The 6.7 Cummins Precision Plus Long Block is built for exceptional durability and reliability, making it the perfect choice for street, towing, and work truck applications. This fully assembled long block includes a remanufactured cylinder head, upgraded internal components, and year-specific front covers and timing gear housings for seamless compatibility. To enhance longevity, the hydraulic roller lifters found in 2019+ models are replaced with solid flat tappets and adjustable rockers, eliminating common failure points. Every engine is CNC-machined, balanced, and blueprinted for maximum efficiency and performance. Manufactured by D&J Precision Machine, this long block is pre-lubed with break-in oil and ready for installation.
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