2004 RULES AND REGULATIONS version GS2004.A effective 12/13/03

The Grand Stock division is designed to promote a greater interest in Stock Car Racing at less expense than the NASCAR LMSC division. The Grand Stock rules are similar to NASCAR LMSC rules in order to allow teams to prepare themselves for advancement in the sport. Any reference to NASCAR LMSC rule or section within these rules refers to the 2003 NASCAR Rule Book. These rules are subject to amendment at any time when notice has been given. Notice shall be deemed effective within two (2) weeks of the rule amendment and posting of the rule change by Old Dominion Speedway(ODS).

1. Competing Car Models Open to two door American made passenger car production sedans, 1982 through 2004, that are approved for competition by ODS. No trucks or station wagons allowed.

1.1 Approved Competition Models Buick: 1982 - 1995 Regal

Chevrolet: 1982 - 1996 Camaro 1987 - 1996 Beretta 1989 - 1994 Lumina 1995 - 2004 Monte Carlo

Chrysler: 1985 - 1993 Lebaron

Dodge: 1983 - 1993 Daytona 1995 - 1996 Avenger 2001 - 2004 Intrepid

Ford: 1983 - 1997 Thunderbird 1998 - 2004 Taurus

Oldsmobile: 1982 - 1995 Cutlass Supreme

Pontiac: 1982 - 1996 Firebird 1982 - 2004 Gran Prix

1.2 Only cars registered as Grand Stocks will be allowed to compete in the Grand Stock division.

2. General Body requirements

2.1 Car Bodies: All car year/models listed in the 2003 NASCAR Rule Book, section 20J, must comply with LMSC section 20J-2.1 All other car models must comply with ODS dimensional specifications and LMSC rule 20J-2.1B thru K. Note: 1995-1996 Dodge Avenger must use Five Star manufactured body only.

2.2 Overall Car Weight: All cars must comply with NASCAR LMSC rule 20J-2.2. Minimum weight of 3,100 pounds, with a minimum rightside weight of 1400 pounds.

2.3 Added Car Weight: See ODS rules for ALL Divisions section 1.2.

2.4 Cars must weigh a minimum of 3100 pounds with a minimum right side weight of 1400 pounds at ALL times. This includes post-qualifying and post-race as the car comes off the track. No adding of fuel, water, oil or gear lube will be allowed. Wheels and tires must not be changed.

3. Detailed Car Body Requirements

3.1 Spoilers: Spoilers and Front air dams must comply with NASCAR LMSC section 20J-3.1.

3.2 Windows, Lights, Mirrors: All cars must comply with NASCAR LMSC section 20J-3.2. This rule governs windshields, Rear Windows and Window Nets.

3.3 Dash Panel, Fire Walls, Doors, Fenders, Grilles, Hood, Roof, Rear Deck Lid and Bumper Covers must comply with NASCAR LMSC sections 20J3.3 thru 20J3.10. Flat Hoods Only.

3.4 Identification/Car Numbers: See ODS rules for ALL Divisions section 2.

3.5 Car Body Measurements: Car body measurements must comply with NASCAR LMSC rule 20J-3.12 if the car make/year/body is legal for 2004 LMSC competition. Car body measurements must meet ODS dimensions for all other make/year/body cars eligible per these rules.

4. General Engine Requirements

4.1 The following engines are allowed: Chevrolet - 350 CID small block V8 Ford - 351 CID Windsor small block V8 (Clevelands are not allowed) Dodge - 360 CID small block V8 (Consult ODS Tech for Detailed Requirements)

4.2 Any engine listed above may be used in any eligible car.

5. Detailed Engine Requirements

5.1 Engine Location: Chevrolet engine must be located so that the center of the No. 2 spark plug hole is in line with or no more than one (1) inch forward of the center of the right upper ball joint. Ford engine must be located so that the front face/edge of the right side cylinder head is in line with or no more than one (1) inch forward of the center of the right upper ball joint. Center of crankshaft must be located on centerline of frame/tread width. See NASCAR LMSC rule 20J-5.1.

5.2 Engine Height: Engine height will be a minimum of twelve (12) inches from crankshaft center at the front pulley to the ground, measured with driver. See NASCAR LMSC rule 20J-5.2.

5.3 Engine Mounts: Engine mounts must comply with NASCAR LMSC rule 20J-5.3

5.4 Engine Displacement: Engine displacement and engine stroke will be stock for the engine being used with a maximum allowable overbore of sixty thousandths (.060) of an inch.

