Description
CP-Carrillo DMTF6620S is a matched set of 8 Pro-H connecting rods machined from a proprietary 4330M alloy forging, with 7/16 in. CARR multiphase (MP35N, 285 ksi UTS) bolts and a Mahle steel pin bushing with cap relief, per the current CP-Carrillo catalog. Sets are weight-matched for engine builds that exceed the strength of the factory rods.
Fits: 2001-2010 6.6L LB7/LLY/LBZ/LMM Duramax hybrid builds using CP-Carrillo DHR70-series hybrid pistons with a 1.156 in. pin; does not fit OEM pistons.
Specifications (CP-Carrillo catalog)
- Center-to-center length: 6.620 in.
- Beam style: Pro-H
- Rod bolts: 7/16 in. CARR multiphase (MP35N, 285 ksi UTS)
- Big-end bore: 2.6372 in.
- Big-end width: 1.119 in.
- Pin-end width: 1.540 tapered in.
- Piston pin diameter: 1.1560 in.
- Pin end: Tapered, for CP-Carrillo hybrid pistons (not OEM)
- Quantity: Set of 8
- Catalog rod mass (total each): 1180 g
What's Included
- 8 connecting rods with caps
- 16 installed 7/16 in. rod bolts (CARR)
Not Included / Required
- Pistons, piston pins, piston rings and rod bearings are not included.
- Requires matching CP-Carrillo hybrid pistons; will not accept OEM pistons.
- Professional engine-builder installation: verify bearing and wrist-pin clearances and balance the rotating assembly to the catalog rotating/reciprocating weights.
- Tighten rod bolts by the stretch method (preferred) or torque-angle with lubricant, per the CP-Carrillo steel bolt instruction sheet.
Sources: CP-Carrillo diesel rod catalog page 67; CP-Carrillo steel bolt instruction sheet (PDF).
