COMPETING MODELS: Two-door, American sedan production models, 1982 through 2002. No trucks or station wagons are allowed.

BUICK: Regal 1982 - 1995
CHEVROLET:
Camaro 1982 - 1994
Beretta 1987 - 1996
Lumina 1989 - 1994
Monte Carlo 1995 - 2002
NOTE: 1995 - 1996 CAMARO WILL HAVE TO MEET TRACK INSPECTOR'S MEASUREMENTS TO COMPETE. MEASUREMENT WILL COME FROM STOCK PRODUCTION CÁR. ANY QUESTIONS SHOULD BE DIRECTED TO TRACK OFFICIAL IN CHARGE OF GRAND STOCK DIVISION.

CHRYSLER: Lebaron 1985 – 1993
DODGE:
Daytona 1983 - 1993
Avenger 1995 – 1996
NOTE: AVENGER HAS TO BE A FIVE STAR BODY ONLY !!! AVENGER WILL HAVE TO MEET TRACK INSPECTOR'S MEASUREMENTS TO COMPETE. ANY QUESTIONS SHOULD BE DIRECTED TO TRACK OFFICIAL IN CHARGE OF GRAND STOCK DIVISION.

FORD:
Thunderbird 1983 - 1996
Taurus 1998 - 2002

OLDSMOBILE:
Cutlass Supreme 1982 - 1995

PONTIAC:
Firebird 1982 – 1994
Grand Prix 1982 – 2002
NOTE: SAME RULES APPLY TO 1995 - 1996 FIREBIRD AS MENTIONED IN CAMARO RULES ABOVE.

NOTE: ONLY CARS REGISTERED AS GRAND STOCKS WILL BE ALLOWED TO COMPETE IN GRAND STOCK DIVISION.

BODIES: All bodies must be mounted as per NASCAR Rule Book. Same as LMSC Rule Book. All measurements must be in accordance to LMSC measurements. FLAT HOODS ONLY. (See back of NASCAR Rule Book for measurements.) Exceptions: 1995 Chevrolet Camaro, 1995 Pontiac Firebird, 1995 Dodge Avenger.

WINDSHIELD AND REAR WINDOW: As per NASCAR Rule Book. Same as LMSC Rule Book. Section 20J-3.2.1 and Section 20J-3.2.2

FLOOR PAN: As per NASCAR Rule Book. Same as LMSC. Section 20J-2.1K

FRAMES: Must meet NASCAR Rule Book guidelines for construction and safety. Same as LMSC Rule Book.
Section 20J-11, 20J-11.1, 20J-11.2

GROUND CLEARANCE: Ground to frame clearance will be measured at the closest point to the ground on the left side of the car. Clearance must be at least four (4) inches from the ground.

ROLL CAGE: Must meet NASCAR Rule Book guidelines for construction and safety. Same as LMSC Rule Book. Section 20J-17.4 It is MANDATORY that ALL Grand Stocks have a ONE (1) PIECE, one – eighth (1/8) inch thick, magnetic steel plate installed over the OUTSIDE of the driver’s side door bars. It shall cover the ENTIRE driver’s side door area and MUST BE WELDED to the roll bars. Bolts, rivets, etc to attach WILL NOT BE ALLOWED, nor will holes of any kind be permitted.

WHEELBASE: All cars must compete at a one hundred five (105) inch wheelbase. When measuring wheelbase, one (1) side of car must be the allowable wheelbase measurement. The other side of car must not exceed one half (1/2) inch plus (+) or minus (-) allowable measurement.

TREADWIDTH: A maximum allowable treadwidth of sixty four and one half (64-1/2) inches on both front and rear. A tolerance of one half (1/2) inch between front and rear will be allowed as long as maximum width does not exceed the allowable measurement.

SUSPENSION: All A-frame, trailing arms, springs, sway bars, etc. must meet guidelines set forth in the NASCAR Rule Book. Same as LMSC Rule Book Section 20J-12 thru 20J-12.9. In addition, whatever bushings (ie. steel, synthetic, or rubber) that are used on the right side, must be used on the left side as well.

WEIGHT: All cars must maintain a minimum weight of three thousand one hundred (3100) pounds total weight, with a minimum right side weight of one thousand four hundred (1400) pounds with driver. After race – See Section 20J-2.4 of LMSC Rule Book.

ADDED CAR WEIGHT: Shall comply with Section 20J-2.3 of LMSC Rule Book.