5.5 Engine Block: The engine block must be a stock cast iron block with an OEM part number. No aftermarket, GMPerformance, or Ford SVO/SVT racing type blocks allowed. No angle cutting of block deck. 5.5.1 Pistons: Pistons must be flat top aluminum with two (2) or four (4) valve reliefs permitted. 5.5.2 Connecting Rods: Connecting Rods must be OEM stock rods. No lightning or polishing permitted. Stock rod length and journal diameter must be maintained. 5.5.3 Deck Height: Minimum piston to deck clearance is zero (0). Piston may not protrude above the block deck. 5.5.4 Oil Pan: Oil pan must comply with NASCAR LMSC rules 20J-5.5.4A and 5.5.4B

5.6 Cylinder Head: Approved cylinder head is a 2 valve, cast iron head, World Products part numbers:

Chevrolet: 042660-2, 042660-1, 042660 4256B, 4256A (fully assembled) 4266B, 4266A (fully assembled) Minimum 64cc combustion chamber Intake Valve size 2.02 Exhaust Valve size 1.60

Ford: 053030-2, 053030-1, 053030 5303B, 5303A (fully assembled) Minimum 58cc combustion chamber Intake Valve size 1.94 Exhaust Valve size 1.60

Dodge: (Consult ODS Tech for Detailed Engine Requirements)

5.6.1 Cylinder Head Modifications: No angle milling of cylinder head block surface or intake surface is permitted. Valve angle in head may not be changed. Cylinder heads may not be ported or polished in any way.

5.6.2 Valves, valvesprings and retainers must be steel. No Titanium valves, springs or retainers.

5.7 Crankshaft: crankshaft must be OEM stock cast crankshaft. No steel crankshafts allowed. Polishing or lightening of crankshaft will not be allowed. Stock stroke must be used. Harmonic balancer must be OEM magnetic steel elastomer type balancer.

5.8 Camshaft, Rocker Arms

5.8.1 Camshaft may be hydraulic or solid flat tappet type cam. No roller cams/lifters. Camshaft lift must not exceed .550 inch measured at valve retainer with valve lash set to "0" lash. Valve lifters and pushrods must be magnetic steel and comply with NASCAR LMSC rule 20J-5.8.2

5.8.2 Rocker Arms may be stock or roller type. Rocker arm ratio may be 1.5 or 1.6. All 16 rocker arms must be of the same model, type and ratio.

5.9 Intake Manifold: The following intake manifolds must be used:

Chevrolet: Edelbrock #2101 (Only current design "Performer" manifolds are permitted. Older design manifolds with the same p/n are not permitted.)

Ford: Edelbrock #2181

Dodge: Edelbrock #2176

No angle milling of any surface on the manifold is permitted. No porting or polishing is allowed in any manner.

5.10 Carburator: Holley 2300 two barrel carburetor list number 7448. No modifications allowed to carburetor except as specified below: 5.10.1 No drilling or changing of any diameter of airbleeds, metering plate passages, throttle shafts, etc. 5.10.2 No swapping of metering plates. 5.10.3 Choke butterfly may be removed. When choke linkage is removed, all linkage mounting holes must be filled with epoxy. 5.10.4 All vacuum ports/outlets must be removed and plugged with steel plugs or epoxy. 5.10.5 Jets and power valves may be changed. Power valve must be used, No power valve block-off plugs allowed. 5.10.6 Carburetor Dimensional Specifications

See Attached ODS Carburetor Specification Document.

5.10.7 Carburetor Spacer: Solid aluminum, .750 inches thick, with two 1.5 inch diameter holes located in the center that match the carburetor. Spacer must comply with NASCAR LMSC Rule 20J-5.10.2 5.10.8 Carburetor claim rule: See para 18.5. 5.10.9 Any carburetor held for inspection will be impounded for the week and will be returned the following Saturday at the track upon competitor's arrival if Carburetor is found to be legal. 5.11 Air Cleaner and Air Intake: Air cleaner must be round and centered on the carburetor. (Moroso #65925) Paper style filter element only. No devices to control the flow of air within the air cleaner are allowed. Must comply with NASCAR LMSC section 20J-5.12.

6 Engine/Car Electrical Systems

6.1 Ignition System: Stock OEM point type distributor is permitted. Stock OEM style electronic ignition system is permitted. Aftermarket electronic ignition systems, MSD or similar, are NOT allowed. Tachometer must be equipped with quick disconnect connector to allow easy removal.

6.2 Spark Plugs: Spark Plugs must comply with NASCAR LMSC rule 20J-6.2.

6.3 Alternator: Alternator must comply with NASCAR LMSC rule 20J-6.3.

6.4 The self starter must be in working order and installed in the stock location. Starter must comply with NASCAR LMSC rule 20J-6.4.

6.5 The battery must be installed in an enclosed battery box. Battery and Installation must comply with NASCAR LMSC rule 20J-6.5.

6.6 Electrical Switches: All electrical switches must comply with NASCAR LMSC rule 20J-6.6 An electrical cut-off switch that cuts off all power to the car must be mounted in the center of the dash that can be reached from both sides of the car and the driver.

