The Boss 5.0 block is a 4.6L deck height, 94mm cylinder bore cast iron block. Cast in Ford's Cleveland plant, it uses a proprietary iron mix to yield the strongest possible casting strength with least porosity and greatest consistency.
- Siamese 94mm Bore
- 17mm main web minimal thickness
- 4 Bolt Main with interference fit nodular iron machined caps
- Increased main web window size for less oil movement and greater power