2002 LATE MODEL STOCK

GENERAL DESCRIPTION

2800 pounds, 58% left side weight, fiberglass/aluminum template body, 4-barrel carburetor with restrictor plate, V-8 small block engine 11.0 :1 compression ratio, stock or NASCAR spec. front stub, offset or perimeter chassis. No wide 5 wheels.

ELIGIBLE MODELS

A)BODY
a.Must have stock appearing bodies 1996 or newer and are subject to approval.
b.No carbon fiber body parts permitted.
c.Must meet template dimensions (see specification sheet).
d.Rear spoiler permitted with maximum dimensions of 5 inches tall and 60 inches wide for cars, 7 inches tall and 60 inches wide for trucks.
e.Ground clearance is 4 inches minimum for side frame rails and body components with driver in car.

B) WINDOWS
a.Must be equipped with a full lexan windshield and rear window, which are sufficiently braced.
b.Glass/lexan installed in door windows not permitted.
c.Lexan installed in rear quarter windows permitted.
d.Lexan vent panel at front of door glass opening permitted. Maximum of
8 inches measured from front to rear.

C)INTERIOR
a.Must have a completely enclosed interior and sealed metal front and rear firewall.
b.Rear view mirror must not extend outside of body.

D)WEIGHT

1.Minimum total weight is 2800 pounds after race with driver.
2.Maximum left side weight is 58% of total weight.
3.All ballast must be in block form of five pounds minimum, painted white, have vehicle number on it, and be securely fastened. A FINE OF $5.00 PER POUND WILL BE ASSESSED FOR ANY LEAD FOUND ON TRACK.
4.Weight penalties may be added to any vehicle not meeting rule requirements.

ENGINE

A)ENGINE LOCATION
a.Engine setback is measured from centerline of number 1 spark plug hole to centerline of upper ball joints.
i.All competing models using GM engine will be permitted a maximum engine setback of 2 inches.
ii.All competing models using Ford or Chrysler engine will be permitted a maximum engine setback of 4 inches.
b.Centerline of crankshaft must be laterally located within 1 inch of the midpoint of a line projected between centerline of upper ball joints.
c.Centerline of crankshaft must be located at least 10 inches above ground plane.

B)ENGINE SIZE AND CONFIGURATION / ENGINE BLOCK
a.Maximum compression ratio is 11.0 to 1.  NO TOLERANCE.
b.Maximum of 358 cubic inches, any bore, any stroke, NO TOLERANCE
c.Only standard cast iron engine block permitted.
d.No after market engine block permitted.

C) OIL PAN / OIL SYSTEM
a.Dry sump system not permitted.

D)CYLINDER HEADS
a.Only unaltered stock cast iron production heads limited to 2 valves per cylinder permitted.
b.No port matching or flow work of any kind permitted.
c.No angle cutting of heads to block mating surface permitted.
d.No offset drilling head stud or bolt holes permitted.
e.3 angle valve job permitted.
f.Combustion chamber may be polished.
g.Chevrolet part number 14011058 and 10134392 (casting number 14011034)
head or any cast iron OEM head permitted on GM block.
h.Chrysler W-2 cast iron heads permitted on Chrysler block.
i.Any Ford stock production cast iron heads permitted on Ford block.
j.Only steel valve springs permitted.

E) VALVES
a.Must be identical in appearance and construction as OEM.
b.No air directional devices on any of valve surface permitted.
c.No titanium valves permitted.
d.Valve stem diameter .34375 inch (11/32 inch) minimum.
e.Undercutting valve stem diameter from head of valve to bottom of valve guide is permitted; .3125 inch (5/16 inch) minimum.
f.Maximum valve sizes as measured across face of valve are as follows:

INTAKE EXHAUST
General Motors 2.020 1.625
Ford "Windsor" 1.8437 1.546
Ford "Cleveland" 2.046 1.656
Ford M-6049-N351 2.020 1.600
Chrysler 2.020 1.625

F) CRANKSHAFT / HARMONIC BALANCER
a.Only steel or cast iron production design crankshaft permitted.
b.After market crankshaft is permitted.
c.Any harmonic balancer permitted.

G) CAMSHAFT / VALVE LIFTERS / ROCKER ARMS
a.Any flat tappet camshaft using solid steel or hydraulic valve lifters permitted.
b.Roller or mushroom valve lifters not permitted.
c.Rev-kits not permitted.
d.Roller rocker arms permitted.
e.Lifters must be OEM diameter for block being used.

