Fits Dodge 5.7/6.4L HEMI Engines w/ VVT. For more than 35 years, the COMP Cams?. While the COMP Performance Group?. as the absolute leader in valve train components. Check your applicable laws and manufacturer’s publication(s) and/or website(s) for manufacturer’s warranty, maintenance, safety, mounting and any regulatory compliance/noncompliance (including California CARB - California Air Resource Board) information.