DJPLB100024 Street Performance Long Block Engine

Features:

• Rated for up to 1000 HP
• Designed for street and competition builds
• D&J X-Beam billet connecting rods
• Fire-ringed cylinder head for superior sealing
• 5-axis CNC-ported high-performance head
• HD bronze valve guides for increased durability
• Oversized intake and exhaust valve seats
• Custom ARP 9/16" head studs included
• Fully assembled and pre-lubed for easy install
• Includes oil pan, front cover, and rocker box
• Precision balanced and CNC-machined for reliability

Ultimate Long Block Engine for your High-Performance Build

When you're chasing big power in a 6.7L Cummins, a stock engine just won’t cut it. The factory internals weren’t designed for extreme horsepower, high boost, or aggressive tuning. If you’re building a high-performance street truck or a competition-ready setup, the BD Diesel Street Performance Long Block gives you the strength, airflow, and durability to handle serious power. Instead of gambling on a rebuild, this fully assembled long block provides a rock-solid foundation, built from the ground up with premium components designed to withstand the demands of high-performance applications. One of the biggest upgrades in this engine is the inclusion of D&J X-Beam billet connecting rods. These are a massive improvement over stock rods, which can bend or break under extreme stress. The billet construction provides exceptional strength, allowing this engine to handle aggressive fueling, high RPMs, and heavy boost without compromising reliability. If you're pushing for 1000 horsepower, these rods ensure your bottom end stays intact, giving you the confidence to run hard without hesitation.

Impressive Sealing Capabilities and Airflow Improvement

Sealing strength is another critical area where this engine outperforms stock. A fire-ringed cylinder head is machined for maximum head-to-block sealing, significantly reducing the risk of head gasket failure, one of the most common weak points in high-horsepower diesel builds. When paired with custom ARP 9/16” head studs, this setup locks everything down, keeping the head secure even under extreme cylinder pressures. Whether you're running compounds or a large single turbo, this upgrade ensures your engine can handle the boost without failure. Airflow is just as important as durability in a performance build, and this long block delivers in that department as well. The Stage 1 High-Performance Cylinder Head is 5-axis CNC-ported for improved efficiency, featuring oversized intake and exhaust valve seats and heavy-duty bronze valve guides. With better airflow, the engine breathes easier, reducing turbo lag, improving throttle response, and lowering exhaust gas temperatures. 

Fits: 2013, 2014, 2015, 2016, 2017, 2018 Dodge RAM/RAM 6.7L Cummins

Core Charge: Refundable Core Charge of $3000 applies.

Note: Not for sale on licensed California vehicles