Ultra H-Beam Connecting Rods

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

Ultra H’s are available for most popular Chevy and Ford applications.

Ultra connecting rod line is expanding

Ultra connecting rods by Callies

For the Small Block Chevy and LS1 engine families

Ultra rods are now available for the Small Block and LSx Chevy engines.   Every Ultra connecting rod is machined from Extremely clean Timken steel that is produced to Callies exact requirement.    Ultra’s are available in a wide range of lengths and journal diameters.   These rods are fastened with a purpose built 260Ksi Ultra bolt.  Custom Age 625 cap screws by ARP are available for extremely demanding applications.  Ultra rods are designed to withstand 1800 HP plus applications.