4WD Modified Class

1. Any body style having a professional appearance permitted. Trimming and narrowing of body allowed.
2. Tube frames are allowed.
3. Must have a properly secured roll-cage constructed of 1 5/8” round tubing.
4. Must have two properly secured driveshaft loops on each drive shaft.
5. Four wheel drive only.
6. No rear engines.
7. Must have a properly functioning brake system to adequately stop the vehicle within 200 feet.
8. Must have a master shut off switch located on the rear of vehicle in the center (not on sides).
9. Vent line required on fuel cell. Must extend 6" below fuel cell and be secured. No open vents on top of tank.
10. Transmission blanket or shield is required.
11. Any type of suspension permitted.
1. Ladder Bar
2. Four-Link
12. Any gear ratio combination permitted.
13. Any D.O.T. cut or uncut tire. No paddle tires allowed.
14. Gasoline or Alcohol.
15. Any small or big block less than 572 cubic inches permitted.
    1. Sfi approved damper and flywheel recommended.
    2. No aluminum blocks.
    3. Only one carburetor of any size permitted.
    4. No sheet metal intakes.
16. Total vehicle weight including driver must exceed
    1. 3,000 lbs. for big blocks.

1. 2,800 lbs. for small blocks.