Callies - U16200
Connecting Rod - Ultra - I Beam - 6.385 in Long - Bushed - 7/16 in Cap Screws - ARPL19 Bolt - Forged - Steel - Big Block Chevy - Set of 8
BB Ultra Rods: H-Beam.?Length 6.385", Journal 2.200". Made entirely in the USA. Produced from specially formulated TimkenSteel 4330V steel. Only AMS 642 bronze alloy is used within the wrist pin housing bore. Typical weight 800g.
Ultra connecting rods are made entirely in the U.S.A. Every Ultra connecting rod is produced from specially formulated Timken 4330V steel. This material is then precision forged in Michigan and fully machined in our Fostoria, Ohio facility. Ultra connecting rods are fastened by high alloy cap screws made specifically for severe duty service by ARP Inc. To eliminate deformation and extrusion only AMS 642 bronze alloy is used within the wrist pin housing bore.
