Just buy a low mileage 5vzfe, swap over your wiring harness, oil pan and pickup, and install.
You can get any 5vzfe from 95.5 to 04. It would be best to swap your existing throttle body over to the new motor.


89 4Runner
3" BL, M/T locks, 33"bfg mt, bilstein, Kayline, tubebumper, toyotafiberglass panels
TBI: Elocker,3.4 w/ORS,b+b,S2Sstg2cams,arias pistons,P+P intake,TRDs/c,URDpullies+7th,downey headers,MAPECU2,WEGO WB, SupraMAF,walboro255,stg4clutch, EPaOo2 sim