87-90 Pontiac 2.0L / 121 SOHC L4 8V "M" Turbo Rod bearings STD

Original Engine Specifications:Shell P/N: BB-279-P Number Of Bearings: 4 Shaft Diameter: 1.9280-1.9286" Housing Bore: 2.0472-2.0477" Wall Thickness: 0.0586-0.0589" Width: 0.759" Oil Clearance: 0.0008-0.0025". Please use the mentioned specs and attached image to verify engine fitment. Picture is of actual item. Any opened and used bearings will not be accepted for return.