Precision Machined from Billet Aluminum Blue Anodized Finish cam plate and oil pump Passage Plugs Removable for servicing cam plate and oil pump Independent Scavenge Sections for Flywheel Cavity and Cam Chest Debris Screens in both scavenge pickups Magnet in Cam Chest to help to stop debris from entering oil pump Increased Flow Capacity on both Feed and Scavenge side Adjustable Pressure Relief Valve is adjustable with unit installed in engine Quickee Pushrods S&S Premium Tappets Improved tappet stability in high lift and high rpm situations 475 is a bolt in 100hp cam Includes all gaskets, bearings, and hardware required for installation