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The rules and/or regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish minimum acceptable requirements for such events. These rules shall govern the condition of all events, and by participating in these events, all participants are deemed to have complied with these rules. NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM PUBLICATIONS OF OR COMPLIANCE WITH THESE RULES AND OR REGULATIONS. They are intended as a guide for the conduct of the sport and are in no way a guarantee against injury or death to a participant, spectator or official.

The race director shall be empowered to permit reasonable and appropriate deviation from any of the specifications herein or impose any further restrictions that in his/her opinion do not alter the minimum acceptable requirements. NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM SUCH ALTERATION OF SPECIFICATIONS. Any interpretation of deviation of these rules is left to discretion of the officials. Their decision is final.

The Management of Huntsville Speedway

Safety Rules
1. Apparel – See General Rules

365 cubic inches or less = 2,950 lbs.

366-385 cubic inches = 3,100 lbs.

386 or larger = 3,200 lbs.

602 Crate = 2,900 lbs. (Subject to Change)

Any car that has the stock firewall and floor pan complete will be given a 50 lbs. weight break.

Any car with the motor set back further than the rule allows with be required to carry not an extra 50 lbs., but 50 lbs in front of the flywheel. No further than 4”.

Any car running with a non factory steel roof will be required to weigh an extra 25 lbs.

Any car running a body that is more than 75% aluminum panels will be required to add an extra 25 lbs.

Any car running with a complete fiberglass body will be required to weigh an extra 100 lbs.

Any car that might not have a complete fiberglass body, weight penalties will be assessed by HS officials.

Any car with stock rear upper & lower trailing arms and no Panhard will be allowed 56% left side.

1. Maximum 55% left side weight.

2. May add weight boxes to the outside of the frame rails with safety bolts in the front and rear.

3. All weight must be painted white with car number on it.

4. 50 lbs penalty for under slung chassis.


Competing Models

1. American made cars 1964 and up.

2. Minimum wheelbase of 106”.


1. Full magnetic steel body. May use aftermarket front and rear bumper covers.

2. Fenders and quarter panels may be cut for tire clearance. Front inner fender panels may be removed.

3. All hoods, trunks, and rear hatches must be securely fastened. Doors must be welded closed. No under panning permitted.

4. Front ¾ of air cleaner can not be expose to outside air.

5. Must have stock grill or screen mesh wire.

6. Minimum roof height 48”.

7. Maximum spoiler height 6” x 60” wide.

8. Minimum body clearance 4” to ground.

9. Must have full front lexan window 3/16 of inch minimum, side and rear windows 1/8 of inch minimum recommended.


1. Front spindle/axle/ball joint assemblies may be reinforced, or heavier duty unit from another passenger car installed.

2. Frame may be reinforced. No notching or alteration to mainframe rails.
3. Any style sway bar other than a splined bar. Can run eye bolts on frame.
4. Wedge bolts permitted.
5. May run after market upper A-arms and upper A-frame mounts.
6. Lower control arms must be stock AND must be in stock location with no modification of any kind.
7. Steel non-adjustable shocks ONLY. $75 per shock claim rule.
8. Minimum frame height is 6 inches.
9. May run front loop bar tied to cage with one bar in front of A-arm.
10. Driver must have racing seat in car.
11. Must have minimum 2-pound fire extinguisher with a gauge and a quick release mounted securely in car within reach of driver while belted in car.
12. Car must have (4) point roll cage with diagonal bar behind driver with (3) roll bars in left door & (2) in right side door minimum.
A. Top of roll cage may extend to rear frame behind fuel cell.
B. Roll bars must be 1 3/4 inch diameter and .090 tubing. Gussets required in left door bars. Bars must be padded in driver’s area (legs & head bars & side bars).
C. Front hoop bar must not extend past radiator support.
14. Rear view mirror allowed.
15. Left side window net is required. Must have a quick release from the top.
16. May run solid engine and transmission mounts.
17. Fuel cell required, 22-gallon maximum. Must be mounted in a safe and approved manner, securely strapped by placing two (2) straps long ways and two (2) straps crosswise around tank and bolting straps to trunk floor. Straps 1/8 inch x 1-inch thickness in width. Must be mounted in center. Bar protecting fuel cell must be no lower than 1 inch below fuel cell. Bottom of fuel cell must be no lower than 8 inches from ground. Mounting must be approved by the HS track official.
A. Must have rollover check valve.
B. Must run Huntsville Speedway fuel. No fuel additives allowed.
18. All wheels must have four working brakes. Brakes are to be single piston caliper Stock style. No Aluminum.