H) INTAKE MANIFOLD
a.Intake height (including restrictor plate, spacer plate and gaskets) is measured from carburetor mounting surface to top of engine block, front and rear. Maximum dimensions are 6 inches for GM and Chrysler; 7 inches for Ford.
b.Port openings may be altered up to 1 inch maximum into runner to match ports in cylinder heads. No porting or polishing permitted.
c.No alterations or devices added to enhance airflow through restrictor plate permitted. No venturi tubes permitted above or below restrictor plate.

I) CARBURETOR / RESTRICTOR PLATE / SPACER
a.Only 1, 4-barrel carburetor is permitted. No variable venturi carburetor permitted. NO MODIFICATIONS
b.Must use track restrictor plate with a maximum of 4 holes, each with a maximum diameter of
1.125 inches for regulating air and fuel into intake manifold. No chamfering or tapering of restrictor plate holes.
c.Minimum thickness of restrictor plate is .060 inch.
d.Restrictor plate must sit directly on top on intake manifold. May use a gasket with a maximum of .060 inch thickness in between restrictor plate and intake manifold.
e.All fuel and air entering engine must enter through carburetor and restrictor plate
f.Any aluminum open spacer with a maximum thickness of 2 inches may be used. Spacer opening must be perpendicular to base of carburetor with no taper or bevel.

J) CARBURETOR AIR CLEANER / AIR INTAKE
a.A dry type round air cleaner element will be required. It must have metal top and bottom with a diameter of 12 inches minimum, 17 inches maximum and a maximum height of 4 inches.
b.No spacers will be permitted between top of carburetor and air cleaner base.
c.All air must be filtered through air cleaner.
d.No hoses, funneling devices, or devices designed to get more air into engine will be permitted (no carb hat).
e.No air intakes facing forward permitted.
f.Cowl type air intake system permitted. An opening 2-1/2 inches by 20 inches can be cut in hood behind carburetor air cleaner to allow fresh air to carburetor. May use a deflector at center of leading edge of windshield directly under cowl air opening in hood to the size of 2 inches down, 2 inches forward by 20 inches in width. i.GM model vehicles; opening must be located 11 inches rearward from center of carburetor.
g.Ford / Chrysler model vehicles; opening must be located 1 inch forward of rear edge of hood.

IGNITION / ELECTRICAL SYSTEM

1.Crank triggered or multiple coil ignition systems not permitted.
2.Dual Ignigitions are permitted3.Onboard electronics such as but not limited to lap timing devices, suspension monitors, computers, torque limiter ignitions, and other electronic devices not permitted.

EXHAUST

1.Headers may be used but must be collector type.
2.Exhaust exiting under vehicle must exit behind driver.
3.Exhaust exiting through side of vehicle must exit behind center of passenger side door, front to rear no more that 1 inch outside of body.
4.Must be sealed tight and securely mounted.

DRIVE TRAIN

A) CLUTCH / FLYWHEEL / BELLHOUSING
a.High speed multiple discs clutch is permitted.
b.Clutch assemblies must be mounted inside bellhousing.
c.Only steel, heavy-duty cast iron, or after market aluminum bellhousing permitted.
d.Must be capable of being put into and taken out of gear with engine running.
e.Must have a flywheel with a starter ring on it.

B) TRANSMISSION / DRIVE SHAFT / REAR END
a.3 or 4 speed transmission must be OEM production manufactured that is
cataloged through regular dealer channels.
b.Automatic transmission is permitted, but cannot use a torque converter.
c.5 speed, internal clutch transmission, or quick-change transmission not permitted.
d.Transmission must have at least 2 forward gears and reverse gear in working order.
e.Transmission must bolt directly to rear of bell housing, which bolts directly to rear of engine block.
f.Open tube rear end not permitted.
g.Independent rear axles not permitted.
h.Quick change rear end permitted, but only with steel axle tubes.
i.Full floating rear axles recommended.

C) WHEELS
a.Only steel racing wheels with a maximum width of 10 inches permitted.
b.Minimum weight is 17 pounds per wheel.
c.Bead locks not permitted.
d.Wide 5 wheels not permitted.

D) BRAKES
a.Only steel or cast iron brake rotors permitted.
b.Carbon fiber brakes not permitted.
c.Brakes must operate all 4 wheels.

