Late Model Rules

The rules are subject to change in the better interest of racing or safety.

Eligible Models

a) This division is limited to 1980 through current American manufactured stock car bodies.

b) Late Model Stock Cars MUST have type of car displayed on body with 3″ minimum letters.

Examples: Camaro, Monte Carlo, Mustang, Probe, T-Bird, Grand Prix, etc.


a) Nose and roof must match body style.

b) Floor boards and firewall must cover the driver’s area and be constructed to provide maximum safety

c) Driver’s seat must remain in the same general area as the general design.

d) Windshield screen or bars are mandatory.

e) Neatly painted number at least 18″ high is required on each side of the car and roof.

f) No fins or raised lips of any kind permitted ANYWHERE, the entire length of car.

g) Body line must be a smooth, even line from front to rear.

h) NO slope nose/Late Model wedge cars. PERIOD!!!

i) Any Ford bodied car MUST use Ford engine.

Example: Ford-Ford, Chevy-Chevy, Mopar-Mopar, etc.

j) NO belly pans or any type of enclosure on bottom of car is permitted. Skid plate to protect oil pan is okay.

Stock Nose Pieces

a) Two piece nose MUST be fastened together in center. NO spacers to gain width allowed.

b) MUST be mounted not to alter original shape.

c) NO material can be removed from nose piece. NO cutting from bottom, top or sides.

d) NO adding to bottom at frontal area to achieve lower ground clearance.

e) Stock nose piece can extend a MAXIMUM of 46″ from center of front hub to farthest point extending forward.

f) Front fender flairs MUST be made of plastic and CANNOT alter original shape of nose piece. Front fender flairs CANNOT extend beyond front tire track width with wheels pointed straight and must have collapsible support. NO STEEL SUPPORTS

Roof and Roof Supports

a) MUST be stock appearing and mounted level.

b) MUST be stock dimensions.

c) 45″ MINIMUM height from ground.

d) MUST be mounted parallel to body and near center of car

e) A MAXIMUM 1″ roll (turned downwards) is allowed along the front edge of the roof. A MAXIMUM 1″ roll (turned downwards) is allowed along the rear edge of the roof. (Roll allowed to help strengthen roof).

f) All roof side panels MUST extend to edge of body, be flat. MUST stock OEM size and MUST be of same make and model as nose piece.

g) Any sun shields (4″ MAXIMUM) must be able to hinge for easy exiting of car.

h) Front roof supports CAN be no MORE or LESS than 2″ wide by 24″ long.

i) If body style has rear windows, roof sail posts MUST be in stock location. Window location MUST be kept open. NO lexan or filler panel allowed.

NOTE: Grand Prix-Ford, etc.

Front Fenders and Hood

a) Must be level and flat from left and right side.

b) Fenders CANNOT gain height from rear to front of car.

c) NO part of fenders or hood can be below outside body line.


a) At NO point can door sides break in towards center of car.

Quarter Panels

a) NO offset quarter panels. MUST be equally tapered towards the center of the car. If quarter panels are not equally tapered towards center of car a 50 lb. weight penalty will be accessed.

b) Tire clearance from body MUST be at least 2″. NO WHEEL OR REAREND SKIRTS!!

c) At NO point can quarter panel sides break in towards center of car.


a) NO aluminum frames or front clips may be used in construction.

b) MINIMUM 103″ wheel base.

c) The wheel base on all cars MUST be constructed of 2″ x 2″ MINIMUM rectangle or square tubing with a MINIMUM of 8″ circumference and a MINIMUM of .083″ wall thickness.

d) TUBE FRAME OPTION: The wheel base of all cars should be constructed of a MINIMUM of 1 3/4″ round tubing and should have a wall thickness of .083″ MINIMUM.

All tube frame cars should use 4130 Chrome Moly Steel in construction of frame.

Roll Cages

a) Interior MAY BE dropped to the middle of the car NO more than 3″ below the top of the doors and MUST be at least 12″ below the roll cage.

b) Interior MUST gradually taper up to the quarter panel height and be level for 32″ from rear of the quarter panel.

c) Interior MUST be fastened flush at the top of the doors and quarter panels and MAY taper gradually towards the center of the car. NO creating a lip effect.

MINIMUM of 8″ taper. MAXIMUM 3″ drop extending from firewall to rear of door pieces in a continuous line.

d) Interior MUST run in a straight line from behind the driver’s seat to the rear spoiler.

e) If interior is flat through the car, it MUST maintain a 12″ clearance from roll cage for easy exiting from either side of the car.


a) Rear spoiler MUST be manufactured of transparent material of adequate strength, such as Lexan.

b) Rear spoiler material MAXIMUM 8″ height measured from deck to tip of material. MAXIMUM 72″ width.

c) Rear spoiler CANNOT be suspended above the deck to create a wing effect.

d) Rear spoiler MUST begin where quarter panel ends. NO extended decks.


a) Engines MUST be based on a factory design and be naturally aspirated. Aluminum blocks allowed.

b) NO fuel injection devices, electric fuel pumps, turbo chargers or blowers permitted.

c) Magnetos are permitted. However, the engine must have an operating self starter.

d) The engine may be set back a MAXIMUM of 6″ from the center of ball joint to front of the number one spark plug.

e) Carburetor is limited to one (1) four barrel.

f) NO titanium or exotic material crankshafts or connecting rods permitted.

g) ALL engines limited to one (1) spark plus and two (2) valves per cylinder.

h) Aluminum blocks are allowed, no cubic inch limit. Aluminum heads are permitted.

