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@ UniqueDiesel


Unique Diesel can blueprint build you a stock or performance 6.2 or 6.5 Diesel engine. Engine builds are based on your core provided engine. Outright engine builds are available as custom projects

These engines are installed in-house into your truck to ensure they're ready for the road and performance tuned.

Engine base options.

  • Very Precise Machining and Cleaning
  • Balanced Rotating Assembly, stock crankshaft
  • Bolt Girdle
  • Torque Plate bored and honed
  • Mahle Pistons or Sealed Power Pistons
  • Matched length connecting rods
  • New AMG Lifters
  • New Oil Cooler and Oil Filter bypass valves
  • Balanced Rocker Arm Assemblies, seldom checked by others!
  • Equal Length Push rods, yes, the factory pushrods vary!
  • Standard new timing chain components
  • New Brass freeze plugs
  • New Melling Oil Pump
  • New Clevite Main, Rod and cam Bearings
  • New Felpro Head Gaskets and Head Bolts
  • New Fel-Pro Front and Main Rear seals


  • Engine Additional Options.

  • Mahle .010 Destroked pistons
  • New AM General Cylinder 6.5TD Heads with Diamond precups.
  • New High-Volume Melling Oil Pump
  • Big Exhaust Valves (early 6.2L OEM modification)
  • Big Rod Bolt Modification Rods
  • Gear Drive timing set
  • Cylinder Head Porting
  • Different compression ratios to suit need
  • Different pre-combustion cup options to suit need in cylinder head
  • Fluiddampr balancer
  • Piston Oil Spray Cooling Modification to 6.2L Block


  • Engine base options.

  • Very Precise Machining and Cleaning
  • Balanced Rotating Assembly, stock crankshaft
  • Torque Plate bored and honed
  • New AM General Cylinder Heads with Diamond precups.
  • Bolt Girdle
  • Mahle Pistons
  • Matched length connecting rods
  • New AMG Lifters
  • New Oil Cooler and Oil Filter bypass valves
  • Balanced Rocker Arm Assemblies, seldom checked by others!
  • Equal Length Push rods, yes, the factory pushrods vary!
  • Standard new timing chain components
  • New Brass freeze plugs
  • New Melling Oil Pump, or HO Oil Pump if 506 block
  • New Clevite Main, Rod and cam Bearings
  • New Felpro Head Gaskets and Head Bolts
  • New Fel-Pro Front and Main Rear seals.


  • Engine Additional Options.

  • Splayed Main modified Block
  • Mahle .010 Destroked pistons
  • 17:1 - 19:1 Machined Pistons, either in-house topped or Kennnedy Diesel Pistons
  • Big Rod Bolt Modification Rods
  • Big Exhaust Valves (early 6.2L OEM modification)
  • Gear Drive timing set
  • Cylinder Head Porting
  • Scat 9000 Series Crankshaft Option
  • AMG Forged Crankshaft Option, a beautiful and strong addition
  • Different pre-combustion cup options to suit need in cylinder head
  • Fluiddampr balancer
  • Main studs to replace factory bolts in the center bolt holes. Req. Align Hone
  • Piston Oil Spray cooling addition to 599, 929, and 141 block castings


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