Our new universal, dual relief Engine Case is the latest AS41 version and features a medium oil pick-up tube. For stock 1500-1600cc replacement, or can be modified for hi-performance and racing applications. Uses Metal Cam Plug 113-101-157C or Aluminum Cam Plug with O-Ring P/N 16-9524. Weighs approximately 25lbs and comes with 8mm steel case savers.