ACCEPTABLE VEHICLES -
All North American mid and full size rear
wheel drive cars. Excluded vehicles are
compact cars, sports cars, mustangs, vans,
sport utilities, station wagons, and rear
engine cars. If there is any question as to
whether a car is acceptable, the car builder
should contact the track prior to buying or
building the car. 106 wheel base min. REAR
WHEEL DRIVE ONLY!!
CARBURETION - Electric
fuel pump allowed only if it came stock.
Cannot be mounted in driver’s area.
Fuel pump must be
connected to kill switch. Production fuel
injected cars may be changed to carburetion.
Stock factory carburetors only. No big block
carburetors allowed. Carburetors will be
checked for venture size. Two or four barrel
manifold (stock) no high performance. Can
use 1/2 plate to mount 500CFM 2 barrel Holly
or Rochester 4 barrel Carb.
BODY AND FRAME - Body
must remain stock. Must have stock factory
frame (or unibody) only. All glass and
flammable materials such as interior door
panels, dash components and seats must be
removed. All chrome must be removed. The
windshield MUST be replaced with a screen.
Aluminum body and cockpitting allowed. All
frames must be in good shape. All rust
repairs must be done in an acceptable manner
using 1/8 "or thicker plate steel and
following original contour of the frame.
ROLLCAGE - A roll cage
must be installed with at least 3 bars on
the driver’s side and 2 bars on the right
side. Outside skid rails allowed. A roll bar
MUST be placed in the center of the
windshield following its contour. All roll
bar joints must be welded shut. Rear roll
bar must form an X behind the driver’s seat.
Roll bars may extend into the engine
compartment and trunk. Roll bars must have a
thickness of .095 inches. No exhaust tubing.
American or Hoosier M100 8” 26.5” and
27.5” or HARDER COMPOUND ONLY.
WHEELS - No aluminum
wheels. Wheels must be reinforced by, adding
larger washers or oversized nuts if using
stock wheels. Racing wheels allowed 8" max.
7" or 8" rims only. Racing wheels must have
larger studs and 1" lug nuts. Larger studs
and bolts are allowed and encouraged for all
wheels for safety reasons. Bead locks
BRAKES - Brakes must
be in perfect working condition. NO BRAKES
IS NO EXCUSE FOR AN ACCIDENT. OEM brakes and
brake systems on all four corners with no
modifications to stock OEM brake system
except that emergency brakes may be removed.
Aftermarket brake pedals or master cylinders
FUEL CELL - Fuel cells
are mandatory. If it leaks you will not be
allowed to race, NO EXCEPTIONS!! Gasoline
fuel must be used. No other fuels
REAR END - Rear end
must be locked, ford 9" rear with metric
stock mount allowed.
NATIONAL REAR ENDS .
ENGINE - Max 350 cid
Chevy, 351cid Ford, 360 cid Mopar. Max
overbore is .040. STOCK Crank and connecting
rods only. Stock cast iron heads only, no
angle plug heads for GM. Flat top or dished
pistons only. No porting, polishing, gasket
matching, machining, or milling of block or
heads permitted. Max compression 175lbs,
with full cranking battery, no plugs, and
throttle fully open. Hydraulic cams only,
480 max lift. Engine must be same
manufacturer as chassis/body. No 95 or newer
vortec engines or heads. No performance
heads. Double hump heads allowed. No roller
cam, lifters or roller tip rockers. Stock
rockers steel stamped only. Internal parts
must remain stock, NO dome pistons. Stock
ignition system only. Stock cast iron
exhaust manifolds only. 2" OD pipe only exit
behind driver, with two pipe hangers per
pipe ( any exhaust pipe that falls off
during a race will cause a one position lost
to that car).
Inspection hole to inspect thru oil pan.
MUST HAVE FACTORY CAST NUMBERS! (602 sealed
crate engine with two barrel carb and cast
iron stock manifold will allowed)
engines are to remain sealed from factory.
The original factory seal must remain
unaltered. The GM Engine must remain
unaltered in any way.
Transmission must be OEM automatic with
stock torque converter or stock single disk
clutch and flywheel on stock OEM standard
transmission. All gears must work.
Transmission may be auto or standard MUST BE
STOCK!! Standard must have 1" hole in bottom
of bell housing in line with clutch. Auto
must have working torc convertor and all
gears. Stock clutch and fly-wheel only.
WEIGHT- Car must weigh
3300 lbs. with driver in it, NO exceptions!!
SPRINGS AND SHOCKS -
Spring may be cut. No high performance
racing shocks and spring allowed. Springs
and shocks must be stock appearing and in
have a claim rule.
PROCEDURES: (No driver may claim same driver
more than once during current calendar
be made immediately after feature is
completed to TECH inspector with claim being
Follow all claim procedures and
eligibility requirements. Penalty for shock
claim refusal is $1,000 and 30-day
Any eligible driver finishing fourth
on back in feature that is scored on the
lead lap can claim any shock for $50 from
any of the top three drivers. Each shock
claimed is $50. (ie.. 4 shocks is $200)
Should any driver voluntarily
withdraw a legal shock claim, he/she will be
charged with a claim with no penalty.
SUSPENSION - Steering must remain stock.
Quick release steering wheel and column
allowed. Stock suspension must remain stock
appearing and in stock position.
TIRE CAMBER RULE -
Negative camber can be added to the right
front wheel for safety purposes.
STOCK RULE - Other
than the safety requirements or other
modifications specifically listed above the
car must remain completely stock. The frame,
wheels, tires, engine, suspension,
transmission and body must remain stock.
THE EMPHASIS ON THIS CLASS ON STOCK!!! It
is NOT intended for those that want to
OUTSPEND the competition. Any removal of
factory identification marks will make the
SAFETY - Cars must
meet all General Safety Specifications in
addition to any safety requirements specific
to Pure Stocks.
WINDOW net is
mandatory along with RACEIVER (frequency