Fitment

Year	Make	Model	Engine
2019-2020	Ram	Ram 2500, Ram 3500, Ram 4500, Ram 5500	6.7L Cummins

Description

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

Performance Specifications

Manufacturer-published specifications from D&J Precision Machine.

Power Rating	1000 HP
Timing Cover	Timing Cover, Oil Pan & Break-In Oil Included
Head Studs	9/16 HD
Head Upgrades	Upgraded Valve Seats & Thread-In Soft Plugs
Head Porting	5-Axis CNC Ported 200 CFM
Camshaft	Tow Performance Camshaft
Connecting Rods	Billet X-Beam Rods

Features

• 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

Specifications

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

Core Charge

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.

Notes

• 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.