The next generation 4.800" Billet Hemi Top End Package is here. We've been pushing the boundaries of the 4.800" Hemi to get a whole new level of horsepower. This combo includes the all new Billet X2 Cylinder Heads, X2 Billet Manifold and X2 Billet Rocker Covers.
Utilizing the same valve train as our record setting MACH I cylinder heads, the package is available as an Outlaw Promod Combo and a NHRA Turbo Legal Cylinder Head. Available for a Screw/Roots Supercharger and Turbo/Procharger Combinations.