Performance Series Common Rail Long Block Crate Engine

Features:

• Fits 2007.5–2012 6.7L Cummins applications
• Rated for up to 1200 horsepower
• D&J X-beam billet connecting rods
• Stage 2 250 CFM performance cylinder head
• Fire rings cut into head and block
• Includes ARP 9/16" head and main studs
• Balanced, blueprinted, and file-fit rings
• 5-axis CNC ported intake and exhaust runners
• High-performance cast camshaft included
• Painted to your spec with break-in oil
• Machined rocker box and pedestals

Serious Power Starts with the Right Foundation

If you’re chasing big horsepower with your 2007.5-2012 6.7L Cummins, the D&J Performance Series Long Block is the kind of engine that can handle just about anything you throw at it. Built for high-output builds and capable of supporting up to 1200 horsepower, this long block comes fully assembled from oil pan to rocker box using top-tier components throughout. It features D&J’s X-beam billet rods, a performance cam, and a CNC-machined rocker box and pedestals for precision fitment. Every block is crack-checked, blasted, cleaned, and then CNC machined for proper clearances and true surfaces. The bottom end is fitted with ARP 9/16" main and head studs, paired with a heavy-duty girdle to keep everything locked down under heavy load. Whether you’re building a sled puller, drag truck, or just want a street monster with room to grow, this engine gives you a rock-solid platform to build on.

Hand-Built Cylinder Head and Track-Proven Durability

One of the key upgrades in this build is the D&J Stage 2 High-Performance Cylinder Head. Flowing 250 CFM, it’s been 5-axis CNC ported and fitted with oversized seats, bronze valve guides, titanium retainers, and 115-pound valve springs to handle serious boost and rpm. It’s fire-ringed for maximum sealing, and the head and block are both machined to accept the custom ARP hardware. The engine comes blueprinted and balanced, with ring gaps set by hand and all oil clearances verified before assembly. You’ll also find new OEM components where it counts, including the oil pump, oil cooler, tappets, and crankshaft seals. It’s pre-lubed, ready to run break-in oil, and even includes billet soft plugs for extra durability. Whether you’re upgrading from a failed motor or building for competition, this crate engine is built to take abuse and keep coming back for more.

Fits: 2007.5, 2008, 2009, 2010, 2011, 2012 Dodge RAM 6.7L Cummins

Build Includes:

• D&J X-Beam Stock Length Billet Rods
• OEM Cummins Pistons
• D&J HD Girdle and ARP 9/16" Main Studs
• D&J ARP 9/16" Head Studs torqued to 175 ft/lbs
• Fire Ring cut into cylinder head and block
• D&J HD 7/16" Pushrods
• D&J 250 CFM Stage 2 High-Performance Cylinder Head
• Performance Cast Cam
• New OEM Tappets
• New OEM Oil Cooler
• New OEM Oil Cooler Housing
• New OEM Oil Pump
• New Crankshaft Seals
• Billet soft plugs (front, side, and rear)
• Machined rocker box
• Machined rocker pedestals

250 CFM Stage 2 High-Performance Cylinder Head Includes:

• All new HD bronze valve guides installed
• Heavy-duty extra-large intake and exhaust seats installed
• Industry-leading 5-axis CNC port job
• Billet replacement style intake
• Thread-in soft plugs under the valve cover
• High-performance CNC valve job performed
• New OEM valve seals installed
• New 115# springs installed
• New titanium retainers installed