I'd be willing to bet heavily it will impart an oakyness to the hooch. It's amazing to me how much oakyness is added to Chardonnay when it's stored in an oak barrel.

The other thing I'd suggest would be you'd lose some volume of the whiskey due to it being stored in the wood barrel.. Most distillers lose a fair amount of product while storing product in barrels (referred to as the "Angel's Share")