6.7 Electrical Wiring: All wiring shall be routed in an open manner, visible, and traceable from termination point to termination point. Taping, wrapping or enclosing wires into looms is not permitted. Bundling and securing of wires is allowed using small CLEAR tie wraps only. Termination blocks are recommended for connecting or splicing wires were necessary. Terminal blocks, if used, must be in the open, visible and easily accessible. Wiring and any accessories must comply with NASCAR LMSC rule 20J-6.7.

7. Engine Cooling System Engine Cooling System must comply with NASCAR LMSC section 20J-7 except as amended below: 7.1 No electric fans are allowed.

7.2 Stock OEM style water pump only.

8. Engine Lubrication Engine Lubrication System must comply with NASCAR LMSC section 20J-8. No Accusump systems allowed.

9. Engine Exhaust System Engine Exhaust System must comply with NASCAR LMSC section 20J-9 except as amended below:

9.1 Car exhaust system shall have one Magna Flow Performance Muffler (part # 12298) installed. The installed muffler will function as a Y-pipe, with the output of each header connected to the dual muffler inputs, and the single output of the muffler connected to the exhaust tailpipe. The specified muffler must remain stock as from the factory. No modifications will be permitted. The muffler outlet flange may not be covered by the exhaust tailpipe and must be visible for inpection purposes. Modifications to this muffler may result in the loss of all points and/or other penalties as deemed appropriate by track officials.

9.2 All exhaust pipe shall be three (3) inch outside diameter and shall be painted white.

9.3 Tailpipe must turn to face the ground. Exhaust may not exit through the door.

9.4 Cars must not exceed a 99 db decibel level, as measured by track officials. Sound levels may be monitored anytime cars are on track.

9.5 Exhaust leaks anywhere in the system as determined by track officials will not be allowed and must be corrected.

10. Drivetrain

10.1 Clutch: Must comply with NASCAR LMSC rule 20J-10.1 except as amended. Carbon fiber clutches are not allowed.

10.2 Flywheel: Must comply with NASCAR LMSC rule 20J-10.2.

10.3. Bellhousing: Must comply with NASCAR LMSC rule 20J-10.3. No lightening holes may be drilled or cut into the bellhousing. An inspection port measuring 4 inches wide and 3 inches in a front to rear dimension must be cut in the bottom of the bellhousing to facilitate clutch inspection. This opening must be covered with a 1/8 thick steel plate measuring 5 inches by 4 inches.

10.4 Transmission: Must comply with NASCAR LMSC rule 20J-10.4 No weight reduction of any type is permitted.

10.5 Driveshaft: Must comply with NASCAR LMSC rule 20J-10.5.

10.6 Rear Axle: Must comply with NASCAR LMSC rule 20J-10.6 except as amended. Nine inch Ford or OEM axle assembly may be used as long as racing axles have been installed. Torque sensitive carriers are NOT allowed.

10.7 Wheels: 10.7.1 Wheels must comply with NASCAR LMSC rule 20J-10.7 except as amended. Wheel width will be eight (8) inches as measured between the mounting beads. 10.7.2 Tire bleeder valves are not allowed.

10.8 Tires: 10.8.1 Tire: The track assigned tire is Goodyear model/compound # D1882. This tire is categorized as a Short Track Special, G19 (slick) tread configuration. No tire conditioner or softener may be used in any manner on tires. 10.8.2 Tire Procedures - Two Tire Rule Grand Stock teams will be allowed to purchase and use two (2) new tires for an event's qualifying and race(s). Only 2 new tires will be allowed on the car for qualifying/racing for an event. Teams will select their two (2) tires in the tire compound area and have them mounted. Tires will be branded by ODS officials for identification purposes. Tires used in qualifying and the race MUST have been purchased at ODS and contain the ODS brand. Teams will be allowed to set air pressures and measure tires in the tire compound area. Teams will move the tires directly from the tire compound area to an area designated for GS tires by track officials. Tires should have air pressures set at the level that teams want them to be during impound, before qualifying. Teams will not be permitted to work on the tires after they leave the tire compound. Teams will be told by track officials when they may retrieve tires in preparation for qualifying. Teams must race on the same tires that are used for qualifying. Tires purchased and used for practice may not be used for qualifying/racing. After the completion of the GS feature race(s) , teams will remove two (2) tires that had completed the race from the car and submit them to track officials for impound. These two tires will be impounded at the track until the next race. These two tires will be used for qualifying and racing at the next weekend of racing. If a team does not intend to buy tires the for the next race they must submit four (4) tires for impound. Tires should be clearly marked with the teams car# with tire chalk. In the event of a rainout, tires will be impounded by track officials.

