5SFE is the only bolt-on/drop-in engine for Gen 3 and Gen 4 Camrys. Anything else will require a full swap. JDM 4SFE and 3SGE engines (which were in their Gen 3 and 4 (including the A-Spec Gen 4 imported over there)) equivalents will drop in, but requiring ecu and software/wiring upgrades.