This billet rocker box will be the piece that sets off your late 5.9 or 6.7 Cummins build! Made from high quality 6061 aluminum and integrated steel bosses to eliminate any possibility of stripping out threads. The rear of the rocker box is machined out to provide clearance for head studs.
Product Details
This billet rocker box will be the piece that sets off your late 5.9 or 6.7 Cummins build! Made from high quality 6061 aluminum and integrated steel bosses to eliminate any possibility of stripping out threads. The rear of the rocker box is machined out to provide clearance for head studs.
