Our Bubble Top Aluminum Engine Case fits Type 1, 2 and 3 applications as it a universal style case. The universal case has mounting points for a rear cross bar and it has a Type 3 dipstick hole which will need to be blocked off for applications not using it. The case is bored out for 90.5 or 92mm pistons & cylinders and is clearanced for up to 86mm crankshafts. The all new engine case includes a large style oil pick up tube and is suitable for 1776, 1904, 2007, 2110, 2161, or 2213cc with 90.5 pistons or 1835, 1968, 2074, 2180, 2234 or 2287cc engine builds with 92mm pistons. A stock metal cam plug can be used as can aluminum o-ring versions. Bubble Top engine cases have a raised roof and a radius design to add stregth and clearance for larger cranks. The bellhousing of the case is also filled in behind cylinder #3 for additional strength over stock. The aluminum engine case is drilled and tapped for a full flow oil system and includes plugs for capping them off as needed & the main oil galley is tapped for easy cleaning. 6 shuffle pins are added on the main bearing saddles for a tighter fit and more durability and the case has 10mm case savers installed for the cylinder head studs.