KD Customs Nautilus Long Block, 2007.5-2018 6.7L Cummins

KD Customs Nautilus Long Block For 2007.5-2018 6.7L Cummins. This long block was designed and developed to offer our customers a budget friendly option that does not sacrifice quality, and surpass a factory stock replacement engine.

Can we build you a 2,500HP+ capable long block? Absolutely, HOWEVER; We understand that not everyone wants a race engine, they want a reliable, fair cost engine to install in their work truck and/or daily driver.

If you want to see the difference, feel free to call us and stop in for a tour. We will show and explain our entire machining and assembly process.
We recommend testing your injectors to confirm proper operation, we offer this service for $50 each on our Bosch EPS205 Machine


Build Process Features:

➡ Clean, Strip & Oven Bake/Blast Engine Block Assembly To Raw Casting - Perform Inspection & Measurement For Component Sizing
➡ Magnaflux Block & Spraywash | Magnaflux Crankshaft
➡ Deck Block Surface & Oil Pan Rail + Tap Oil Galleys
➡ Bore & Deck Plate Hone Cylinders Utilizing Cutting Edge Rottler CNC Hone
➡ Align Hone Mains, Check Clearance & Final Wash Engine Block
➡ Polish Crankshaft & Camshaft | Measure Main Clearance
➡ Check Rod Clearance
➡ Fit Rings/Pistons & Assembly, Check Ring Gap
➡ Build Long Block Engine, Pre-Lube & Perform Final QC Check | Cap Open Ports, Band To Pallet & Prepare For Pickup Or Shipping
➡ Cylinder Finish Report - TraceBoss+ Printout Included

Parts List In Long Block Include:

➡ New Block Freeze Plugs & Updated Thread-In Oil Galley Plugs
➡ New Pistons, Wrist Pins, Clips & Ring Package
➡ New Piston Cooling Nozzles & Banjo Bolts
➡ Remanufactured Connecting Rods
➡ New Camshaft Bearing(s)
➡ New Rod Bearings
➡ New Main Bearings
➡ New Rod Bolts
➡ New Main Bolts & Alignment Dowels
➡ Re-Manufactured Cummins Camshaft
➡ New Tappets
➡ Genuine Cummins Reman Crankshaft & Engine Block Assembly
➡ Oil Filter Housing With New Pressure Gauge & Internals
➡ New Engine Oil Cooler, Oil Filter & Mechanical Gauge
➡ New Front & Rear Main Seals
➡ New Engine Oil Pump
➡ New Oil Pan & Pickup Tube Gasket
➡ Re-Manufactured Oil Suction Tube, Rear Main Seal Housing, Front Timing Gear Housing
➡ Professional Paint Job
➡ Remanufactured Cylinder Head With New Nitride Coated Valves, New Guides OR Liners, New Valve Springs, Thread In Freeze Plugs & HD Oversize Valve Seats - Seats Machined On Our Newen Contour™
➡ New Cylinder Head Gasket
➡ New Head Bolts With Option To Upgrade To Head Studs With Machined Rocker Box
➡ New Oil Filter, Break-In Oil Included
➡ Other Necessary Genuine Gaskets & Seals

2-Year Unlimited Mileage Parts And Workmanship Warranty Against Manufacture Defects

Delivery REQUIRED To Be A Commercial Address Or Additional Freight Charges May Apply - Core Criteria And Break-In Information Attached In Instruction Tab

Core Charge Applied Up Front Upon Order, Refunded Upon Exchange Or Return And Inspection

Fun Fact: Why did we name our long block "nautilus"? The USS nautilus was a revolutionary and futuristic vessel; regarded ahead of it's time. Inspiring innovation and incredible endurance.