Street Performance Long Block Engine Dodge/Ram 5.9L Cummins 2004.5-2007

• Rated for up to 1000 HP - Engineered for high-performance street and competition applications. High-horsepower tuning is not recommended for heavy towing.
• D&J X-Beam Stock Length Billet Rods - Delivers exceptional strength and durability for high-horsepower builds
• Fire-Ringed Cylinder Head - Custom-machined for maximum head-to-block sealing in high-boost applications
• Stage 1 High-Performance Cylinder Head - 5-axis CNC ported with HD bronze valve guides and oversized intake/exhaust seats for optimized airflow
• Fully Assembled & Pre-Lubed - Includes oil pan, front cover, machined rocker box, and break-in oil for hassle-free installation

The Street Performance 5.9 Cummins Common Rail Long Block is built for high-performance street and track 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.