Class Rules

Local/Stock

Hobby Stock

Mod Stock

• Tire size and tread at techs discretion. No boggers. D.O.T. approved tires only.
• 415 C.I.D Max.
• Must pull 18" vacuum @ 1000 RPM.
• Cylinder heads and valve train must be unaltered OEM. All heads must have been issued on a production vehicle. No limmited production, after market or performance heads allowed. Heads must be year correct to the truck.
• No Racing fuel or diesel allowed.
• No aftermarket ignition allowed.
• No solid cams.
• Carburetors must have factory choke tower, no alterations or modifications.
• All trucks must be street legal (licensed and registered in owner’s state of residence).
• Flat beds must cover the same area as factory box.
• Any vehicle modifications or aftermarket parts will be approved at techs discretion.
• All carbureted motors must have cast iron heads, intake, and exhaust manifolds.
33" tires or less, D.O.T. approved, no cutting or grooving allowed. 
472 C.I.D. Max. Must be corporate matching. 
Must pull 17" vacuum at 1000 RPM. No vacuum pumps or vacc producing equipment. 
E 85 allowed. No race fuel. No nitrous or alcohol. No diesel. 
Diesels at techs discretion. No performance chips. 
After market ignition allowed. 
No aftermarket blocks 
Heads must be factory production, cast iron. 
-All heads must have been issued on a production vehicle. No limited production, after market or  performance heads allowed.
No solid cams. 
Must have exhaust to the rear of the cab. 
No vertical headers. 
After market intakes allowed. Must be dual plane. No air gaps. No modifications. 
Carburetors must have factory choke tower and be able to accept a choke butterfly with no alterations or modifications.

No traction control devices. 
After market stall converters allowed. 2500 RPM or less. No transmission brakes. 
Must have front and rear bumpers. 
No axle swaps (must be corporate matching). 
Posi - traction rear ends allowed. 
Must be naturally aspirated. 
No aftermarket fuel injection. 
Radiator must be in factory position. 
Must have corporate matching frame and suspension. No conversions. 
Fuel cell must be safely secured away from the cab. 
No cutting / gutting fenders or body panels. 
All factory glass must remain intact. Blazers & Broncos can remove tops. 
Flat beds must cover same area as factory box and support 400 lbs. at any point. 
Must have neutral safety switch. 

3 leaf suspension minimum. 
Must have scatter guards on pinion side of each driveshaft. 
Must have full bench or 2 bucket seats. 
No more than 6 inches of total lift. 
Helmets must be strapped. 
Working fire extinguisher in the cab.

35" tires or less. D.O.T approved. No cutting or grooving allowed. 
Engine must be corporate matching. 557 C.I.D. max 
Big blocks must pull 17" vacuum at 1000 rpm, Small blocks 15". No vacuum pumps. 
Heads must be factory production, cast iron. No aluminum heads. 
After market small blocks allowed with factory deck and bore spacing. 
Big blocks must run dual plane intake. 
Small blocks may run single plane intake. 
Racing fuel allowed. No nitrous or alcohol. 
No aftermarket fuel injection. 
No vertical headers. 
Aftermarket stall converters allowed. No transmission brakes. 
Mid-sized, factory V8 trucks (Dakotas, Explorer, etc.) must be small block. 
Axle swaps allowed (corporate match does not apply). 
Must have factory front bumper, rear is optional. 
Must be naturally aspirated. 
No aftermarket fuel injection. 
Radiator must be in factory position. 
Must have corporate matching frame and suspension. No conversions. 
Must have a fuel a cell. Secured a safe distance away from the cab. 
No cutting / gutting fenders or body panels. 
All factory glass must remain intact. Blazers & Broncos can remove tops. 
Flat beds must cover same area as factory box and support 400 lbs. at any point. 
Must have neutral safety switch. 
Must run transfer case. 
3 leaf suspension minimum. 
Must have scatter guards on pinion side of each driveshaft. 
Must have full bench or 2 bucket seats. 
No more than 6 inches of total lift. 
Helmets must be strapped. 
Working fire extinguisher in the cab.

Super Stock

40" tires or less. D.O.T. approved. Cutting and grooving allowed on rear tires only. 
600 C.I.D. Max-Engine must be corporate matching. 
Big blocks must pull 14" of vacuum at 1000 rpm, Small blocks 12". No vacuum pumps. 
After market heads are allowed. Aluminum heads with port architecture that will accept factory production intake and exhaust manifolds will be allowed with one inch of vacuum penalty. 
Aluminum heads with hemispherical combustion chambers are not allowed. 
Aftermarket blocks with factory deck height and bore spacing are allowed. 
Must have single carburetor. 
Vertical headers are allowed. Must provide remote vacuum line for tech inspection. 
Must be naturally aspirated. 
No aftermarket fuel injection. 

Any ignition system is legal. 
No nitrous or alcohol. 
After market stall converters allowed. No transmission brakes. 
Fender trimming allowed. 
Interior gutting allowed. 
Flat beds must cover same area as factory box and support 400 lbs. at any point. 
Must have neutral safety switch. 
3 leaf suspension minimum. 
Must have scatter guards on pinion side of each driveshaft. 
Mid-sized, factory V8 trucks (Dakotas, Explorer) must be small block. 
Must have corporate matching frame and suspension. No conversions. 
Rear mounted radiator is allowed. 
All non-removable body panels must be in place and structurally sound. 
Helmets must be strapped. 
Working fire extinguisher in the cab. 
Roll over protection mandatory - 4 points to the frame.

Powder Puff

Any vehicle that has passed tech inspection and has been entered into stock, hobby stock or modified stock classes will be legal. 
No drivers from previous classes are allowed to drive in powder puff. 
Powder puff race will take place after all other points races are over. 
All safety rules apply.

Open/Unlimted

Any tire size. D.O.T. Approved. 
Cutting and grooving allowed. 
No nitrous. 
Must be naturally aspirated. 
All factory body panels and doors must be in place. 
Roll cage mandatory. Roll cages must be connected to the frame at 4 points. 
Any safe constructed suspension allowed. 
Safety at techs discretion. 
Must have loops on each drive shaft and scatter guards at the pinions of each axle. 
Must have drivers side protection or full face shield helmet. 
Must have race seat and 4-point harness. 
Must have accessible rear kill switch that disables all electrical power to the vehicle. 
Must have transmission blanket or shield. 
Fire extinguisher required. 
Alcohol allowed with fire suit. 
Must have factory frame and suspension with two unmodified crossmembers in tact.

Unlimited
Any safe 4x4 vehicle allowed. 
Nitrous and alcohol allowed with fire suit. 
Must have 5-point harness, helmet strapped. 
Roll cage mandatory. Roll cages must be connected to the frame at 4 points. 
Drive shaft loops and scatter guards required.