I've heard it's like a 1% chance to find one not drilled for a pilot bearing, but even if it's not, it's not too difficult to remove the crank when the engine's on a stand, you should be replacing the water/oil pump and rear main seal anyways.

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