Yes that is correct it is normal right hand thread ........ those crank bolts are really Frucken tight....
So what i would do is to spray it with you favoritre rust busting penetrating spray..Liquid wrench, PB Blaster, Zep 45 Kroil oil..or what ever you have handy (WD40 doesnt count)
.What motor..??.. does it run..?? if so ... before you start wailing on it...
take the correct socket and long breaker bar put socket on the crank nut and put breaker bar handle on the ground on the right side ....
then ..get in and "bump" the starter ..the theory is the torque of the motor turning with the handle laying on the ground and not able to move the crank bolt should break loose ... dont ask me how i know this.....been there done that..!! ( 01 Nissan Frontier ..front crank oil seal in timing chain cover. )
if you motor does not run or is out of vehicle .... then traditional methods will have to suffice 6ft breaker bar and screwdriver thru flywheel or real good quailty impact gun should spin that bolt out with little trouble. dont have one.?. beg, bum, borrow, steal one from your boss or nieghbor.
Good luck,..!! let us know how it turns out..!!
Larry
with minimal effort