On all Manley connecting rods, sets are weight matched to ± 1.5 grams, big and small end bores are final honed to a tolerance of ± .0002", critical bend and twist attributes are held to a minimum, and exacting attention is paid to every detail by their final inspection department; thus rendering a finished product that is second to none.
Turbo Tuff
Manley Pro Series Turbo Tuff connecting rods are forged from aircraft quality 4340 vacuum degassed material. Each rod is fully machined in the Manley Lakewood, NJ factory to the highest standards.
Manley’s signature "Turbo Tuff" design combines the appropriate weight and rugged strength for ultimate horsepower applications.
Each rod is shot peened after machining and magnafluxed. Bores are round and without taper. Bend and twist is tightly controlled. Cap fasteners are 3/8" ARP 2000 cap screws. Optional 625+ upgrade available.