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1.1.  For 2024, the Charger Division will be Division 2 and all drivers must obtain a NASCAR Charger Division driver’s license.


2.1.  1970-2023 rear wheel drive body cars with a minimum wheelbase of 104”.

2.2.  NO “new” cars allowed.  The Competition Director has authority to deny any entry from competing in this division.


3.1.  All cars must have a minimum of (2) doors, (2) rear quarter panels, deck lid, bumper covers, roof, and hood. 

        Body may be metal, plastic, or composite.

3.2.  All bodies must meet roof and spoiler height template specifications.  Roof height is 48” measured 10” back from center

        of windshield.

3.3.  New style bodies will be allowed. No ride height rule, no bump stops.  All bodies must be approved by speedway.

3.4.  See General Rules for lettering, numbering, and markings.

3.5.  Rocker panels may be fabricated.

3.6.  Full front and rear windshield required, must be minimum 1/8” lexan. Clear lexan or plexiglass may be installed in the rear

        quarter windows. No side windows.

3.7.  Speedway approved window net must be installed in the driver’s side window opening.

3.8.  Car heights will be checked on 4″ blocks. Max overall spoiler height is 39”.

3.9.  Rear spoiler 5” high with maximum 60” width (max 300 square inches).

3.10.  Wrecker hookups required, both front and rear.

4.     FRAME:

4.1.  Stock OEM front sub frame with tubing frame connector allowed.

4.2.  OEM stock clip must have factory OEM mounting points for weight break. Rear trailing arm mounts may be fabricated.

4.3.  Fabricated clip and lowers allowed with weight penalty.

4.4.  Frame rail min 2”x 3”. Minimum 3-inch crossmember, oil pan, and exhaust clearance.

4.5.  A steel firewall must separate the driver from the engine compartment and fuel tank.

4.6.  Perimeter chassis 55% maximum left side weight.  Older non-perimeter chassis allowed 53% maximum left side weight.

5.     ROLL CAGE:

5.1.  A complete speedway approved roll cage.

5.2.  Roll cage must be constructed of roll bar tubing with a minimum outside diameter of 1½” inches x .083 wall thickness.

5.3.  Roll cage must be centered on the frame. Perimeter style.

5.4.  Main roll cage uprights must be on top of outside frame rails.

5.5.  A full cage is required with four uprights and four top bars.

5.6.  Roll bars may go through the front and rear firewalls.

5.7.  A minimum of three bars in driver’s and passenger’s door required.

5.8.  All bars within drivers reach must be padded.


6.1.  Adjuster cups allowed on front and rear.

6.2.  Spring spacers, coil over eliminators, or screw jacks may be used on front and rear.

6.3.  OEM type steering box. Aftermarket tie rods, center links, idlers, and pitman arms allowed.

6.4.  Lower A-frames must be OEM Design. Lower A-Frames must be the same length. Aftermarket lowers can be used but must

        conform to OEM Design. Aftermarket Spindles Allowed.

6.5.  Upper A-frames may be fabricated.

6.6.  Front sway bar may be an OEM or aftermarket. Mounting points may be aftermarket.

6.7.  Leaf spring and/or coil spring suspension allowed.

6.8.  Steel rear lower trailing arms required.

6.9.  A fabricated metal top link and track bar allowed.

6.10.  Damper shocks may be used.

6.11.  Rubber bushing, metal bushing, Teflon bushings or heim joints allowed.

6.12.  Lowering blocks and trailing arms may be adjustable.

6.13.  Aftermarket or 5×5 design hubs allowed. Wide 5 and coil overs allowed.

6.14.  No bump stops or travel limits on suspension.  No coil binding.

7.     REAR-END:


7.1.  9-inch rear end may be car, truck, or floater. Any ratio. A quick change will be allowed.

        No Cambered Rear End Housings. +/- .4. 

7.2.  Detroit Locker, or Locked Rear End Units only.

7.3.  Tubes and axels must be steel. No low drag or polished parts are allowed.  Newer quick change rear ends allowed with 25lb

        weight penalty.

