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2001-2016 Duramax Rotating Assembly Package Crank Connecting Rods and Pistons

2001-2016 Duramax Rotating Assembly Package Crank Connecting Rods and Pistons

We have put together a full package to get you 1000hp capable rotating assembly. It's the same exact components going into my 2016 Duramax LML. Usually we have seen when a Duramax engine breaks a crank or cracks a piston, it's beneficial to upgrade the problematic parts in the Duramax bottom end. This package consists of the following items and will work for all 2001-2016 Duramax 6.6L engines.


- Callies Durastar Crankshaft

  • Deep DuraCase ™ nitride treatment that is durability and wear enhancing
  • Large True Form fillet radii in all journals
  • Keyed Shear Proof timing gear fit
  • Drilled rod journals for reduced inertia and ease of balance
  • Stock 3.898” stroke with OEM journal diameters and width
  • Machined from 4340, through hardened steel
  • Dual keyed damper fit
  • Conservatively rated for 800hp @ 800 ft / lb torque
  • Will accept OEM post and flange bolts
  • Machined to accept OEM flywheels / flexplates
  • All journals are polished to a 6Ra or finer finish
  • Main bearing oil holes are machined with lead-ins for enhanced cold start oil flow to rod journals
  • GM timing gears are available



  • 4340 Forged H-Beam connecting rods
  • ARP L19 Fasteners
  • CC: 6.418 in.
  • Rod Journal: 2.480
  • Pin Size: 34.5mm (1.359 in.)
  • Typical Weight: 1182g.


- Mahle Race Cast Pistons with your choice of standard bore or .020 over.

  • Mahle x8 Pistons
  • Mahle Piston Rings Set
  • Circlips
  • Wrist Pins



Cast Aluminum Construction
Steel Top Ring Land
Dry Film Lubricated Skirts

Compression Ratio in relation to Bore w/o reliefs: 

STD Bore 16.7CR (#930036055)
.020" Over 16.8CR (#930036075)


We also carry supporting engine modifactions,


ATI Dampers - Click HERE

Fluidampr - Click HERE

Mahle Lower Gasket Kit - Click HERE

Mahle Upper Gasket Kit - Click HERE

ARP Head Studs - Click HERE

Head Gasket / Head Stud / Upper Gasket Combo - Click HERE

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