I believe the old guy who designed and built this changed the water pump arrangement so that it would fit under the hood of the tractor. I have no plans of changing his design, it works just fine.
The tyres are Mickey Thompson racing tires. They're about a meter wide! He made the wheels too.
Original tyres were same as seen here on my C-121. As I said before, This "Wheel Big Horse' started off as a C-series Wheelhorse lawn tractor. These came with 8hp, 10hp and 16hp engines made by either Kohler or Tecumseh. The hood and frame on the "Big Horse" were elongated and it was fit with the 3k engine and big wheels. But originally it looked like my 1972 C-121 shown below
I'm planning on using it mostly for show. I'll take it up to the fair and we have a couple parades every year I'll probably enter it in. Also thinking about setting it up with a hitch so I can pull my boat and a couple trailers around on my property. Maybe mow the lawn... lol seems like the turning radius would be a little bit tough but I'll look cool! It's an oddity. To me it's a work of art. I just marvel at the skill and work that went into it and would like to preserve it and share it with other people. People who are familiar with wheelhorse tractors, which are no longer made and have become somewhat collectible and sought after, recognize it when they see it.
Oh, we have tractor races over here! Well see how it goes... maybe enter it in the races at the fair this summer!