heck, the 1e, 2e, 2e-e, 4efe, 4efte, 5efe engines are so alike that my engine is a frankenstein of parts. running a 4efe block, 4efte crank, 2e-e rods (they are the same thickness as gen1 gt rods) 4efe head, 4efte cams. and im thrashing it hard without failure in the last 3 years