Unfortunately, the answer is no. The engines run clockwise when viewed from the flywheel side which translates to counterclockwise from the PTO side. There is a company called Noram that makes reduction gearboxes, but I do not know of one that reverses the direction of rotation. Here's a link to their website:http://www.noramclutch.com/reduction-gearboxes/
I wish I could provide an answer for you that would get you exactly what you're after, but without some custom modifications I don't believe that it exists.