ATTENTION:
All cars must purchase 5 gallons of race fuel from Huntsville Speedway prior to any 50 Lap race.
All cars mush purchase 10 gallons of race fuel from Huntsville Speedway prior to any race that is 75 Laps or greater.
All tires will require a Huntsville Speedway stamp before racing in the feature.

Safety Rules
1. Apparel – See General Rules

Weight
All specified weight requirements will be with gas, oil, water and driver prior to racing.

9 to 1 motors with a Huntsville Speedway legal 350 carb. will be allowed to run at 2750lbs. and 58% left side weight (weight may be added in the future) Any ASA legal Late Model with a 604 crate motor will have to weigh 2750 and 58% left side.

Engine
Claim Rule Includes: GM #88958604 and Ford: Crate Motor from McGunegill #ASA 425 LM

General Motors crate engine part number 88958604. Ford Crate Motor from McGunegill #ASA 425 LM. All sealing bolts must remain as installed from General Motors. Removal of sealing bolts will result in disqualification. NOTE: See Carburetor and Ignition sections.

Only the top five drivers finishing a race, their crew chief or owner may claim a General Motors crate engine number 88958604 from a driver finishing the race ahead of the claiming driver. The claim will be limited to one car and must be made within 10 minutes after completion of the feature event with the cash only claim fee to the Race Director or Chief Pit Steward. The claim fee will be the current price of the General Motors crate engine number 88958604 plus $250. The fee will be distributed to purchase a new General Motors crate engine number 88958604 for the driver being claimed plus a $250 pulling fee. Not included in the claim are carburetor, water pump, distributor and pulleys. A claim fee will not be accepted should HS Officials determine the claim fee has been made on someone else behalf or the fee is from more than one party. Failure to pull and sell a claimed engine will result in the driver being claimed forfeiting all purse and points for the event and all track points for the year. The driver must also pay a $250 fine prior to being allowed to compete again at HS.

OR

Displacement, maximum 362 CID, V8 only.

Block, Cam Shaft and Lifters
1. General Motors, Ford or Chrysler cast iron small block only. Four-bolt mains permitted with steel caps. Deburring permitted, but no polishing inside block except in oil return holes which may be enlarged and polished with screen wire installed. Plugs may be used in block for strength only; plugs may not be higher than block surface.
2. Solid lift cam or roller tappet cams and lifters permitted.
3. Wet, dry, or accusump oiling systems and racing oil pans permitted.
4. Stock-type head bolts, studs permitted.

Crank, Rods and Pistons
1. After market steel crank permitted with stock stroke +/- .020". Chevrolet 350 may use a 3.480" stroke steel crank. Ford and Chrysler may use a stroked steel crank; stroke is not specified. Cranks may be balanced and debured.
2. Stock-appearing after-market steel or steel billet rods and “H” beam rods permitted at any length, no titanium rods permitted. Polishing or machine work not permitted on rods, except for balancing.
3. Flattop pistons not to exceed deck.

Cylinder Heads
1. Only cast iron, 23° OEM type heads permitted. Angle cut, angle plug, dart type, high compression or 300 H.P. Chevrolet heads allowed.
2. No polishing or porting. Port matching allowed for first 1”.
3. No extra pins in heads. Ford head may be posted with stuffers on intake side of head.
4. O-rings permitted in Ford head or block.

Rocker Arms
1. Adjustable aftermarket, roller rocker arms and shaft rocker arms permitted. Poly-locks permitted.
2. 7/16" screw-in studs and guide plates permitted. Studs may be pinned. Stud girdles permitted.
3. Crate Motor must run 1.6 ratio factory type rocker arms.

Valves
1. Maximum valve size: Chevrolet and Chrysler intake 2.05"/exhaust 1.600, Ford intake 2.02"/exhaust 1.60". Neck down valves permitted. No titanium valves. Maximum under size .010th.
2. Racing valve job permitted with maximum of 3 angles on valve seat and valve face permitted. No blending valve job to casting in head.
3. High performance springs and retainers permitted.

Intake Manifold
1. High performance cast-iron and aluminum intake manifolds permitted. HS Officials must approve intake manifolds.
2. No altering or polishing. Port matching is allowed for first 1” only. No laser treating or micro holes allowed. No Altering of Plenium, or any devices permitted inside runners.

Exhaust Manifold
1. Any type single flange steel tubular header permitted. Exhaust system may either exit underneath the car with turndown, behind driver, or out of the right side behind the door.
2. True visible mufflers are required. No vortex cones.

