The Street Performance 6.7 Cummins Common Rail Long Block is designed for high-performance street applications, delivering up to 1000 HP with enhanced airflow, durability, and precision machining. This build features D&J X-Beam Stock Length Billet Rods, a Stage 1 High-Performance Cylinder Head, and fire-ringed grooves with custom ARP 9/16 head studs for superior sealing under extreme boost. Fully blueprinted, balanced, and CNC-machined, this long block is built for maximum power and reliability. Shipped pre-lubed with break-in oil and including an oil pan and front cover, this engine is ready for seamless installation. Manufactured by D&J Precision Machine, this long block is the ultimate upgrade for performance-driven Cummins builds.
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