7.4.  No lightweight 10” or smaller center sections.

8.     SPRINGS and SHOCKS:

8.1.  Tie rod or spherical end shocks allowed.  OEM aftermarket struts allowed.  Coil overs allowed.

8.2.  Aftermarket metal body shocks allowed. Shocks are subject to weight penalty. Coil springs minimum diameter 5”.

        If running coil over eliminators must have 5″ min spring.

8.3.  Coil over eliminator allowed. No coil binding or travel limiting devices. No bump stops. 

        May only use one spring rubber in each spring that makes a maximum of 360 degrees.

8.4.  Schrader valves allowed.

8.5.  Shocks may be claimed for $175 per shock, excluding hardware. A claim must be made prior to the claimed leaving the

        inspection area. Driver must finish on lead lap to claim and may only claim shock(s) of driver finishing ahead of you,

        not behind you. A driver or owner can claim but must be made in CASH and presented to Competition Director prior to

        the claimed leaving inspection area.  If driver or owner refuses the claim the driver will be disqualified from the event with no            pay/points.  Refusal will incur a $500 and possible suspension.

8.6.  Competition Director may claim a competitor’s shocks at any time.

9.     BRAKES:

9.1.  Single piston steel OEM stock brake calipers allowed.  All 4 wheels must work.

9.2.  Aftermarket brake and clutch pedal allowed.

9.3.  Dual master cylinder allowed. Any type of brake bias adjusters allowed.


10.1.  104” minimum wheelbase.

10.2.  Cars must not exceed the maximum allowable tread width of 65 inches plus or minus ½”.



11.1.  Crate engines can be used but must remain within factory specs and parts as     supplied from factory manufacturer.

          These engines are subject to teardown  procedures and legalities determined by the Competition Director. 

          Aftermarket HEI   distributor and cap, aftermarket valve covers may be used.  The 604 Nascar engine allowed with a

          350 or 450 carb.

11.2.  Chevrolet #8602 and Chevrolet #8603 may run a 390 4 Barrel carburetor with 1” spacer.

          Chevrolet #8604 and Ford crate engines will be allowed but must run up to a 450 2 bbl. carburetor.  

          NASCAR guidelines will be used.

11.3.  Wake County Speedway management reserves the right to claim any crate engine at factory replacement cost. 

          Anyone refusing the claim is subject to a fine, suspension, or a combination thereof. Refusing a claim will result

          in the loss of finishing position and points/monies earned for that night.

11.4.  Crate engines are designed to cut the cost of racing. Anyone found tampering with these engines will be fined up to

          $1000.00 for each offense and loss of points.

11.5.  Crate engines are a great application for weekly racing if the competitor will leave them alone. Run them as supplied 

          from the factory to ensure legality. Contact Competition Director if you need clarification to this rule.




12.1.  May run up to a 500 2 Barrel Carb.

12.2.  Only stock production engines allowed. Chevrolet 362 cubic inch maximum, Ford 358 cubic. MASS Street Stock Engine

          Combinations Allowed per MASS Rulebook. Chrysler 360 cubic inch plus overbore.

12.3.  No polishing or coating inside of block.

12.4.  Overbore of .060 + normal wear permitted.

12.5.  Aftermarket replacement rods allowed.

12.6.  Steel replacement rods allowed.

12.7.  Only solid steel connecting rods permitted. No polishing or machine work will be permitted.

12.8.  Solid steel connecting rods may not be lighter than stock.

12.9.  Flat top or dish 3 ring pistons permitted. Piston must not extend above top of block.

12.10.  Crankshaft with stock stroke must be retained. Minimum weight 50lbs.                                                             

12.11.  Crankshaft must not be knife-edged. No excessive machining or grinding other than balancing.

            No drilled main journals. Subject to template inspection by Competition Director.

12.12.  Wet sump oil system only.

12.13.  Enlarged oil pan allowed. Kick outs will not be permitted between the bolt holes flange and the top of the added sump.

            Oil pan 4” minimum ground clearance.