Carburetor
1. General Motors crate engine - Holly 650 HP 4150-80541 four-barrel. No alterations
2. Holly 2300 two-barrel number 7448.
3. Body of carburetor - no polishing, grinding, or drilling of holes permitted. No paint or any other type of coating other than from carburetor manufacture allowed inside or outside of carburetor.
4. Choke and choke horn may be removed, but all screws must be permanently sealed.
5. Booster size or shape must not be altered. Height must remain standard.
6. Venturi area must not be altered in any manner. Casting ring must not be removed.
7. Base plate must not be altered in shape or size.
8. Stock butterflies must not be thinned or tapered. One idle hole may be drilled per butterfly. Screw ends may be cut even with shafts, but screw heads must remain unaltered.
9. Throttle shafts must remain standard and cannot be thinned or cut in any manner. No silicone or epoxy allowed on throttle shafts.
10. Any attempt to pull outside air other than down through hood opening is not permitted.
11. A minimum of two return springs is required. Throttle stops recommended.

Carburetor Spacer
1. Only one non-adjustable one-piece solid aluminum carburetor spacer permitted maximum ¾” in height, with 1 paper gasket per side not to exceed .065" in thickness. Spacer must have two holes with openings cut perpendicular, matching carburetor base, and no larger than base of carburetor. No taper or beveling permitted.
2. Crate Motor spacer Maximum height 1"

Air Intake
1. Round dry type paper or K & N type element allowed 12-20" in diameter, maximum 5" in height. Element may not be sprayed or soaked with any type of chemicals or liquids. All air shall be filtered through element. Air cleaner housing must be of metal type. Top of air cleaner can either be solid or K & N top.
2. Cold air box allowed
3. Cowl induction, air ducts or baffles will not be permitted on or leading to the air cleaner. An opening 2 ½” by 20" may be cut in the hood behind the carburetor with the back edge either meeting or a maximum of 1" from the windshield.
4. Only Complete ABC Bodies may run ABC cowl.
5. No sheet metal heat shields or any other type of hot air deflection device or airflow deflection device allowed past the backside of the radiator or in engine compartment. A piece of metal may be added over the top of the fan for cooling purposes.

Engine Placement
1. Measured from the center of #1 spark plug hole to the center of the left upper ball joint within ¼”tolerance. Chevrolet- 2", Ford 302 and 351- 4", Dodge- 4": Per ASA Crate Motor 4".
2. Engine must be in center of frame with 1" tolerance.
3. Center of crankshaft to ground 10". No tolerance.

Transmission
1. Must have OEM factory-type transmission with at least two forward and one reverse working gears. Jerico type transmissions permitted.

Clutch
1. Multiple disc clutches with steel floaters and pressure plates permitted, minimum 4 ½” in diameter. No carbon fiber or fiberglass discs.
2. Clutch housing assembly or cover may be made of steel or aluminum.
3. It is recommended that a ¾” hole be drilled in the top of the bell housing directly over the starter ring gear to manually turn the engine.

Spindles
1. Aftermarket, homemade, and ¾” ton spindles permitted. Must be steel only.

Brakes
1. Front and rear disc brakes mandatory. Any caliper permitted.
2. Only cast steel rotors permitted. Rotors must maintain a minimum of ¾” thickness and can not be drilled or slotted completely through. No floating rotors.
3. No carbon fiber, fiberglass or titanium brake parts allowed.

Brake Cooling
1. A maximum of one scoop per wheel with the opening on the front air dam fully covered with screen and no larger than 3"x 8", mounted on the inside of the front air dam. Maximum of two hoses per break, with a maximum 3" flexible hose to the brake.
2. Brake fluid circulators permitted. Liquid or gas cooling not permitted.

Ignition
1. Breakerless, or dual point systems permitted. Ignition booster, racing coils or high performance ignition wires permitted. No magnetos or crank trigger ignition systems.
2. Alternators permitted.
3. One battery permitted. Maximum 16 volt and mounted securely outside of drivers compartment.
4. All wiring must be sealed. No unplugged wiring.
5. All ignition components (Coil & MSD type systems) must be mounted on dash area in plain view. No traction control devices allowed.
6. All racers using a crate motor will supply Huntsville Speedway with a 6500 chip prior to qualifying. All chips will be placed in a container with each driver to select a chip. Huntsville Speedway official will place and secure each chip.

Wheels
1. Racing steel wheels only, maximum rim width 10".
2. Air bleeders permitted.

Tires
1. Hoosier 2045. Tires must have HS purchase stamp and be purchased at the track through the HS vendor.
2. Maximum tread width allowed is 65" with 1" tolerance. Tread width is measured from the left center of tire to the right center of tire. Spacers permitted.

Shocks
1. Racing shocks permitted. One shock per wheel. Adjustable shocks allowed.

Rear Ends
1. Quick change and open tube rear ends permitted.
2. Aluminum tubes permitted.
3. No independent rear suspension or cambered rear ends permitted, one-degree camber tolerance permitted.
4. Damper shocks permitted.

Fuel System/Cell
1. Manual, block mounted stock type fuel pumps only. No electric fuel pumps.
2. No icing, Freon type chemicals or refrigerants may be used in or near the fuel system or engine compartment. No cooling of fuel cell or fuel system.
3. Fuel cell mandatory, maximum capacity 22 gallons, vented with maximum 1" vent to outside left rear of body.
4. Fuel cell must have a minimum of two, made of 1" square tubing, protection braces wrapping around fuel cell from front, underneath and to back of cell and a rear protection bar of 1.75" tubing extending below the rear of frame and at least ½" below the bottom of fuel cell to cover the width of the fuel cell. Minimum ground-to-fuel cell 9".

