Hot Stock Rules
Open to ages 10-19
1. Class open to 900 lb, 1100, lb, 1300 lb hooks.
2. All tractors must use lawn mower type motor, 45.6 cubic inch maximum V-twin or Single cylinder.
3. No fuel injection.
4. 4800 rpm limit. Motor must have stock governor installed.
5. Relocation of components allowed.
6. Modifying of body panels allowed.
7. Bar lug tires allowed. Tread may be modified. No purpose built manufactured bar lug pulling tires allowed.
8. No Pro pulling tires. No Dick Cepek, Lawntec, Pitbull, Vogel Manufacturing, or Nichols brand tires allowed.
9. 52 1/2 inch wheel base maximum.
10. Tractors must have wheelie bars.
11. Tractor must have adjustable hitch with no less than 1 1/2 inch hole for hook.
12. All tractors must have rear mounted tether kill switch that must shut off ignition and electric fuel pump.
13. Flywheel must be covered 360 degrees.
14. Over 4000 rpm shroud must be built according to Safety Rules, under 4000 rpm Stock shroud allowed.
15. All belts must be covered.
16. All tractors must have hood.
17. All tractors must have rear fenders.
18. No turbos.
19. Tractor must use stock appearing rear end.
20. Motors must have stock carburetor, stock intake manifold, and stock heads for make/model of motor. Carburetor maximum venturi size, 1 inch for single barrel carburetor, 22 mm venturi size for two barrel carb. Venturi must be round in shape and choke plate must be installed in carburetor.
21. Motors must retain stock stroke.
22. Only engine modification allowed is changing of flywheel, exhaust, rods, and pistons. Long rod kits must use deep wristpin set piston so as not to change stroke. Stoke must remain stock.
23. Single cylinders must retain stock valve train.
