6.7 Common Rail Cummins Precision Plus Reman Long Block

Our 6.7 Common Rail Cummins Precision Plus Reman Long Blocks come fully assembled, including the oil pan and front timing cover. We use only the best products from our years of experience in the high-performance diesel industry.

Key Features:

• Comprehensive Inspection: Disassembled, crack checked, inspected, and all threaded holes tapped, blasted, and cleaned before machining.
• Precision Machining: CNC blueprinted, bored, honed, and deck surfaced. Each crank is checked for straightness and size and repaired as needed.
• Thorough Cleaning: Blocks are cleaned and inspected to double-check our machining processes. We measure all bearing clearances, piston-to-wall clearance, piston protrusion, deck, and hone surface. All pistons and rods are double-checked for proper spec and ring gaps corrected as needed.
• Controlled Assembly: Assembled in a clean room by skilled technicians, ensuring top quality.
• High-Performance Cylinder Heads: Disassembled, crack-checked, with stock seats replaced by extra-large heavy-duty valve seats. CNC high-performance valve job performed with Newen seat and guide machine. Meticulously cleaned, inspected, assembled, and pressure-checked.

Quality Control:

• Multiple Inspections: Each part is inspected multiple times by different team members to ensure the best quality control.
• Pre-lubed and Painted: Engines are painted black and shipped pre-lubed with break-in oil and filter included.

Availability:

• Compatibility: Available for all common rail models from 2007.5-2018

Build Includes:

• New Pistons
• New head, main, and rod bolts
• New main and rod bearings
• D&J Precision Plus Reman cylinder head
• Reconditioned stock cam
• All new gaskets
• New tappets
• New oil cooler
• New oil pump
• New crankshaft seals
• New oil pan installed
• Rear main seal installed
• Reconditioned OEM connecting rods
• Front cover installed
• Pre-lubed with break-in oil and filter included
• Pressure-checked cooling system and crankcase to ensure no leaks on installation

Precision Plus Reman Cylinder Head Includes:

• All new HD bronze valve guides installed
• Heavy-duty extra-large intake and exhaust seats installed
• Thread-in soft plugs under the valve cover
• High-performance CNC valve job performed
• New valve seals installed
• New stock springs
• New soft plugs
• Resurfaced

Optional Upgrades:

• D&J Billet Freeze Plugs
• D&J Billet Timing Cover
• D&J Billet Valve Cover
• ARP 625 head stud upgrade
• HD valve spring upgrade
• HD push rod upgrade

Shipping and Core Charges:

• Core Charge: $3000.00 (Cores can be sent in beforehand to eliminate this charge*)
• Shipping: Varies for each purchase.

Cores must include usable block, crank, cylinder head, oil pan and bolts, pickup tube, timing gear housing, timing gear housing cover and bolts, rear seal housing and bolts, piston cooling nozzles, and bolts. If there are issues with any of the parts, you will not be charged the full core amount, only the amount needed to replace the bad part. Our core charge is based on re-manufactured parts.

Upgrade to our D&J Precision Machine 6.7 Common Rail Cummins Precision Plus Reman Long Block for unparalleled performance and reliability for your Cummins engine.