and older models. These older platforms have a superior track record of reliability compared to the newer engines. By replacing the hydraulic roller lifter setup with solid flat tappets and adjustable rockers, we enhance both reliability and performance. Depending on the year selected, we will use 2019-2020 or 2021-2024 front covers and timing gear housings. The older platform allows for seamless integration, as everything bolts in the same way, and ensures more readily available and less expensive parts down the road. We use NON CGI blocks to rebuild 19+ long blocks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Inspection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDisassembled, crack-checked, blasted, and cleaned before machining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Machining:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCNC bored, line bored, surfaced as needed, and torque plate honed to exact specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom ARP Head Studs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e9\/16\" head studs provide the best head-to-block seal possible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Performance Cylinder Head:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eD\u0026amp;J Stage 1 Performance Cylinder Heads are disassembled, crack-checked, fitted with extra-large heavy-duty seats, machined for thread-in soft plugs, and 5-axis CNC ported. Each head undergoes a CNC high-performance valve job and is pressure-checked before assembly and painting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlueprinted and Balanced:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAll engines are blueprinted, balanced, oil clearance measured, and rings file fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-lubed and Painted:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEngines are painted black and shipped pre-lubed with break-in oil and filter included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachined Rocker Box and Pedestals:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsures a precise fit and optimal performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Power Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRated for up to 700 hp, suitable for high-demand applications.  \u003cstrong\u003eIT IS NOT RECOMMENDED TO\u003c\/strong\u003e \u003cstrong\u003eINCREASE HORSEPOWER ON HEAVY TOWING APPLICATIONS.  TURN THE TUNE DOWN FOR HEAVY TOWING IF YOUR TRUCK IS NOT STOCK.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Components:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizes 2018 and older engine components to replace hydraulic roller lifters with solid flat tappets and adjustable rockers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear-Specific Components:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDepending on the year selected, these will use 2019-2020 or 2021-2024 front covers and timing gear housings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBuild Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNew Pistons\u003c\/li\u003e\n\u003cli\u003e12mm ARP main studs\u003c\/li\u003e\n\u003cli\u003eD\u0026amp;J ARP 9\/16\" Head Studs torqued to 175 ft\/lbs\u003c\/li\u003e\n\u003cli\u003eD\u0026amp;J HD 7\/16\" Pushrods\u003c\/li\u003e\n\u003cli\u003eD\u0026amp;J 200 CFM Stage 1 High-Performance Cylinder Head\u003c\/li\u003e\n\u003cli\u003eD\u0026amp;J tow performance cast cam\u003c\/li\u003e\n\u003cli\u003eNew Tappets\u003c\/li\u003e\n\u003cli\u003eNew Oil Cooler\u003c\/li\u003e\n\u003cli\u003eNew Oil Pump\u003c\/li\u003e\n\u003cli\u003eNew Crankshaft Seals\u003c\/li\u003e\n\u003cli\u003eBillet soft plugs (front, rear, and side)\u003c\/li\u003e\n\u003cli\u003eReconditioned stock connecting rods\u003c\/li\u003e\n\u003cli\u003eFront cover installed\u003c\/li\u003e\n\u003cli\u003eMachined rocker box\u003c\/li\u003e\n\u003cli\u003eMachined rocker pedestals\u003c\/li\u003e\n\u003cli\u003eOEM Adjustable Rocker Assemblies \u003c\/li\u003e\n\u003cli\u003ePre-lubed with break-in oil and filter included\u003c\/li\u003e\n\u003cli\u003ePressure-checked cooling system and crankcase to ensure no leaks on installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Performance Cylinder Head Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll new HD bronze valve guides installed\u003c\/li\u003e\n\u003cli\u003eHeavy-duty extra-large intake and exhaust seats installed\u003c\/li\u003e\n\u003cli\u003eIndustry-leading 5-axis CNC port job\u003c\/li\u003e\n\u003cli\u003eThread-in soft plugs under the valve cover\u003c\/li\u003e\n\u003cli\u003eHigh-performance CNC valve job performed\u003c\/li\u003e\n\u003cli\u003eNew valve seals and soft plugs installed\u003c\/li\u003e\n\u003cli\u003eNew 105# springs installed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOptional Upgrades:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eD\u0026amp;J Billet Timing Cover (2021+ Only) \u003c\/li\u003e\n\u003cli\u003eBillet valve cover\u003c\/li\u003e\n\u003cli\u003eBillet black valve cover\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eShipping and Core Charges:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Charge:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e$3500.00 (Cores can be sent in beforehand to eliminate this charge*)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVaries for each purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCores must include usable crank, cylinder head, rocker bases, oil pan and bolts, pickup tube, timing gear housing, timing gear housing cover and bolts, rear seal housing and bolts, piston cooling nozzles, bolts, lower rocker box, and bolts.  If there are issues with any of the parts, you will not be charged the full core amount, only the amount needed to replace the bad part. Our core charge is based on re-manufactured parts.\u003c\/p\u003e\n\u003cp\u003eUpgrade to our Heavy Hauler 6.7 Cummins Long Block for unparalleled performance and reliability in your high-powered Cummins engine.\u003c\/p\u003e","brand":"D\u0026J Precision","offers":[{"title":"2019-2020","offer_id":48510326276353,"sku":"DJPLB100075","price":14818.99,"currency_code":"USD","in_stock":true},{"title":"2021-2024","offer_id":48510326309121,"sku":"DJPLB100079","price":14818.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0276\/6202\/4797\/files\/19_HH4.webp?v=1776136348","url":"https:\/\/blacklineperformance.com\/products\/d-j-heavy-hauler-6-7-cummins-long-block-2019-2024-6-7-cummins","provider":"Blackline Performance","version":"1.0","type":"link"}