Moorcroft Mud Mafia
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Rules and Classes and Fees

Sportsman

TIRES

- 33" maximum DOT tire marked on the tires.

- Must be a mud tire (no straight tread tires).

- No cutting or grooving.

- No paddle tires.

ENGINE

- Gasline only - No strokers allowed.

- No blowers, alcohol or nitrous allowed. Specialty race fuels are allowed.

- Must be factory OEM rotating assemblies including rods, pistons, crankshafts and their components.

- Factory OEM ignition only.



- Maximum engine size, 368 cubic inches - No trans brakes.

- No fuel injection OEM or AFTERMARKET.

- Intake manifold must be OEM cast iron available for that make and year of truck, or an aluminum EDELBROCK PERFORMER low rise only. NO other brand names and no other makes of EDELBROCK.

- Absolutely NO PORTING of heads or intake allowed.

- Carb swaps allowed, vacuum secondary - single pump only.

- Open header allowed, exiting up or down, not out the side.

- Must run a steady 17 inches of engine manifold vacuum (minimum) at 1000RPM's for 30 seconds. No vacuum pumps or equipment that will produce vacuum.

- OEM installs (not to exceed 1800 rpm's)

- Must have a fan shroud.

- MUST HAVE VACUUM LINE ROUTED TO FRONT OR SIDE OF ENGINE BAY FOR EASY ACCESS BY TECH PERSONNEL.

- Solid cams allowed, no roller cams, no roller rockers.

- No after market heads which includes vortec, n-heads, dart, world, Indy and others. s/r heads are ok.

 

BODY

- Complete body required, corp. matching, make and model.

- Rear seats and tailgate may be removed - No gutting hoods.

- Must have 2 operating doors - Complete bumpers required.

- Body  must be completely intact. Dash components may be removed [ components only] no cutting. 


- Heater and air conditioning units may be removed from engine compartment, all holes in fire wall must be plugged.


- Hood scoops allowed - Must be rear facing - No isolation trays or plumbing allowed which isolate the air cleaner from the engine compartment or to the bottom of the hood.

- Must have factory front bumper. Tube bumper allowed in the rear.

- Tilt front hood allowed. No gutting of the hood. No removing the components from under the hood or the engine compartment. Hood must be operable.


FRAME & SUSPENSION

- Must be factory suspension - Axle swaps allowed

- Must have factory OEM unmodified frame.

- Must be factory transfer case for that year.

- Driver must sit in stock location.

- Tow hooks required, front and rear.

- Must be corp. match transfer case.

- Fuel cells allowed but factory.

- Factory OEM suspension three full length leaf springs minimum allowed. (New of 07).



SAFETY

- Must meet all safety requirements. - Fire Extinguisher.

- Brake Locks Recommended on manual Trans. Equip. Trucks.


Superstock

 

TIRES

- 37" maximum DOT tires marked on tires.

- No cutting or grooving.

- No paddling tires



ENGINE

- Gasoline only, NO nitrous, alcohol or forced induction.

- Roller rockers and roller cams allowed.

- No after markey fuel injection.

- Big blocks allowed, must be in stock location.

- 468 cubic inches allowed - Carb swaps allowed.

- No trans brakes - No aluminum heads. Open headers allowed if exiting up or down, not out sides.

- Must run a steady 15 inches of engine manifold vacuum (minimum) at 1000 RPM's for 30 seconds. No vacuum pumps or equipment that will produce vacuum.

- Front and rear mount radiators allowed but must have shielding to protect the driver in the event of a leak.

- Approved transmission blanket or shield required on all auto transmissions. Scatter shield required on bell housings of manual transmission equipped trucks.

-MUST HAVE VACUUM LINE ROUTED TO FRONT OR SIDE OF ENGINE BAY FOR EASY ACCESS BY TECH PERSONNEL.

 

BODY

- Complete body required, corp. matching, make and model.

- Rear seat and tailgate may be removed.

- Must have 2 working doors unless open bodied.

- Body must be completely intact.

- Minimal fender well trimming to accommodate larger tires.

- Dash components may be removed (components only). NO CUTTING

- OEM Bench seats allowed/racing seat strongly recommended.