12.14.  No electric fuel pumps allowed.

12.15.  Aftermarket valve covers allowed. Aftermarket pulleys allowed.

 12.16. Engines under 310 cubic inch may be allowed a 390 4 barrel. Check with series officials.


13.     HEADS


13.1.  Stock OEM production steel heads only. No Vortec heads on built engine.

13.2.  Stock Replacement or SR Head allowed with a 25lb. penalty.

13.3.  NO modifications, no porting, polishing, or angle milling. No grinding of any kind. Three angle valve job ok as per

          Speedway rule. One cut below valve seat, to bottom of valve guide. Do not radius or blend bottom of cut below valve seat.

13.4.  Chevrolet 58cc min; Ford Cleveland 52cc; Ford Windsor 56cc; Chrysler 62cc min

13.5.  OEM valve size for cylinder head required. Steel valves required.

          Valve size maximum: Chevrolet 1.94 intake 1.50 exhaust                                                                             

                                             Ford Cleveland 2.05 intake 1.65 exhaust                                                              

                                             Ford Windsor 1.89 intake 1.60 exhaust                                                           

                                             Chrysler 1.90 intake 1.60 exhaust


14.     CAM SHAFT


14.1.  Hydraulic or flat tappet cam and OEM diameter lifters with a maximum lift of Chevy .480, Ford .512, Dodge .500

          at valve with valve lash as ran in race. Lift will be measured at the retainer.

14.2.  Any steel type timing chain allowed.

14.3.  OEM or Aftermarket Valve Springs will be allowed on built engine.

14.4.  Screw in studs and guide plates permitted with any ratio roller rocker arms allowed.

14.5.  Stud girdles are permitted. Poly lock allowed.


15.     INTAKE and SPACER

15.1.  Cast Iron two-barrel intake or Edelbrock performer aluminum intakes. Chevrolet  #210, Ford Windsor #2181,

           Cleveland #2665, #2750 and Chrysler #2176 or   P#4532852.

15.2.  No high-performance intake manifolds permitted. Intakes must be speedway approved.

15.3.  No porting, polishing, or grinding will be permitted. Do not touch it.

15.4.  Holley #7448 spacer a maximum ¾” metal spacer No Bevels. Spacer Gaskets .065 max thickness. Must not be coated.

15.5.  Holley #4412 spacer a maximum ¾” metal spacer with 2 holes (max 1.690) centered in spacer with a straight cut.

          No bevels. Spacer gasket .065 max thickness. Must not   be coated.

15.6.  Crate Motors may run up to a 1-inch-thick aluminum spacer with no bevels. Must not be coated. All carburetors and

          spacer plates must meet speedway specifications.




16.1.  Up to a 390 4-barrel carb or up To A 500 2-barrel carb on 602 or 603 crate engine and built engines can run up to a

          500 2-barrel. A LMSC, 604 engines may run up to a Holley 2bbl carb “450”. A “450 carb adapter blend ring 3/8.”

16.2.  No polishing, grinding or machine work allowed on any part of carburetor.

16.3.  No alterations except choke hardware may be removed and all vacuum ports must be plugged. Any bowl or

          metering block may be used. Base plate must not be altered  in shape or size.

16.4.  Boosters may not be altered in any manner including size, shape, or height of model #.

16.5.  Any attempt to pull outside air other than through the venturi is not permitted.




17.1.  Round air cleaner element minimum of 12 inches; maximum of 17 inches.

17.2.  Element must be minimum of 1 ½ “and a maximum of 4 inches in height.

17.3.  Dry type paper element only. No cold air boxes or cowl induction allowed.

17.4.  No tubes, funnels or anything which may control the flow of air are permitted.

17.5.  Air cleaner base must not be above choke horn.



18.1.  OEM standard production automatic, manual transmissions permitted.

18.2.  OEM steel clutch and flywheel over 33 lbs. receives a 50-pound weight break.

18.3.  A multi disk clutch is allowed. OEM clutch and flywheel receives 50-pound weight break.

18.4.  Hydraulic clutch control permitted.

18.5.  Must have steel bell housing that is speedway approved.

18.6.  Drive shaft must be of magnetic steel only. Drive shaft must be painted white with two safety loops attached to

          the bottom of car.

