Duramax Connecting Rods

Molnar Technologies

Molnar Technologies H Beam Duramax rods for the Chevy, GM, GMC 6.6 Duramax diesel engine are machined from billet 4340 steel, and then heat treated to provide improved strength. To make the rods even stronger, they are shot peened to which also increases fatigue life. All Molnar Duramax connecting rods are fitted with highly durable premium bronze bushings for use with floating pin type pistons. Each rod set for the Duramax engines includes ARP fasteners, lubricant, installation instructions and they can be used as a direct high performance replacement for the OEM stock rods.

All Molnar Duramax performance parts connecting rods are finished in the United States at the Molnar Technologies shop in Michigan. Critical rod dimensions are are held to very precise tolerances of +/- .0001 of an inch, which is the tightest tolerance you will find in the performance and racing aftermarket. These rods are an excellent upgrade component for high performance and racing Duramax eight cylinder engines.

H Beam Chevy Duramax Rods

Duramax Connecting Rod

Molnar Duramax Connecting Rod Specs

  • Length Length of the connecting rod, as measured center to center, in inches.
  • Notes Additional information about specific applications
  • Wt Weight in grams, of one complete connecting rod assembly
  • Bolt Size 7/16 diameter Rods come with ARP2000 fasteners installed
  • Jrnl Crank rod journal diameter
  • Pin Piston pin diameter, in inches or millimeters
  • BE Width of the crankshaft end of one rod
  • PE Width of the piston end of one rod
  • Part Number Molnar Technologies Connect Rod set part number
  • Price The price shown is for a complete set of rods for the engine.
Price Length Notes Wt Jrnl Pin BE PE

GM, Chevy, GMC Duramax Diesel


$2674.04 $2309.57
6.418 6.6 Duramax V8
Stock Duramax connecting rod length
1150 stock 2.476 1.359 1.120 1.540


If you did not find the Chevy Duramax engine rods you need, please contact us for assistance. New models are constantly in development so we may have diesel engine piston rods available that have not been added to this site yet. Molnar Technologies is constantly working to bring the best Duramax connecting rods to the performance parts aftermarket at affordable prices.

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