Rebuilding a Ford or Lincoln truck with a 4.6L or 5.4L V8 engine? This kit is a great starting point. It includes the piston rings and both the rod bearings and main bearings you'll need for a standard bore engine (bore diameter is 90.20mm). The piston rings are the standard widths: 1.5mm, 1.5mm, and 3.0mm. This kit fits a ton of vehicles from 1996 to 2016, including the Ford F-150, F-250, and Lincoln models, but it's SUPER important to check your engine's VIN code. It needs to be for the 4.6L (VIN code '6') or the 5.4L (VIN codes 'L', 'Z', 'M', '3', or 'X'). The 8th character of your VIN tells you the engine code. This is a critical parts kit for an engine overhaul to restore compression and oil pressure. If you're doing a rebuild, having matching, quality rings and bearings is essential for performance and longevity. Make sure this matches your engine specs before you buy.