1. No high performance parts allowed
except as stated.
2. Wheel base 108. min.
3. Stock suspension. May run
aftermarket springs, 5 in. A-frame on top side only, top
mounts must be in stock location, none adjustable .Lower “A”
Frame must be stock for the car.
Leaf spring cars - shackles only.
Engine - Set back,
ball joint in line with # 1 plug max
Bore and Stroke
Stock bore - +.060 maximum.
Stroke - stock for CID of engine. Crankshaft may be
aftermarket, must be stock appearing, and weigh no less than
Rods: must be stock
length for CID of engine. Aftermarket rods must be equal in
weight or greater. Pistons: flat top or dished only. No
Camshaft: 480 lift Hydraulic flat tappet cam only.
Carburetor Claim price $300
(A). MUST RUN
TRACK RESTRICTOR PLATE – 1in. spacer plate max. No taper
Intake: No porting or polishing.
Compression: 180# maximum. Will be checked with all plugs
removed and throttle wide open until needle stops.
Heads: Stock heads and S/R heads. Must be stock diameter
valves. Small Block Chevy 1.940 intake, 1.500 exhaust. Small
block Ford 1.940 intake, 1.600 exhaust. May be aftermarket
valves: solid steel only. Valve springs must be stock
diameter. No porting, polishing, grinding, etc. May have
pinned or screw in studs and guide plates. Roller rockers
No ignition boxes
J. May run aftermarket oil pans.
4. Rear End - Locked rear ends only.
Any factory type rear end. Must be mounted with stock
replacement brackets for the car that it is under. Southwest
Speedway or equal. May be floater axle. May use rear disc
brakes, calipers and hubs, must be same as factory no alum.
(Example: front GM can be used on rear.) REAREND must
be in factory stock position. Mounting points shall be the
same as the factory for the type of car that the rear end is
being used under. No light weight components allowed in the
5. Transmission - straight shift legal.
Must have all gears and be produced by manufacturer of car.
Automatics must have working torque converter.
Functional torque converter.
6. Clutch, pressure plate, and flywheel
must be steel factory type minimum weight of 34lbs with no
tolorence. No modifications.
May be aftermarket. 10 ½” minimum diameter clutch.
7. Shocks –Steel body, no gas shocks. A
claim price of $80.00. No rebuildable shocks. Front shocks
may be mounted outside of bucket; rear shocks in stock
location. Wedge bolts allowed
8. Brake pedals in stock location.
9. Wheels - 10in steel wheel max. Bead
Lock allowed on right rear and right front.
ALL CARS MUST HAVE DRIVESHAFT LOOP
10. Tires - no racing or recapped
tires. 275 x 60 maximum. No chemicals allowed.
11. Bodies - Must be full bodied cars
or truck factory stock appearing
only. Any fabricated
body must have all body lines. No flat sides will be
allowed. MUST HAVE
FACTORY STEEL TOP, stock appearing nose and tail piece, and
rear must be closed in.
cars must have factory full floorboard and firewall, front
and rear, no custom built floor boards. Patching must be
same gauge as original. No custom cock pits, floor board
must be exposed ,cannot be boxed in.
Spoiler - 8in. rear and sides. Two side spoilers max.
C. Bumpers - No sharp edges.
12. Weight - 362 and under 3200 lbs.
13. Fuel tanks - A mandatory firewall
between driver and fuel tank.
14. Headers - .no tri y
15. Frame section in front of A Frame
mount and behind rear suspension mounts may be replaced with
tubing due to rust or excessive damage.
16. All glass and flammable parts must
17. Roll bars - All cars must have a 4
point roll cage. 4 bars on driver’s side, 2 in passenger
side (1 ½” minimum OD black pipe.)
18. 1” diameter lug nuts minimum. Must
have 5 lug studs and lug nuts per wheel.
19. Safety - Must have working fire
extinguisher, driver fire suit, helmet with shield and
Mufflers are required
21. Track reserves the right to adjust
rules to keep racing equal.
2 consecutive wins
- must start in rear of heat.
3 consecutive wins - must start in rear