11. Frames Frame must comply with NASCAR LMSC section 20J-11.

12. Suspension Suspension must comply with NASCAR LMSC section 20J-12 except as amended below. This includes: springs, sway bars, A-Frames, spindles, wheel bearings, hubs, tread width, wheelbase, body height, ground clearance, car height adjustment devices.

12.1 All cars must compete with a wheelbase of 105 inches with a tolerance of plus (+) or minus (-) one half (1/2) inch.

12.2 Whatever bushing material is used in the left side suspension must also be used in the right side suspension.

12.3 Shocks: The track has assigned a specific shock absorber to be used in this division. This shock absorber is a Koni gas mono tube shock. The following part numbers are approved: Current p/n Superceded p/n Front: 30-1304 30-7325 30-1309 30-7436 Rear: 30-1308 30-9325 30-1309 30-9436

These shocks may not be altered, revalved or rebuilt by the manufacturer or any other individual. Shocks and internal components are subject to inspection by track officials at any time. A shock as provided by Koni will be used as guide in determining if a competitors shock is in compliance with this rule. Any violation of this shock rule may result in the loss of all points and/or other penalties as deemed appropriate by track officials.

12.4 Tread Width: The tread width must comply with NASCAR LMSC rule 20J-12.6. Wheel spacers, if used, must be magnetic steel and the same thickness used on the right and the left sides.

13. Steering Components Steering Components must comply with NASCAR LMSC section 20J-13.

14. Brakes and Brake Cooling Brakes and Brake Cooling must comply with NASCAR LMSC section 20J-14.

15. Fuel: See ODS rules for ALL Divisions Section 5.

16. Fuel System

The Fuel System must comply with NASCAR LMSC section 20J-16. This includes: Fuel Cell, Fuel Cell Container, Installation, Fuel Filler, Fuel Cell Vent, Fuel Pump and Fuel Lines and Fuel Fill Containers.

17. Personnel Safety Requirements and Roll Bars

See ODS Rules for ALL Divisions Section 6.

18. Inspections, Protests and Claims

18.1 Pre-Race Inspection: Any pre-race inspection failures or non-compliance with these rules may result in not being allowed to participate or compete in the event. Additional weight or rear of field starts may be imposed. The penalty for inspection failure is determined by the race director.

18.2 Post Race Inspection: Any post-race inspection failure may result in forfeiture of some or all prize money, contingency money and points earned for that event. Any illegal part found will be surrendered to NASCAR track officials. No equipment or part will be considered approved by reason of having passed through previous inspections. Pre-race inspections of a particular part or rule do not preclude post race inspections. The penalty for inspection failure is determined by the race director.

18.3 Protests: No protests will be accepted after ten (10) minutes past the drop of the checkered flag in the Grand Stock feature race. In the final two weeks of the season any competitor protests must be made to an ODS Tech official, who will determine if the protest is allowed. Track teardowns and post race inspections will be conducted as normal including the final night of competition. ODS will retain fifty (50) percent of all protest money. The protesting driver/owner will have the same part/parts inspected on their car. The cost to protest, (teardown fee), particular items is:

Cylinder Heads $200 Connecting Rods $300 Crankshaft $750

18.4 Teardowns: Any driver/owner refusing a request from NASCAR track officials to teardown for post-race inspection or protest for any reason will be placed on a one (1) race suspension. The driver will be held responsible for the refusal to teardown. The driver will lose all points earned for the current event. Refusal to teardown a second time will result in the loss of all points accrued during the season and suspension for the remainder of the current season. ODS track officials reserve the right to teardown at any time.

18.5 Carburetor Claims: The carburetor is subject to a claim rule. The cost to claim a carburetor is $75. Only the driver can claim the carburetor. Claim fee must be presented to the race director within 10 minutes from the waving of the checkered flag ending the Grand Stock feature race. Only drivers finishing in the top 5 positions AND are in the top 5 in the division point standings may claim a carburetor. Only drivers finishing in the top 5 positions AND are in the top 5 in the point standings are subject to being claimed. Refusal to surrender a claimed carburetor will result in a two race suspension, forfeiture of points for the current race and loss of right to claim a carburetor for a calendar year. The claimed part must be run by the claiming driver in the next race in which he competes. No claims allowed on the final night of competition.

19. Administration

19.1 All competitors should read/review sections 1 thru 17 of the NASCAR 2003 Rule Book.

19.2 Any questions concerning these rules should be directed to a member of the ODS technical crew.

Hayne Dominick - ODS General Manager Billy McCord - ODS Race Director Gilbert Grable - ODS Chief of Tech Less Steger - ODS LMSC Tech

19.3 Old Dominion Speedway welcomes all of its competitors to an exciting new racing season. Well wishes are extended for a safe, professional and successful racing season.