SHOCKS: Koni Shocks ONLY. Part # (Front) 30-1304 and 30-1305, or superceded Part # (Front) 30-7325 or 30-7436. Part # (Rear) 30-1308 and 30-1309, or superceded Part # (Rear) 30-9325 or 30-9436.
The Koni shock listed for use in Grand Stock division shall not be altered, revalved, rebuilt, by the manufacturer or any individual. Shocks and internal components are subject to inspection by track officials at any time. Track officials will use a shock absorber provided by Koni as a guide in determining whether a competitor's shock conforms to the specifications provided by Koni.
ANY VIOLATION OF THIS SHOCK RULE SHALL RESULT IN THE LOSS OF ALL POINTS ACCUMILATED UP TO AND INCLUDING THE DATE OF INFRACTION AND ANY OTHER PENALTIES DEEMED NECESSARY BY TRACK OFFICIALS.

SAFETY HUB: As per NASCAR Rule Book. Same as LMSC. Section 20J-12.5

WHEELS: Must be aftermarket steel wheel. (Example : Bart) - Wheel diameter will be fifteen (15) inches. Wheel width will be eight (8) inches as measured between the beads. All wheels must have the same offset.

TIRES: The Grand Stock Division will be assigned a track tire that will be used by all competing in the division. NO TIRE CONDITIONER OR SOFTENER MAY BE USED IN ANY MANNER ON TIRES !!!!!

BRAKES: Stock, single puck disc brakes with stock type calipers will be allowed for both front and rear. Master cylinder and reservoirs must be mounted on the engine side of the firewall. No adjustment from the inside of the car. Can use aftermarket rotor and hubs.

ENGINES: Engines allowed are:

GENERAL MOTORS - 350 CID
FORD - 351 CID (Windsor only, no Clevelands)
CHRYSLER - Must use GM or Ford motor rules.

ENGINE BLOCK: Must be stock OEM part number. No aftermarket block will be allowed. No angle cutting of deck. Piston to deck clearance will be zero (0). Maximum overbore will be sixty (60) thousandths.

ENGINE LOCATION: All cars must have steel firewall, of which no part is set back further than the bottom of the windshield. All GM engines must be located so the center of the number two (2) spark plug hole is in line with the center of the upper ball joint. Center of crankshaft must be center line of tread width. Ford engines must be the same. Twelve (12) inches from the center of the crankshaft to the ground. Section 20J-5.1, 20J-5.2, and 20J-5.3

CYLINDER HEADS: Cylinder heads may not be ported or polished in any manner. No angle milling of cylinder head on intake or block surface will be permitted. Valve angle in head casting may not be changed. No high flow valves allowed. No titanium valves, retainers, or valve springs will be permitted. Valve springs and retainers must be steel.

CYLINDER HEAD PART NUMBERS PERMITTED:

GENERAL MOTORS –
Updated Part Numbers (042660) (042660-1) (042660-2)
OR
World Product  #4256B or #4256A (Fully Assembled)
World Product  #4266B or #4266A (Fully Ássembled)
Minimum 64 cc
Valve sizes:
Intake 2.02
Exhaust -1.60

FORD –
Updated Part Numbers (053030) (053030-1) (053030-2)
World Product  #5303B or #5303A (Fully Assembled)
Minimum 58 cc
Valve size -
Intake 1.94
Exhaust -1.60

CHRYSLER - Must use GM or Ford motor rules.

PISTONS: Piston must be aluminum. Piston must be flat top with two (2) or four (4) valve reliefs permitted.

CRANKSHAFT: OEM stock CÁST crankshaft for engine being used. No steel crankshafts will be allowed. No polishing or lightening of crankshaft will be permitted. Stroke length must not be altered.

CONNECTING RODS: OEM stock rods. No lightening or polishing will be permitted. Rod length for cubic displacement may not be changed !!! Only stock rod length and journal diameter will be permitted.

CAMSHAFT: Camshaft may be hydraulic or solid. Flat tappets only. No roller camshafts allowed. Camshaft lift must not exceed a maximum lift of .550 thousandths to be measured at valve retainer with the valve lash set at "0" lash.

ROCKER ARMS: Only stock or roller type 1.5 or 1.6 rocker arms allowed. ALL 16 rockers MUST BE THE SAME SIZE AND TYPE.

