Texas Truck & Tractor Pulling Association has multiple different classes that compete at our events. Each class has unique parts requirements, rules and power. Keep scrolling for some info on all the classes.
CLASS #1
Limited Mod
Limited Modified Tractor
- 5200 lbs
- Pre-1963 Tractor Rear End
- 410 CID Gasoline
- Single 4 Barrel
- Cast Aluminum Intake
- Aftermarket Cast Iron Heads
- 20.8" Wide Cut Tires
- 7000 RPM Limit
- 750 HP
Class #2
Pro Stock 4x4
Pro Stock 4x4
- 6200 lbs
- OEM Frame
- One Ton Front Axle
- 485 CID Gasoline
- Any Block (4.9 Bore Space)
- Any Heads except HEMI
- Single 4 Barrel
- Cast Aluminum Intake
- 33 x 12.5 DOT Tires (un-cut)
- 8000 RPM Limit
- 1000 HP
Class #3
Econo Rod
Economy Modified Tractor
- 6200 lbs
- Any Rear End
- 500 CID Gas or Alcohol
- Single 4 Barrel
- OEM Block
- OEM Cast Iron Heads
- Cast Aluminum Intake
- 24.5" Wide Cut Tires
- 800 HP
Class #4
Limited Pro Diesel 4x4
Limited Pro Diesel 4x4
- 8000 lbs
- OEM Frame
- One Ton Front Axle
- 2.6" map or 3.0" smooth bore Turbo
- Intercooled
- No Water Injection
- OEM Block and Heads
- DOT Tires (un-cut)
- 1200-1500 HP
Class #5
Hot Farm
Hot Farm Tractor
- 9000 lbs
- Ag Rear End
- 466 CID Diesel
- 3" Turbo
- Water Injection
- No Intercooler
- OEM Block, Head and Manifold
- 24.5" Wide Cut Tires
- 1500 HP
Class #6
Pro Mod
Pro Modified Tractor
- 6200 lbs
- Any Rear End
- 515 CID Blown Alcohol
- 8-71 Standard Blower
- Any Block
- Conventional Style Heads (No HEMI or Pro Stock)
- 30.5" Wide Cut Tires
- 1500 HP
Class #7
2WD
Super Modified 2WD Truck
- 6200 lbs
- 650 CID Blown Alcohol
- 14-71 Standard Blower
- Any Block or Heads
- 18.4" Wide Cut Tires
- 3000 HP