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 featues DandJ X-Beam Stock Length Billet Rods, a Stage 1 High-Performance Cylinder Head, and fire-ringed grooves with custom ARP 9/16 Inch 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 DandJ Precision Machine, this long block is the ultimate upgrade for performance-driven Cummins builds.

Warranty:

Parts

90-Days

Labor

90-Days

Note:
Not for sale on licensed California vehicles

Features:

• Rated for up to 1000 HP - Engineered for high-performance street and competition applications. High-horsepower tuning is not recommended for heavy towing.
• DandJ 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 and Pre-Lubed - Includes oil pan, front cover, machined rocker box, and break-in oil for hassle-free installation