Carrillo connecting rods for the Mazda MZR 2.3 are Pro-H series WMC bolt rods that provide a direct replacement for 2.3 applications. Specified with 3/8 WMC bolts, these rods serve as the durable hardware for engines requiring that rod style. They’re intended for engine builds that call for the Carrillo Pro-H rod in the Mazda MZR 2.3 configuration without implying unlisted changes or modifications.
Carrillo Mazda MZR 2.3 Pro-H 3/8 WMC Bolt Connecting Rods