19.     EXHAUST


19.1.  Regular Headers (4 into 1) will be permitted. No stepped headers. No 180 allowed.

19.2.  Cast iron manifolds permitted.

19.3.  All LH exhaust pipe must exit behind the driver.



20.1.  Engines may be interchanged from one body manufacturer to another.

20.2.  Engine must be centered in chassis. #1 spark plug in line with upper ball joint. Ford max 2 inches back from #1 spark plug.

20.3.  Minimum crankshaft height is 12”, from the center of crank pulley to the ground.



21.1.  Aluminum radiators permitted. Any radiator allowed.

21.2.  Overflow hose recommended.

21.3.  Antifreeze is not permitted.



22.1.  HEI Ignition allowed for base weight. MSD allowed. No digital ignition, no digital tacs, no 16v systems.

22.2.  Aftermarket or OEM HEI distributors permitted. All Distributors can be locked up or welded in Crate or Built.

22.3.  Only 1 coil permitted.

22.4.  Only one 12-volt battery permitted.

22.5.  No adjustable timing controls.

22.6.  No open-ended wiring in driver’s compartment.

22.7.  Traction devices are not allowed. No computerized systems are allowed.

22.8.  All ignition systems must be acceptable to speedway officials.

23.     FUEL and FUEL SYSTEM


23.1.  Race fuel required. No other mixtures of any kind.

23.2.  All Fuel must pass Speedway Fuel specifications. Fuel must be same color. Fuel cells are recommended.

          Must be securely strapped down with no less than 1/8” steel straps. Fuel cell must be vented high and to the left side.

23.3.  The maximum capacity allowed is 22 gallons.

23.4.  Fuel cells must have 8” minimum ground clearance with car placed on 4″ blocks.

24.     WHEELS and TIRES


24.1.  Maximum width 10” on all 4. 15” Steel wheels only.

24.2.  Air bleeders will not be permitted. No chemical tire treatment allowed.

24.3.  Tires used for qualifying and race must be approved by the speedway.

24.4.  Any car tires from any source other than speedway tire building will be disqualified.

24.5.  WCS will utilize a four scuff tire program.  Compound to be determined.

25.     WEIGHT


25.1.  3100 lbs. base weight with driver. No tungsten allowed.

25.2.  Cars With OEM Front Clip and OEM Floorboard Chassis receive 100lb weight break.

25.3.  Cars With OEM Front Clip Fab Chassis or 5×5 Equipped Cars receive 50lb weight break.

25.4.  55% left side maximum weight percentage on all cars. Weights Must Be on back of hood.

25.5.  All cars will be weighed with driver in a driving position. Cars may gas up after race.

25.6.  All lead weight must be added to chassis securely.

25.7.  602, 603 Crate engine equipped cars get a 50-pound weight break

25.8.  Any car that runs a 350 carb on any motor combination receives a 100 lb. weight break.





26.1  These rules are subject to amendments for competition when ample notice has been given by the speedway.

         Any car that does not conform to the above rules may be allowed to compete with a weight and/or restrictor plate at the

         Competition Director’s discretion. This decision can be made at any time to give someone a chance to race at the

         Wake County Speedway.

26.2  Older NASCAR late model stock perimeter chassis cars may be approved for competition. Competition Director’s

         decision on weight penalty is final.

26.3  Up to a 390 4-barrel carb or up to a 500 2-barrel allowed on crate engines.  LMSC Built Engines, 604 or built engine with

         less than 62cc head engines may run up to a Holley 2bbl 450 Carb. If You decide to run a 350 carb on any motor

         combination you  can have a 100 lb. weight break. Tech Man Decision is FINAL! Your weight must be written on the

         back of the hood.



Revised 02/16/2024, 12:40 a.m., awt



Technical Bulletins
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