DISTRIBUTOR: Stock distributor will be permitted. Electronic ignition system using stock, over the counter, OEM is allowed. No MSD or any other similar system or distributor is allowed. Tachometers must be equipped with a quick disconnect for easy removal.

EXHAUST: All Grand Stocks competing at the Old Dominion Speedway in 2003 shall have one (1) Magna Flow Performance Muffler (Part # 12298). All exhaust pipe shall be three (3) inch round, magnetic steel, fastened to header collector and to the frame in a secure manner acceptable to track officials. Cross-over pipes, merge pipes, merge systems, or any other device to reduce the interior diameter of exhaust system WILL NOT BE PERMITTED. The above-mentioned muffler must remain stock as from the factory. ANY modification or alteration of any kind will result in the loss of all points up to and including the date of infraction, and/or other penalties deemed necessary by track officials. All cars must maintain a decibel level of 99 Db’s or below at all times. Track officials will monitor decibel levels constantly. Tailpipe must turn to face ground under car. All pipes must be painted white.

ELECTRICAL SYSTEMS: Only stock distributor will be permitted. Electronic ignition using stock, over the counter OEM allowed. No MSD or similar type distributors allowed. Tachometers must be equipped with a quick disconnect for easy removal.

ELECTRICAL WIRING: All wiring shall be in the open, visible, and traceable from termination point to termination point. No taping or wrapping of wires allowed. Bundling is allowed by using small, clear tie wraps only. Termination blocks are recommended for any splicing that may be necessary. Where termination blocks are used, they must be in the open, visible, and easily accessible.

STARTER: Cars must have working starter, same as LMSC Rule Book. Section 20J-6.4

BATTERY: As per LMSC Rule Book. Section 20J-6.5

RADIATORS: May be aluminum, such as Howe or Afco. Radiators must be mounted in a safe manner. All radiators must have a shroud covering the fan. Same as LMSC. NOTE: ALL CARS MUST BE DUCT SO THAT ANY AIR COMING THROUGH GRILLE GOES THROUGH THE RADIATOR. Same as LMSC Rule Book.
Section 20J-7.3, 20J-7.4 except as amended below.

ENGINE COOLING SYSTEM: No electric cooling fans allowed. Same as LMSC Rule Book. Section 20J-7, 20J-7.2 except as amended in this section.

RADIATOR OVERFLOW PIPE: All coolant overflow hoses will exit from under the hood at right side windshield post facing upward.

WATER PUMP: Water pump impellers may be altered. Stock water pump only. No aluminum water pumps allowed. Same as LMSC Rule Book. Section 20J-7.1

FUEL PUMP: Must be stock type. No electric fuel pumps allowed. Same as LMSC Rule Book. Section 20J-16.5

FUEL: No mixing of racing fuel and pump gas permitted.

INTAKE MANIFOLDS: NO PORTING OR POLISHING IN ANY MANNER !!! No angle milling of any surface on manifold. No angle milling of carburetor spacer permitted.

INTAKE MANIFOLDS PERMITTED FOR USE:

G/M - Edelbrock Part # 2101
FORD - Edelbrock Part #2181

CARBURETOR: Holley 2300 - two (2) barrel model #7448 ONLY !!! NO MODIFICATIONS TO CARBURETOR ALLOWED. No drilling or changing of any diameter in airbleeds, metering plates, throttle shafts, etc. No swapping of metering plates allowed. Choke butterfly may be removed. When removing choke linkage on side of carburetor, all holes must be filled with EPOXY. All vacuum outlets must be removed and have steel plugs or Epoxy in place. Jets and power valves may be changed. All carburetors must use power valve. No block off plugs permitted.

CARBURETOR SPACER: Spacer must be solid aluminum, a maximum thickness of three quarters (3/4) of an inch thick, with two (2) one and one half (1-1/2) inch holes. No angle milling or modifications of any kind on spacer. A one (1) piece gasket measuring sixty five (65) thousandths must be installed between carburetor and spacer.

AIR CLEANER: The air cleaner must be a Moroso Part #65925. The height of air cleaner element will be four (4) inches for both G/M and Ford. A paper style air filter will be used at all times. NO DEVICES TO CONTROL AIR FLOW WITHIN AIR CLEANER WILL BE ALLOWED.

