quick view Add to Cart COMP Cams COMP Cams Shaft Rkr BBC Bdx B-Dke/Drt B - 1513CPG MSRP: $2,877.99 With a 2024 aluminum rocker and 8620 hardened steel shaft, this shaft-mount rocker system adds stability to the engine which frees up horsepower. This system features 1.7 ratio rockers for BBC w/ 18 degree Brodix Big Duke/Dart Big Chief. Add to Cart Add to Wish List Add to My Wish List Create New Wish List Compare