CARRILLO, Dodge/Cummins 6.4L RODS .080" LONGER THAN STOCK. 6cyl Cummins 6.4L WMC Bolt - 5.9L Crank in 6.7L Block 0.080" Longer (Set of 6)Billet Rods

Carrillo Connecting rods were founded by Fred Carrillo in 1963. Fred approached the challenges of manufacturing with the idea of no compromise. He knew the never ending quest for speed would require the same desire in component manufacturing. This Carrillo philosophy is as evident today as it was at Carrillo’s conception in 1963.

Quality and pride go hand-in-hand at CP-Carrillo. Manufacturing a CP-Carrillo rod is much more than cutting a forging, meeting production goals and shipping deadlines. The design of connecting rods has evolved into a collaboration of skilled specialists. Every connecting rod is a symphony of precision: material specialist, forging precision, production craftsman, design engineers and engine specialists each contribute know-how and artistry.

Feedback from our customers helps us continuously improve our products. We find that the close relationship between customer, engineering and manufacturing yields the most effective rod design -while improving accuracy and service- an added value you’ll discover during your engine build. –CP-Carrillo’s dimensional integrity is comparable to none.

CP-Carrillo engineers continually refine our connecting rod designs to obtain that elusive goal –perfection in performance.

When you buy a CP-Carrillo connecting rod we strive to put you in the winner’s circle; you get our commitment to quality and performance, before, during and after the sale!

CP-Carrillo diesel connecting rods are fully machined from a proprietary 4330m alloy forging for strength and durability and are available with 2 types of bolts: The standard WMC-H7 (H11) bolt with a UTS of 220ksi and the upgraded CARR-S7 (MP35N) bolt with a UTS of 285ksi. The CARR upgraded bolt is a good choice if planning on revving the engine higher than 6000rpm. All bolts are manufactured with Asymmetrical threads, each thread has a slightly different design than the previous giving the bolts an evenly distributed thread engagement. This helps increasing the clamp load and fatigue life of the fastener. Includes Mahle steel bushing for added durability and optional Cap Relief is available to aid in oil evacuation for those that run higher loads and RPM’s lock up bearings.

6.4L Displacement

A more recent development by diesel performance enthusiasts, the 6.4L displacement Cummins is created by the combination of a 5.9L Cummins crank in a 6.7L block. With longer connecting rods to compensate, this creates a displacement of 6.4L. This unique combination offers distinct advantages over both the standard 5.9L and 6.7L motors. Because it is essentially a “destroked” 6.7L, the 6.4L combo is capable of higher rpm which results in a higher hp/lower tq figures, which is especially appealing to racers who want to somewhat do away with the parts-shattering low end torque of the 6.7L engine. Accompanying this, the 6.4L has a larger displacement than the 5.9L, making it easier to spool larger turbo(s) to produce more power. In a nutshell, the 6.4L combination is the best of both worlds for the diesel drag racing crowd looking to make monster power in their trucks. Because of it’s increasing popularity, CP-Carillo has thrown their hat into the game by offering 6.4L kits for the Cummins trucks with connecting rods that are the correct length and matching pistons of varying bore sizes. These 6.4L kits make it easier on the engine builder to assemble the combination and CP-Carrillo’s legendary piston(s) and connecting rod(s) are sure to withstand whatever you can throw at them!