Fuel Systems

a) An approved fuel bladder and metal container (32 gallon MAXIMUM) MUST be securely mounted in the trunk area of the car inside a 20-gauge metal box supported by two (2) 1/8″ x 2″ steel straps.

b) A firewall MUST be installed between the fuel bladder and metal container and driver’s compartment.

c) Fuel bladder container MUST NOT be mounted lower than bottom of quick-change rearend.

d) No pressurized fuel systems

e) Gasoline or Alcohol ONLY. Nitrous gases or other nitrate additives are NOT permitted.

Transmission and Clutch

a) Drive train MUST have transmission mounted on the rear of engine and lead to one (1) drive shaft. NO direct drive or in-out boxes permitted.

b) Any transmission with working forward and reverse gears is permitted.

c) Manual transmissions MUST be equipped with an operational clutch.

d) Automatic transmissions are permitted.


a) 11 inch



a) Steel, aluminum, carbon-fiber or plastic wheels are permitted.

b) Wheels MUST be mounted with lug nuts. NO knock-off mounting devices are allowed.

c) MAXIMUM wheel width is 14″


a) Cars should be equipped with operational four-wheel braking systems approved by track officials.

Jacking Devices

a) NO remote shock controls or adjusters. NO weight jacks of any kind permitted (this includes 5th coils, etc.) PERIOD!! ANY driver using remote shock controls or adjustors or weight jacks WILL BE DISQUALIFIED!!


a) CANNOT point towards ground. MUST be parallel to track.

Traction Control Devices

a) NO electronic or computerized wheel spin/traction control devices permitted. ANY driver using electronic or computerized wheel spin/traction control devices WILL BE DISQUALIFIED!!

Safety Equipment

a) Batteries MUST not be located in the driver’s compartment.

b) ALL cars should have an approved fire extinguisher with working pressure gauge securely mounted within the reach of the driver. NOTE: A five-pound Halon System is recommended.

c) Nylon mesh window screens are required.

d) Racing seats and racing seatbelts with shoulder harness are REQUIRED and MUST be securely fastened to the car frame.

e) A drive-line sling is REQUIRED.

f) An approved racing helmet is REQUIRED.

g) Fire resistant uniforms are mandatory.

h) Fire resistant gloves, underwear and socks are mandatory.

Weight Limit

a) A MINIMUM weight limit is in effect.

b) ALL legal built cars MUST weigh a MINIMUM of 2200 lbs. with driver after the race.

c) Added weight or ballast MUST be securely fastened and painted white with your car number on it.

d) Scales will be available at all sanctioned events.

e) The Speedway’s scales WILL be the official weighing device for ALL racing events. Competitors MUST abide by the Technical Director’s decision.


a) Cars MUST be in good operational condition and be presentable in appearance, subject to the judgment of the inspection officials.

b) NO wings or tunnels of any kind allowed under the cars.

c) NO electronic or computer controlled devices of any kind permitted.

d) NO mirrors allowed.

e) Tow hooks are MANDATORY.

f) Wheel drapes and rear-end drapes ARE PROHIBITED AT ALL TIMES

g) Cars NOT meeting Port Royal Speedway’s specifications WILL HAVE WEIGHT ADDED AT OFFICIAL’S DISCRETION.

h) Port Royal Speedway reserves the right to change and/or alter rules and procedures at any time.


i) NO radios are permitted.

NOTE: All dimensions are in the drawings. Any nose piece, materials or mechanical devices that are NOT specifically mentioned in these rules are illegal unless or until they have been sanctioned and agreed to by the Port Royal Speedway.

Teams that have any questions with regard to any technical rule or any particular new products should call Port Royal Speedway at 717-527-2303

Minimum Heights For Stock Nose Pieces

Early Camaro/Firebird 20″   GrandPrix 20″
94-96 Camaro/Firebird 18″   Avenger 19″
Monte Carlo 20″   Daytona 23″
Lumina 21″   Mustang 20″
Cutlass 21″   Probe 19″
Regal 20″   T-Bird 20″

Roof Dimensions

  Roof Width Roof Length
Buick Regal 50″ 55″
Early Camaro/Firebird 48″ 41″
94-96 Camaro/Firebird 49″ 41″
Lumina 50″ 55″
Monte Carlo 50″ 51″
Avenger 52″ 50″
Daytona 46″ 51″
Mustang 48″ 43″
Probe 48″ 50″
T-Bird 50″ 54″
Cutlass 50″ 55″
Grand Prix 50″ 51″