2019-2020 Cummins 6.7L Street Performance Long Block (DJPLB100081)

The Street Performance 6.7 Cummins Long Block is engineered for high-performance street applications, delivering up to 1000 HP while maintaining durability and reliability. Built with D&J X-Beam Stock Length Billet Rods and a Stage 1 High-Performance Cylinder Head, this long block is precision-machined, blueprinted, and balanced to handle extreme power demands. The fire-ringed cylinder head, paired with custom ARP 9/16" head studs, ensures maximum head-to-block sealing under high boost. Shipped pre-lubed with break-in oil, this long block is fully assembled and ready for installation. Manufactured by D&J Precision Machine, this engine is built to withstand the rigors of high-horsepower street and track builds.

Part Number: DJPLB100081

Manufacturer-published specifications from D&J Precision Machine.

• 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: Provides exceptional strength for high-power builds
• Fire-Ringed Cylinder Head: Machined for superior 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 seamless installation

• Performance Rating: Up to 1000 HP
• Warranty: 3 months parts and 3 months labor
• Manufactured By: D&J Precision Machine

A refundable core charge applies to this product. The core deposit will be refunded once a complete, rebuildable core is returned within 30 days of receipt. Cores must be complete and serviceable per D&J Precision Machine requirements.

• Freight charges apply; this item ships LTL.
• Made-to-order; lead times vary. Contact us for current ETA.
• Not for sale on California-licensed vehicles per BD Diesel / D&J Precision Machine policy.

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