{"product_id":"essential-reman-long-block-6-6l-lml-duramax-2011-2016-chevrolet-gmc-hd","title":"Essential Reman Long Block | 2011-2016 Chevrolet 6.6 Duramax LML","description":"\u003cp\u003e\u003cspan\u003eThe D\u0026amp;J Precision Machine Essentials Long Block is a replacement engine solution for 2011-2016 GM 6.6L LML Duramax applications. Each engine is completely disassembled, cleaned, inspected, precision machined, and rebuilt to D\u0026amp;J Precision Machine specifications.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe block is precision machined and matched with OEM-spec Tier 1 pistons and rings as required to achieve proper fit and performance. Cylinder heads are inspected and resurfaced with recut valve seats and new valves. The upgraded L5P top-hat valve stem seal design helps improve valve sealing and long-term durability.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe engine is assembled with Tier-1 head gaskets and all-new bearings, thrust washers, lifters, valve springs, and freeze plugs.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eEach engine is measured and tested in-house using D\u0026amp;J Precision Machine’s RMC ETS test equipment before shipment. The engine undergoes a controlled test sequence to verify key operating conditions, including cylinder compression and coolant testing. This in-house testing allows D\u0026amp;J to identify potential issues before the engine leaves the facility, providing an additional level of quality control and helping ensure the completed long block is ready for installation and service.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe result is a professionally remanufactured LML Duramax long block designed to provide dependable performance for everyday driving and towing applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"summary__title\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eRemanufactured Long Block: Fully rebuilt to D\u0026amp;J Precision Machine specifications for a reliable replacement engine.\u003c\/li\u003e\n\u003cli\u003ePrecision Machined: CNC blueprinted, bored, honed, and deck surfaced for precise cylinder geometry and proper piston fit. Each crankshaft is checked for straightness and size and repaired as needed.\u003c\/li\u003e\n\u003cli\u003eNew OEM-Spec Tier 1 Pistons and Rings: Provides a high-quality piston and ring package for proper fit, sealing, and consistent engine performance.\u003c\/li\u003e\n\u003cli\u003eRemanufactured Cylinder Heads: Resurfaced and fitted with recut valve seats and new valves for proper sealing and reliable valve operation. The upgraded L5P top-hat valve stem seal design helps prevent valve seal failure and improve long-term durability.\u003c\/li\u003e\n\u003cli\u003eTier-1 Head Gaskets: Provides reliable cylinder sealing to help address common LML head gasket failure.\u003c\/li\u003e\n\u003cli\u003eKeyed Crankshaft and Camshaft: Addresses a known failure point by providing positive mechanical retention between the shaft and gear, helping prevent unwanted movement and related component failure.\u003c\/li\u003e\n\u003cli\u003eNew Bearings and Thrust Washers: Restores proper internal clearances and supports reliable engine operation.\u003c\/li\u003e\n\u003cli\u003eNew Valves: New high-quality valves provide reliable sealing and consistent valve operation for improved long-term durability and performance.\u003c\/li\u003e\n\u003cli\u003eNew Valve Springs: Restores proper valvetrain operation and performance.\u003c\/li\u003e\n\u003cli\u003ePrecision Assembly: Critical engine dimensions and clearances are verified throughout the build for consistent quality.\u003c\/li\u003e\n\u003cli\u003eIn-House RMC Engine Testing System: Each engine is tested using D\u0026amp;J Precision Machine’s RMC ETS-100 equipment to verify oil pump pressure and volume, cylinder compression, and cooling system integrity before shipment.\u003c\/li\u003e\n\u003cli\u003eBuilt for Everyday Use: Designed to provide reliable performance for everyday driving, and towing applications.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DJ Precision Machine","offers":[{"title":"Default Title","offer_id":44254307057782,"sku":"DJPLB100116","price":9499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/0042\/8662\/files\/image002.png?v=1790605904","url":"https:\/\/djprecisionmachine.com\/products\/essential-reman-long-block-6-6l-lml-duramax-2011-2016-chevrolet-gmc-hd","provider":"djprecisionmachine.com","version":"1.0","type":"link"}