Features: - 500 HP rated
- Welded crank gear
- Fully balanced
- Perfect for daily driving
- Great for consumer level towing
- Features improvements over the OE 5.9L
- 5 Year / 100,000 Miles
Dependable Spirited Daily Driver
The 5.9L Cummins engine is highly regarded for powering tough and reliable trucks. Choate Engineering's 5.9L Daily Driver Long Block not only continues this reputation but also enhances it. Designed for spirited daily driving and consumer-level towing, it features upgrades like head studs, valve seats, torque plate honing, and a fully balanced engine. With these improvements, Choate Engineering's 5.9L Daily Driver Long Block represents the true potential of the 5.9L engine.
Built to Maximize Durability and Reliability
Choate Engineering meticulously designs this heavy-duty Long Block engine to provide a significant improvement in reliability and durability compared to the OE 5.9L. Utilizing CNC blueprint machining, this engine showcases remarkable precision engineering. Choate Engineering employs CNC blueprinting to precisely align the crankshaft with the engine block, ensuring smooth and frictionless operation. They bore the block back to the crankshaft centerline and hone it to an RA13 finish to further minimize friction. The cylinder block is meticulously surfaced to an RA30 finish or lower, exceeding factory specifications for flatness and smoothness on the block-to-head sealing surface. Additionally, Choate Engineering includes a new rear main seal, new bed seals, a new rear cover gasket, a pickup tube gasket, and a rear cover. Choate's 5.9L Daily Driver Long Block is meticulously balanced and prepared to power your daily adventures with reliability and performance.
Furthermore, Choate Engineering addresses common issues with the OE 5.9L to ensure they do not occur with their 5.9L Daily Driver Long Block. In the OE 5.9L, valve seats may fallout, contacting the piston and causing catastrophic failure. To remedy this, Choate machines oversize valve seats with a creased press-fit area. Another prevalent issue is the blowout of stamped gallery plugs in the heads, leading to a mixture of oil and coolant and destroying bearings. Choate addresses this by threading the head and using threaded plugs in their 5.9L to prevent such occurrences. Additionally, freeze plugs in the OE block may blow out, potentially leaving the engine stranded on the roadside or, at worst, with severe overheating requiring remanufacturing. To mitigate this, Choate includes billet freeze plugs that are blowout-proof. It's evident that the 5.9L Daily Driver Long Block by Choate Engineering is a significant advancement over the already impressive OE 5.9L.
Fits: 2003-2004 Ram 5.9L Cummins
Build Features: - Connecting Rods, New Damper – Check both wrist pin and crank pin to rod clearances.
- New Upgraded Pistons .10 – .30 inch over – New pistons, rings, Pin retainers weight matched prior to crank balancing
- Crankshaft – Balanced with the Rotational assembly checked for run-out inspected for fatigue. Crankshaft is Polished and ground to .0005 concentricity or less
- New Rod, Main and Cam Bearings
- Camshaft – Polished and Inspected
- Install Rear Main Seal
- Install New Bed Seals
- Install New Rear Cover Gasket
- Install Upper and Lower Oil Pan gaskets
- Install Pickup Tube O-ring
- Rear Cover Installed
Warning: This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit
www.P65warnings.ca.govNote: $500 Shipping surcharge will be added at checkout