WHEELBASE / TREAD WIDTH

1.Minimum wheel base permitted is 104 inches.
2.Maximum tread width permitted is 64 inches measured at center of tire tread.

FRAME

1.pproved spec. front stub is permitted.
2.Must have OEM factory automobile frame from front of steering box to lower portion of kick up.
3.Frame rails may be interchanged between corporate manufacturers.
4.Frame rails must be a minimum of 10 inches in circumference with a minimum of .125 inch wall thickness.
5.Front cross member may be altered for oil pan clearance. Distance between front frame rails must be OEM dimensions for make and model of front frame rails.
6.Frame rails may run under rear axles but must maintain 10 inches in circumference past rear axle tubes.
7.Ground clearance is 4 inches minimum for side frame rails with driver in vehicle.

SUSPENSION / STEERING COMPONENTS

1.Lower A-frames must be stock production for type of stock front stub and must mount is stock location. May only be altered for non-stock ball joints, bushings, shock mounts, sway bar mounts.
2.Upper A-frames may be stock or tubular type and frame-mounting brackets may be relocated.
3.Spindles may be stock or after market.
4.Altering spindle steering arms and drag link to accept spherical type tie rod ends permitted.
5.Altering spindle steering arm and pitman arm lengths not permitted.
6.Weight jacks permitted. No hydraulic weight shifting devices permitted.
7.Coil over eliminators or coil over shocks/springs not permitted.
8.No adjustable suspension components or weight shifting devices that can be adjusted inside driver compartment permitted.
9.Must have a collapsible steering shaft or use at least 2 universal joints, which are not mounted in same plane.
10.Must use an approved steering wheel disconnect.
11.Rack and pinion steering not permitted.

12.SPRINGS
a.Either rear coil or leaf springs permitted.
b.Altering rear spring position permitted. No transverse coil spring mounts permitted.
c.Coil springs must be a minimum of 4-1/2 inches in diameter.
d.Chrysler may use front coil springs, but must comply with all other suspension rules.

FUEL / FUEL SYSTEM

1.Track racing fuel is permitted. If fuel other than track fuel is used, it can match, but must not exceed testing results of track fuel.
2.No fuel additives permitted.
3.Only OEM type mechanical fuel pumps mounted in stock location permitted. No electric fuel pumps permitted.
4.Fuel lines must be of armored hose, or installed in metal conduit, or steel fuel line and must not be routed through driver compartment.

FUEL CELL

1.Mandatory with a maximum of 22 gallons including fill spout. Fuel cells with a plastic or rubber bladder is required.
2.Must be encased in a container of 20 gauge steel or 1/8 inch aluminum. In addition, must have 3, 1/8 inch steel protection plates on rear and sides of fuel cell that attach to square tubing, straps, or frame of vehicle.
3.Fuel cell height is measured from ground to any point on bottom of fuel cell. Minimum of 11 inches permitted.
4.Must be located between frame rails behind rear axle.
5.Must have drag loop extending below bottom of fuel cell.
6.Must have check valve on vent tube or cap.

ROLL CAGE

1.Must be constructed of 1-3/4 inch diameter by 13 gauge (.095 inch) carbon steel round mechanical tubing.
2.Must be welded to frame of vehicle in no less than 6 places. Cannot be welded to body.
3.Must have a 3/16 inch inspection hole in 1 main upright.
4.Bends must not have any kinks.
5.Must be kept inside of vehicle.
6.All joints must be completely electric welded all around and be slag free.
7.Minimum requirements for all roll cages are as follows:
a.4 upright bars and 3 overhead bars.
b.4 curved horizontal bars in driver door and 3 in passenger door connected by vertical tubing.
c.1 horizontal bar in dash area connecting front uprights.
d.Roof support bar
e.Vent window brace on driver side
f.Tubing to protect driver's feet
g.Rear hoop brace
h.Complete engine compartment and trunk compartment braces are required.

SAFETY EQUIPMENT

1. Onboard fire-out system recommended.
2.Radio communication permitted.
3.A scanner that is programmed to receive the track frequency will be required.
a.Teams with radio communication with the driver; crew chief or driver may have the scanner.
b.Teams without radio communication with the driver; driver must have the scanner.

MISCELLANEOUS

1.Carbon fiber clutch or drive shaft, ceramic valves, or other new high technology, high expense items will not be permitted in competition.
2.Post-race inspection is mandatory for any vehicle directed to the inspection area by officials or any vehicle competing with a weight penalty that finishes the feature race.