Ultra H-beam connecting rods are machined from extremely clean Timken steel, from start to finish in our Ohio facility. Current offerings include popular SBC, LSx and BBC applications. These rods are fastened with purpose built 260Ksi Ultra bolts, produced by ARP, specifically for Callies. Design, material and craftsmanship combined to make the connecting rod capable of handling up to 1200hp. The Ultra H-beam connecting rod is designed not only to be affordable, but also provide racers with many years of service and durability.
Ultra H-Beam connecting rods are High Value American made engine components. Ultra H’s are forged from the same premium 4330 material as our entire Ultra line. Savings resulting from an easy to manufacture design are passed directly on to you. The Ultra H design ensures the geometry of these critical components will remain true under high tensile and compressive load situations.
Every Ultra H-Beam is made with the following components Bolts: 7/16” Ultra (modified H11) steel Pin Bushings: AMS 642 Aluminum-Silicon Bronze Alloy