Current Lead Times: In Stock Engines Ship Same or Next Day - Out of Stock: 1-3 Weeks on Most Long Block Engines; 3-5 Days on Heads – *call us for more exact lead times for your specific build 

6.7L Long Block Workhorse 2019-2024 Cummins Dodge Diesel Engine


CHOATE 6.7L Long Block Workhorse Engine 2007.5-2018 – Dodge Cummins Diesel Engine Manufacturer: CHOATE Engineering Performance CHOATE Part Number: CEP67CLW

The 2019 and up years are known as the dark ages for Cummins owners. They have been plagued with so many issues from Cummins that it has led us to completely revamp this problematic platform. After much R and D we have decided that it was best for the customer to start from scratch. The blocks were lightened up roughly 75 lbs lighter. The material removed was taken from the most critical parts of the block. This is all shown in the podcast link at the bottom of the page (full video). Cass spends over an hour talking about this engine, and just what caused the failures. Most talk about the camshafts that fail. But there are much bigger problems. Choate Engineering Performance restores the reliability you have come to know and expect from the beloved Cummins platfrom. Click here to jump to the part about the 2019.


This 6.7L Long Block Workhorse Dodge Cummins Diesel Engine Includes:

  • Coated, Flycut and Delipped pistons
  • O-ring heads
  • Chromoly Pushrods
  • Stage 2 Performance Camshaft
  • Choate Billet Freeze Plugs
  • Welded Cam Gear
  • Oversized New Upgraded Valve Seats
  • Threaded Soft Plugs in Cylinder Head
  • Head Studs
  • OE Oil Pump
  • 6.7L Cummins Long Block Workhorse Engine Cummins Diesel
  • CHOATE Engineering Performance
  • CHOATE Part Number: CEP67CLW Fitment : Fits 2007.5-2018 Dodge/Ram Diesel Engine Equipped VehiclesThis 6.7L Long Block Workhorse Includes:
    • Coated, Flycut, and Delipped pistons *(See Video)

    • O-ring heads *(See Video)

    • Chromoly Pushrods
    • Stage 2 Camshaft *(See Video)

    • Our Built-in-house Heads
    • New Oversized Seats  *(See Video)

    • All New Iron Matrix Valve Guides
    • Install New Valve Seals
    • Test Spring Tension
    • Threaded Soft Plugs
    • Head Studs
    • Full CNC blue print machining, (bore, deck, hone and line honed). The Cylinder bores are blue print bored to a true 90 degrees from the crankshaft center line, prior to being diamond honed to within .0002 inch for precise piston to cylinder bore clearances. *(See Video)

      The main housing is honed to precisely align the crankshaft in the engine block. The Cylinder walls are bored 90 degrees over the crankshaft center line. The piston diameter measured to the nearest .0001 inch matched to cylinder bores. *(See Video)

      The Cylinder block for this Cummins is surfaced to a finish of 30 Ra or lower, which meets the factory specification in both flatness and smoothness for the block to head sealing surface. This is mandatory for proper sealing of a MLS Gasket. *(See Video)


    • Balanced and Matched Rotational Assembly


    • New upgraded Pistons .020- .040 inch over – New pistons, rings, Pin retainers weight matched prior to crank balancing
    • New OE tappets
    • Crankshaft – Balanced with the Rotational assembly checked for run-out inspected for fatigue.
    • Crankshaft is Polished and ground to .0005 concentricity or less
    • Stage 2 Camshaft
    • New Rod bearings
    • New Main Bearings
    • New Cam Bearing
    • Install Rear Main Seal
    • Install New Rear Cover Gasket
    • Install Lower Oil Pan Gaskets
    • Install Pickup Tube O-ring
    • Rear Cover Installed

    CHOATE Engineering Performance Crate Engine Features:

    700 HP rated. Designed with the working man in mind. The perfect platform for those who do heavy hauling regularly. Fully balanced.

    Upgrades over the Daily Driver include but are not limited to:

    • O-Ringed Heads
    • Coated, Fly Cut and Delipped Pistons
    • Stage 2 Cam
    • Chromoly Pushrods
    • Welded Cam Gear

     So which engine is right for you? Check out this Q and A about the differences between the Workhorse and the Daily Driver.

    Common Issues With The Cummins 6.7L Block and Heads (and how we fix them)

    Check out this video with Cass. He explains the issues and the fixes of the Cummins platform. (And How we fix them.)

Cylinder Heads- While there aren’t as many issues with the bottom end of the Cummins, there are really BIG problems in the head department.

Valve seats fallout contacting the piston and cause catastrophic failure. We machine oversize valve seats within creased press fit area to remedy this issue.

Stamped gallery plugs in the heads blow out causing a mixture of oil and coolant, destroying the bearings. We thread the head and insert threaded plugs to make sure this issue never rears its ugly head.

Plus: Freeze plugs in the block blow out leaving you at best stranded on the side of the road, at worst, with a severely overheated engine in need of remanufacturing. Every new Choate Cummins engine comes standard with billet freeze plugs that are blow out proof using a tie bar bolting them into the side of the block.

  • ***Warning!***

    The Workhorse Platform is built for the working man. Made to haul heavy. This is a man’s engine. Made to tow big stuff. If you don’t have callouses on your hands, or have a man bun, do not buy this engine. The exhaust this engine generates will blow the skirt right off your effiminate body. If you are a lumber jack, or need something to haul your traveling act for grizzly bear wrestling, this engine is for you. Built by Men, Made for Chuck Norris. 



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