1. Stock type 2 or 4 eyebrow flat top or dish pistons (cast, forged pistons or hypereutectic pistons).

2. Solid or hydraulic lifters allowed. No mushroom lifters allowed. No roller cam/lifter allowed.

3. Stock cast-iron head as available from manufacturer (Dart S/R head allowed). No porting or polishing. 55cc (+/- 1cc) valve sizes (1.94 and 1.50 allowed for Chevrolet). Chrysler, Fords stock size valves only. Screw-in studs and guide plates allowed. Valve seats: Three-angle cut on valve seats will be permitted. The third angle of a three-angle valve job cannot exceed ½ of an inch below valve seat. Ford: see official for cylinder head cc size.

4. Aluminum or cast iron intakes allowed. (No porting or polishing).

5. Crankshaft height 12 inches.

6. Only one non-adjustable one-piece solid aluminum carburetor spacer permitted maximum ¾” in height, with one paper gasket per side not to exceed .065” in thickness. Spacer must have two holes with openings cut perpendicular, matching carburetor base. No taper or beveling permitted.

7. No angle plug heads. Ford and Chrysler see official.

8. Headers may be run with a Holley 500 cfm# 4412. (No modifications allowed). Down draft header only. No 180-degree headers. NO Iron Lung Type Header

9. Quadrajet carburetor will be allowed as long as it is accompanied by stock manifolds, and a 100 lbs. weight penalty. Ford and Chrysler see official.

10. Full roller rocker arms allowed. Stud girdles allowed.

11. Stock automatic transmissions are allowed as long as all gears are working and torque converter is functional.

12. Must have approved safety bell housing. No aluminum bell housing.

13. Stock production type rear-ends. Locked rear-ends are permitted. 9” Fords are permitted. Upper rear control arms may be altered. Floater hubs are permitted. Panhard bars and rear sway bars allowed. NO Lightweight or gun-drilled axles. NO aluminum rear axle parts.

14. Aftermarket top links allowed. Can not be any longer than 18” measuring from center to center.

15. Rear end brackets on frame side must remain in stock location, brackets on rear end allowed a maximum of 2” slot.

16. Must have stock ignition. No dual points or racing ignition (No MSD dist.).

17. Number one spark plug must either be lined up with or in front of left side upper ball joint. If the motor is setback is further than this rule states the car is required to bolt fifty pounds in front of the flywheel. No more than 4” setback will be allowed.

18. On non-crate engine, cold air boxes are not permitted.

Crate Engine
1. 602 with 650 carb. Allowed must meet stock GM requirements per GM specs.
1. Transmissions must have at least two working forward and one working reverse gear.
2. Clutches may be of the racing type but may not be any smaller in diameter than a 7 and ¼ inches.
Tires and Wheels
Hoosier 890 8”treaded rights
Hoosier 880 8” treaded lefts


Leave comments on your thoughts on the rules. Negative comments will be deleted.

Comments (6)

  1. shawboy16

    Most of this is good, except I think we need to weed the cars out that have motors set back further than #1 spark plug and the underslung cars, Also I think it would be great to go to the American Racers that Sayre run for a tire that way you have those cars that can come run here as well and there is a lot of them and I’ve talked to some of the guys already and they like that idea. Need to specify more on the rear end like 4link or 3link, and allow the 180 degree header? thats all I really have, I just want it to be where we can run at multiple tracks because Nashville has the All American 400 weekend and Sayre has The King of Dixie weekend and then theres the Snowball Derby. But really happy the place is being opened again, anything is better than nothing.

  2. shawboy16

    Also try to have a talk show on Sunday nights that speaks to some of the racers and talks about what happend at the track that weekend and what is going on the next weekend and also have the races rerun on tv on a local channel sometime during the week!

  3. Acallaway6

    I agree with running the American racers, it makes it more affordable for everyone. I disagree with underslung and engine setback further than #1 sparkplug. I think 3link or 4link should be legal. No Alum heads. no 180degree headers. no dry sump. I look forward to racing Friday nights at Huntsville again, Thank you.

  4. RolyPolyMan

    Friday or Saturday night?

  5. Acallaway6

    In addition, I would like the use of the cone during a caution. They would take a cone and sit in the middle of the track and as you came around under caution you could either take the inside or the out side lane. Every restart was double file. It made it more exciting and was just fun to watch. Thank you, Alan Callaway.

  6. norm layton

    I have a metric chassis it meets all the rules.But it has a 1957 body on it can I come and race

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