Ford Performance M-6010-BOSS50 Modular Boss Engine Block

Boss 5.0L Block Is a 4.6L Deck Height - 94mm Cylinder Bore - Cast Iron - 4 Bolt Main Siamese 94mm Bore 17mm Main Web Minimal Thickness 4 Bolt Main w/Interference Fit Nodular Iron Machined Caps Increased Main Web Window Size For Improved Crankcase Breathing Head Gaskets for 3V Apps M-6067-3V50 For Install In 05-10 Mustangs Use Mount Adapter M-6031-BOSS50 Ford Performance Parts - Modular Boss Engine Block P/N M-6010-BOSS50: The Boss 5.0 block is a 4.6L deck height, 94mm cylinder bore cast iron block. The block uses a proprietary iron mix to yield the strongest possible casting strength with the least porosity and greatest consistency. NOTE: The Boss 5.0L modular block does not have a finish milled head deck surface and the cylinder bores are rough honed. WARNING: This part is designed and intended for competition use only. It should not be installed on a vehicle that is driven on public roads and highways. Installation of this art on a vehicle driven on public roads and highways is likely to violate U.S. and Canadian laws and regulations relating to motor vehicle emissions.