351w stroked to 408 nothin but serious money with the fe's 500 hp/500ft torque with a mild build. dress the top to look the same, dart blocked W stroked to 427, cobra top. plenty of room in the bay. check the # whats original if thats the way you want to go no 352, 360 390 money cant fix those. 460 I always did like those. drop them in early bronco's for mud slingers.