- No fuel tanks inside driver's compartment.

 

FRAME & SUSPENSION

 - Axle swaps allowed. Must have factory OEM unmodified frame.

- Must have corporate transfer case.

- Driver must sit in stock location.

- Engine, tranny and chassis must be corporate matching.

- Tow hook required, front and rear.

- Two point traction bar allowed. Must hook to the top center of the rear end and not to proceed past the front two spring hanger bolts on the rear springs.

- Factory OEM suspension three full lenth leaf springs minimum allowed.

- Trucks must have drive shaft loops front and rear.

 

SAFETY

- 4 point harness - 4 point roll cage - fire extinguisher.

- Brake locks recommended on manual transmission equipped trucks.

- Must have fire suit, pants and shirt required.

- Window net on driver side or wrist restraint is highly recommended.

 

Pro Stock

TIRES

- 45" maximum DOT tires, cutting and grooving allowed.

- No paddle tires.

 

ENGINE

- Specialty race fuels, ethanol, and methanol allowed. No nitrous or nitromethane.

- Engine swaps allowed - corporate matching.

- Cast iron blocks only - No blowers.

- Open headers allowed exiting up or down, not out the side.

- Aftermarket fuel injection and Port fuel injection allowed.


- Turbo allowed on diesel engines only.

 

- Multiple carbs allowed.

 

BODY

- Body swaps allowed - No fiberglass bodies.

- Wheel wells must match factory frames +/- 2 inches.

- Body must be completely intact.

- Fender well trimming to accommodate larger tires.

- Inner fender not required.

- Windshields required.

- Bedside skins only are allowed.

- Must have 2 operating doors unless open bodied.

- Cab interior - anything that can be unbolted or unscrewed may be removed (no cutting).

 

FRAME & SUSPENSION

- Factory frames only, must maintain at least 2 original cross members and be factory width.

- Engine must be set in stock factory frame location.

- 4 link suspension allowed.

- 2 drive shaft loops mandatory, front & rear. Loops must be made of substanial rigid construction, no chains, cables, etc.

- Engine and chassis must be corporate matching.

- May use aftermarket transmission.

- Tow hooks required, front and rear.

- Aftermarket suspension allowed.

 

SAFETY

- 4 point harness - 4 point halo cage in cab - Fire extinguisher.

- Must have U-joint guards and tranny blankey.

- Must have chain guard both sides and top if chain drive.

- A kill switch is mandatory and must be connected to electric fuel pump - a tether switch is manditory.

- SFI harmonic balancer or shield required.

- Must have firesuit, pants and shirt required if running methanol nust have 3 layer fire suit, head sock, leather boots or racing shoes, and gloves.

- Window nets on driver side or wrist restraint.

 

Pro Mod

TIRES

- 45" maximum DOT tires, cutting and grooving allowed.

- Paddle tires are allowed.

 

ENGINE

- Specialty race fuels, ethanol, and methenol allowed. no nitrous and nitromethane.

- Cast iron blocks only - No blowers.

- Engine swaps allowed - Multiple carbs allowed.

- After market fuel injection and port fuel injection allowed.

- Open headers allowed exiting up or down, not out side.

 

BODY

- Body swaps allowed, must be recognizable body.

- Must have barrier between driver and radiator.

- Fiberglass bodies allowed.

 

FRAME & SUSPENSION

- Two drive shaft loops manditory, front and rear. Loops must be made of sustantial rigid construction, no chains, cables, etc.

- May be factory frame rails, any width and length.

- Tube chassis allowed.

- Any suspension.

- Tow hooks required, front and rear.

- Engine can be in any location except the rear.

 

SAFETY

- A kill switch is mandatory and must be connected to an electric fuel pump. A tether switch is manditory.

- Four point harness - six point roll cage - fire extinguisher.

- Must have harmonic shield for OEM harmonic balancer.

- Must have U-joint guard.

- Must have chain guard both sides and top if chain driven.

- Must have tranny blanket

- Must have 3 ply fire suit required. Can be one or two piece.

- Must meet all safety requirements.

- Full face helmet, head sock, fire retardant gloves, must have leather boots or race shoes, no tennis shoes.

- Window net on driver side or wrist restraint.

 

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