well as far as im aware toyota never made a 4efhe, they did a 5efhe which was in the sera and cynos which was a 1.5 version of the 4efe, with slightly uprated cams, higher compression, a 4efte inlet mani and throttle body, and a 4-2 manifold with a 2-1 downpipe. this was a 108 bhp engine. i attempted to fit this engine into my car earlier this year, and found out that it would need rewiring due to the idle and distributor set ups, if you really wanna go for a n/a conversion with little hassle go for a 5efe. it is basically a longer stroke 4efe engine and it uses basically the same electrical