I don't know about the state of Or. but most of the time back then the number on the motor was used on the title as the Vin#.
I would contact ur state license dept., DMV, or what ever they call it in your state and ask them what needs to be done to straighten out the situation.
When I titled my truck I asked that the Vin # be changed from motor number to Vin # from the plate on the cab.
That required a persomal inspection to verify but I got it done.
Dan
