Get a jump start on building your new Mustang engine with a fully assembled 1979-93 Mustang short block. We have Ford Racing short blocks in 302 or 351 as well as the famous Boss 302 short blocks and Aluminator short blocks. These 1979-93 Mustang short blocks are fully machined and assembled with crank, rods, pistons, bearings, etc. Uou just need to bolt on heads and accessories etc.