Models – 1980 through 2017 American Manufactured Stock Car Bodies.

Body
1. Nose and roof must match body style.
2. Cars must have a maximum of 1-1/2” roll at top of fenders, doors and quarter panels. A sharp edge will not be allowed. Body must go from sides over upper body, and not upper body over sides.
3. Floor boards and firewall must cover drivers compartment and be safely constructed.
4. No fins or raised lips permitted.
5. No slope or wedge nose.
6. Engine must remain within company lines. EX-Ford/Ford, GM/GM, etc.
7. No belly pans but oil pan plate permitted.
8. Nose pieces must be made of molded material with a 46” maximum from center of front hub to the farthest point extending forward.
9. Fender flares must be plastic and cannot extend beyond front tire track width with wheels pointed straight.
10. Roof must be stock appearing.
11. Front fender cannot gain height from rear to front of car - cannot exceed 34” in height from the ground to the top of fender at the center of front wheels.

Frame
1. No aluminum frame or front clips.
2. 104” minimum wheel base and must be constructed of 2”x 2” rectangle/square tubing or 1-3/4” round tubing and must have a wall thickness of .083”. All tube cars must use 410 Chrome Molly Steel construction.
3. If rear bumper is stubbed, it may extend a maximum of 8” beyond the frame. Any rear bumper that extends 8” or more past the frame must be rounded and directed toward the front of the car at least 6”.

Roll Cage
1. Side roll bars are mandatory and must extend into the door panels.
2. Minimum of three bars must be used on the left side. Each bar must be at least 1-1/2” diameter with thickness of .095”.

Interior
1. Minimum of 8” taper, maximum 3” drop extending from firewall, to rear of door pieces, in a continuous line.
2. Must run in straight line from behind the driver to the rear spoiler.
3. If the interior is flat through the car, it must maintain a 12” clearance from the roll cage for easy exiting from either side of the car.

Spoiler
1. Recommended to be transparent but not mandatory (to allow aluminum spoilers) with a maximum height of 8” measured from deck to tip of material. Maximum width of 72”.
2. Must begin where quarter panel ends. No extended decks and cannot be suspended above deck to create a wing effect.

Engine
1. Must be based on factory design with aluminum blocks allowed.
2. No fuel injection devices, electric fuel pumps, turbo charges or blowers allowed.
3. Mags allowed but must have operating starter.
4. Engine set back is maximum 6” from the center of ball joint to front of the spark plug hole.
5. One four-barrel carburetor.
6. No titanium or exotic material crankshafts or connecting rods.
7. Oil pan should have 1” inspection plug on the side of pan for magnet use or pan could be required to be removed for inspection.
8. Only one spark plug and two valves per cylinder.
9. All cars must have unaltered mufflers!!

Fuel System
1. An approved fuel cell (32 gallon maximum) must be securely mounted in the trunk area of the car inside a 20 gauge metal box supported by two 18” x 2” steel straps.
2. A firewall must be installed between the fuel tank and the driver compartment.
3. Fuel cell must be visible from the rear of the car and must not be mounted lower than the bottom of the quick-change rear end.
4. No pressurized fuel systems.
5. Gasoline or Alcohol only. No additives allowed.

Tires
1. Any 11" x 92" tire will be allowed. (LVS-Open Tire Rule)
2. No buffing or grinding of lettering allowed.

Wheels
1. Steel, aluminum, carbon fiber or plastic wheels allowed.
2. No knock off mounting devices allowed. You must use lug nuts.
3. Maximum width is 14”.
4. Maximum width outside front wheels is 88".
5. Maximum width outside rear tires is 86".

Brakes
1. Must be equipped with four-wheel brakes.

Jacking Devices
1. No remote shock controls or adjusters. No weight jacks of any kind permitted (this includes fifth coils, etc.)

Exhaust
1. Mufflers are mandatory and must exit parallel to track and not at the ground.

Transmission and Clutch
1. No direct drive in and out boxes allowed.
2. Any transmission with working forward and reverse gears are permitted.
3. Manual transmission must have operational clutch.
4. Automatics are allowed.

Traction Control Devices
1. No electronic or computerized wheel spin-traction control devices allowed.

Weight
1. Minimum weight is 2,200 lbs. with driver after the race. Added ballast must be securely fastened with the car number painted or stamped on it.

Radio
1. One-Way Radios required. (Frequency -454.000)