Callies Ultra Enforcer I-Beam Connecting Rods for LS Engines Ignition Coils Change your mind later

Change your mind later

reduce stretching and prevent slippage compared to traditional 6 Rib designs

and compressor pulley covers

for accessories such as

Callies Ultra Enforcer I-Beam Connecting Rods for LS Engines Ignition Coils Change your mind laterAt Borowski Race Engines, we use Callies Ultra rods for a lot of our boosted LS engine builds. Why? Because they survive where others don't. Callies developed the Ultra connecting rod with the design goal of an uncompromised strength to weight ratio. Every Ultra connecting rod is produced from specially formulated Timken Steel 4330 and precision forged for uniform grain flow and consistency. Many geometric nuances are incorporated into the design of