Introducing CP-Carrillo Engine Connecting Rods

Welcome to CP-Carrillo, your go-to destination for premium engine connecting rods. But let’s be clear, crafting a CP-Carrillo engine connecting rod is so much more than just cutting a forging and hitting production targets. It’s a journey that brings together a team of dedicated specialists who pour their expertise and passion into every single rod we make.

A Symphony of Precision

Each CP-Carrillo connecting rod is truly a masterpiece, combining the talents of material specialists, precision forgers, skilled production craftsmen, innovative design engineers, and experienced engine specialists. Our engineers are always working to refine our designs, aiming for that ever-elusive perfection in performance. Proudly made in the USA, each rod starts with oversized proprietary steel forgings that ensure optimal grain flow and the removal of any surface inclusions. This commitment to quality means our rods are reliable, from the moment they’re crafted to their toughest tests on the racetrack.

What Makes Carrilloy Special?

At CP-Carrillo, we use a unique steel alloy called Carrilloy to manufacture our connecting rods. This special blend of chrome, nickel, moly, and vanadium meets all VAR (vacuum arc re-melt ASTM) standards. Think of Carrilloy as a refined version of an existing SAE specification, where we’ve tightened the acceptable attributes during manufacturing. We validate the heat treatment with both our suppliers and independent metallurgists to ensure we achieve the desired physical and chemical properties of the steel.

The Importance of Fasteners

When it comes to high-performance connecting rods, the fastener system is arguably the most crucial component. That's why we emphasize the importance of proper installation and lubrication. With nearly fifty years of experience, CP-Carrillo has become synonymous with the most trusted fasteners in the industry. Our designs are based on known yield loads, and we recommend a stretch value of 80% of the yield load as calculated in a tension-torque diagram.

While torque is commonly used for tightening fasteners, we’ve found that it can be influenced by many factors—like lubrication, thread condition, and dimensional integrity. That’s why we prefer the “stretch” method. This approach minimizes variability and helps ensure that the fastener achieves the proper preload, leading to consistent performance in every application.

Key Features

• Exceptional strength-to-weight ratios
• Custom-designed features tailored to your needs
• 100% traceability with multi-step final inspection

Specifications

• Center to Center (in): 5.728
• Center to Center (mm): 145.5
• Style: PRO-H
• Bolt Size: 0.375
• Bolt Type: CARR
• Pin Width (in): 0.945
• Pin Width (mm): 24
• Big Width (in): 0.941
• Big Width (mm): 24
• Big Bore (in): 2.0522
• Big Bore (mm): 52.125
• Pin Size: 23mm
• Total/Rotate/Recip (gr)*: 553 / 386 / 167
• FN: S
• Cyl: 4
• QTY: Set of 4

Important Notes

• Images are for marketing purposes only. Actual product may vary.

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