CARBURETOR CLAIM RULE: Seventy five (75) dollars to claim a carburetor. Only the driver can claim the carburetor. Claim fee must be presented to the Track Promoter or Race Director within ten (10) minutes after the checkered flag falls in the Grand Stock feature event. The only drivers that can claim a carburetor are the drivers that finish in the top five (5) of the evenings featured event. Only drivers finishing in the top five (5) are subject to carburetor claim. If you refuse to have your carburetor claimed, you will be put on a two (2) race suspension and lose your right to claim a carburetor for a CALENDAR year. You will also lose your points for that evening's event.

TRANSMISSION: Three (3) or four (4) speed standard transmission only. No aftermarket units permitted. No weight reduction of any type allowed.

CLUTCH: A single or double disc clutch is allowed. (Example : Quartermaster) - Flywheel must be OEM diameter and design. No carbon fiber clutches allowed. Same as LMSC Rule Book. Section 20J-10.1 and 20J-10.2

BELLHOUSING: Must be steel, blow-proof type. Same as LMSC Rule Book. Section 20J-10.3

DRIVESHAFT: Must be steel and painted white. Must be two and three quarters (2-3/4) or three (3) inches in diameter. Two (2) driveshaft loops made of one quarter (1/4) inch by two (2) inch steel must be installed. No aluminum driveshafts allowed.

REAR END: May use quick-change, nine (9) inch Ford type, or OEM with use of racing axles mandatory. Locker or spool carriers only. NO torque sensitive carriers allowed. Refer to NASCAR Rule Book for mounting procedures and component legality. Same as LMSC Rule Book. Section 20J-10.6

SAFETY: All safety standards must meet guidelines in NASCAR Rule Book.

FIRE CONTROL: As per NASCAR Rule Book. Same as LMSC Rule Book. Section 20J-17.5

FUEL TANK: As per NASCAR Rule Book. Same as LMSC Rule Book. Section 20J-16.1, 20J-16.2, 20J-16.3

SEAT: As per NASCAR Rule Book. Same as LMSC Rule Book. Section 20J-17.3

SEAT BELTS: All safety standards must meet guidelines as set forth in the NASCAR Rule Book. In addition ALL
safety equipment SHALL be installed and used in accordance with the manufactures instructions and specifications.

HELMET: SHALL be SNELL 95 OR ABOVE - NO EXCEPTIONS

STEERING: Stock design must be retained in steering. No rack and pinion. Must have quick release steering wheel. In addition, see Section 20J-13 in LMSC Rule Book.

STEERING WHEEL: Must have quick disconnect metal coupling. Same as LMSC Rule Book. Section 20J-13E

WINDOW SCREEN: As per NASCAR Rule Book. Same as LMSC Rule Book. Section 20J-3.2, Section 20J-3.3

IDENTIFICATION: All car numbers will be issued by Dave Menefee only. Numbers issued and not used during the current year WILL NOT be held for the following year. Any car that arrives at the race track with an unapproved car number will be changed if necessary. Numbers must be at least eighteen (18) inches high and neatly painted on both sides of the car. A twenty-four (24) inch number must be painted on the roof. A five (5) inch number must be positioned in white in the upper right hand corner of the windshield to aid in lining up cars. Numbers must be painted in contrasting colors. No silver or gold foiled numbers will be permitted. Any number deemed unreadable by the scorers will be changed.

PRE-RACE INSPECTION: Any pre-race inspection failures for any infractions of these rules and specifications may result in not being permitted to compete. This is at the discretion of the Race Director. Substantial weight additions and/or rear of field starts could be imposed.

POST RACE INSPECTION: Any car found to be using illegal parts will forfeit any and all prize monies and points, plus any contingency monies earned for that event. Any illegal part found will be surrendered to the NASCAR Official in charge of the division. No equipment will be considered as having been approved by reason of having passed through inspection unobserved. Any equipment which does not conform to specifications or tolerances contained in the rule book will not be eligible for approval. All rules are subject to amendment at any time, when ample notice has been given in the interest of safety and competition. Pre-race inspections do not proclude post-race inspections.

PROTESTS: No protests accepted after ten (10) minutes from the drop of the checkered flag in the Grand Stock feature. No claims or protests, other than track tear downs and carburetor claim, will be allowed in the final two weeks of competition. In addition, ONLY track tear downs will be allowed on the final night of competition. Race track gets fifty (50) percent of all protest money. In addition, the protesting driver WILL HAVE the same part or parts on his/her car inspected by track officials. Protested item costs as follows:

CYLINDER HEADS - $200.00
CONNECTING RODS - $300.00
CRANKSHAFT - $750.00