1. All general rules apply.
2. A Single cylinder Super Stock is defined as any tractor having one cylinder, air cooled four cycles, flat head, two valves same side of engine.
3. Any type of Naturally Aspirated induction is permitted. a. Carbureted Only.
4. Alcohol
5. All tractors must have a grill and hood.
6. Wheelbase 56 inches maximum.
7. 50.5 Cubic Inch.
8. Shielding: 1/8 inch steel ¼ inch aluminum. Shielding will run from the bottom of the cylinder to the bottom of the crankcase on both sides (Stock Blocks Only). On the front and rear on cross mounted motors. Shields must be bolted to the frame.
9. Tires not to exceed 26 x 12 x12.
10. All heads must be strapped with a permanently mounted metal bar (Stock Blocks Only.)
11. Drivers must wear helmets and fire suits, zipped and strapped.
12. All Flathead Classic Super Stock drivers must wear helmets and fire suits, zipped and strapped. All Flathead Classic Super Stock drivers must be able to operate their own tractor and drivers that are 12-15 years old must pass a test before driving a Super Stock tractor. (They will be watched by the board members for the first three pulls).