Ultra connecting rods are made entirely in the U.S.A. Every Ultra connecting rod is produced from specially formulated TimkenSteel 4330V steel. This material is then precision forged in Michigan and fully machined in our Fostoria, Ohio facility.
Custom ARP 7/16 18M Connecting Rod Bolts
Available in 150,153,156mm Lengths for 4G63/4G64 engines.
Callies Performance Ultra I-Beam Connecting Rods
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