High Performance connecting rods

High Performance connecting rods

K1 Technologies

K1 Technologies strive to bring their customers a high-quality connecting rod at an affordable price, while providing world-class customer service. 4340 steel is used to manufacture all of our connecting rods and crankshafts. We only use ARP fasteners, with the option of either 8740 or ARP 2000 material. Bearing bore tolerances are held to +/- 0.025 mm. Bronze bushings allow for a full-floating pin. Press-fit pins are available on some rod sizes. All of our crankshafts are made from 4340 material; core hardened for increased tensile strength and fatigue life and are 100% magna flux particle inspected. Bearing surfaces are polished and nitrided for wear resistance.

Before any finish work is done, our rods are 100% magna flux particle inspected. ARP bolts are installed and tightened to our exacting specifications prior to honing to insure accurate and repeatable bore geometry. All K1 Technologies connecting rods are honed in-house and sizes are held to some of the tightest accepted tolerances in the industry. Rods are weight-matched into sets and boxed, with the rotating, reciprocating and total weights noted for convenient use in the balancing process.


Celebrating our 50th anniversary, the name Carrillo is synonymous with connecting rods. Carrillo has won more races in virtually every format of motorsports than any rod manufacturer in the world. We carry a full line of stock replacement rods and specialize in custom applications. We focus on providing industry-leading products and performance while maintaining the highest level of customer service. Proudly made in USA.

CP-Carrillo offers over 500 shelf parts from the Sport Compact shelf line with a wide range of sizes for the most popular engine types. Every piston and rod is designed through extensive research and development with the support of some of the biggest names in motorsports. CP pistons are designed for oversized valves, high lift camshafts and available in a variety of compression ratios and bore sizes. Carrillo rods are a great compliment to the assembly and are available in PRO H, Pro A or Pro SA beams. All of our products represent the highest quality and are engineered for maximum power.

Standard Shelf Connecting Rod


  • Set balanced to + or – 1 gram
  • Most available in A, SA or H- Beam Style
  • Taper or Straight blade
  • Available with CARR or WMC fasteners
  • Laser Edged
  • 100% Magnaflux inspected
  • Fully Machined
  • USA Made

Sport Compact Custom Rods

We are able to custom make rods for a wide variety of engines not listed on our shelf parts. CP-Carrillo offers a wide variety of forgings made specifically for your application. Each rod is designed using sophisticated 3-D modeling software and manufactured with advanced techniques making your product the lightest and strongest combination on the market. Our products are rigorously evaluated with a state-of-the-art FEA program to ensure optimum strength and weight. See the custom section for more details