Starter
1. Car must start under its own power. After-market starters permitted.

Cooling System
1. Aluminum water pumps, radiators and electric fans permitted.
2. All cars must have catch can or hose to exit at windshield.
3. Water only must be used in cooling system. Any additive to water, i.e. Water Wetter, must first be approved by an HS Official. Any driver found using unapproved coolants will be DQ from the race at HS.

Springs
1. Coil over or bucket type springs permitted. One spring per wheel.
2. Leaf spring permitted on rear.

Body
The car body must be acceptable to HS Officials at all times. All body parts must have a minimum clearance of 4" prior to race with fuel, oil, and water, without driver. No car will be allowed to start a race without a full body. Use of headlight and taillight decals recommended.
1. Approved make and models for competition:
Chevrolet Monte Carlo 1995-2002 ARP 2003 Second Design only
Dodge Intrepid 2001-2002
Ford Taurus 1998-2002
Pontiac Grand Prix 1998-2002
2004-05 ABC Bodies: For rules regarding ABC Bodies please refer to the ABC Rule book available from HS, Five Star Or ARP.
2003 Down-force Bodies allowed, add 50 lbs.
ABC template legal bodies receive 50 lb. break.
2. After-market fiberglass or aluminum bodies permitted only, no carbon fiber. Body must remain standard in appearance and fit either a stock Five Star template for make and model of Five Star bodies or a stock ARP template for make and model of ARP bodies. No streamlining, under panning, humps in fenders or hoods or rolled-over front fenders. A 1" tolerance will be allowed to template.
3. Stock as manufactured two piece poly plastic front nose and tail covers only, no altering. Grill air intake must be fully covered with screen in stock location, height and width. Maximum front overhang is 47", measured from center of spindle to forward most point on front nose cover. Maximum rear cover overhang is 54", measured from center of rear axel to farthest edge of rear cover.
4. Maximum rear quarter panel height 35 ½”. Rear quarter panel height is measured at the highest point at where ¼ panel and bumper meet
5. Minimum 47". Roof height is measured in the center, 10" from behind the top of the windshield. No rails on roof or rear window.
6. Spoiler height 42”.
7. Maximum width of spoiler 60", measured across the backside of the spoiler, maximum height of spoiler is 6 and ½”. Spoilers must be solid 1/8” sheet metal or ¼” clear polycarbonate. No forward rudders or mounting brackets will be permitted. Maximum 4 mounting brackets or supports on the backside of the spoiler.
8. Full windshield, rear window and rear quarter windows mandatory. Vent windows optional, maximum length 10". Windshield and all windows must be clear polycarbonate, minimum 1/8" thick.
9. Windshield and rear window must have a minimum of two, top to bottom, 1" x 1/8” support braces located in the center of the windshield and rear window behind the clear polycarbonate to brace as to not deform under race conditions. Supports braces will be no closer than 3" apart.
10. Car body must be mounted in center of frame with wheels in the center of wheel wells.

Interior
1. Car interior must be complete and shield driver from ground, engine compartment and fuel cell area. Firewall must be no less than 24-gauge metal and fully seal driver from engine compartment.
2. Car may have an installed dash panel with optional gauges. Digital tacs permitted.
3. On-off switch must be located on dash within easy access of driver as well as access from outside left window opening. On-off positions must be clearly marked. Must be visible and reachable by safety crew.
4. Quick release steering wheel is mandatory. Center top section steering post must be padded with at least 2" of padding material.
5. All roll bars surrounding driver must be padded. Padding must be acceptable to HS Officials.
6. A window net must be installed in the left side door glass opening. The window net must be a rib type, made from nylon material with a minimum 1" square opening between the ribs. The minimum window net size shall be 22" wide by 16" high. All window nets must have quick release mechanism and be welded to roll cage. The window net, when in the closed position, must fit tight when secured.
7. Rear view mirror permitted inside of car only.
8. Must have minimum 2-pound fire extinguisher with a gauge and a quick release mounted securely in car within reach of driver while belted in car.

Frames
1. Straight rail, perimeter and OEM front clip frames permitted.
2. No chassis adjustment from inside car except for brakes.
3. Frame and roll cage, including weight box, must be inside of left front and left rear tires.
4. Minimum ground clearance prior to race with fuel, oil, and water, with out driver, is 4".

Wheelbase
1. Wheel base must be in stock position and within 1"from side to side.
2. Wheelbase minimum 101 ".

Roll Cage
1. HS Officials must approve roll cage designs. Round steel tubing 1 ¾” OD round tubing by .090" minimum wall thickness must be used to construct roll cage. Roll cage should be box type with a cross support in the back and a minimum 9" upright support at the left front support.
2. Left door must have a minimum of three bars (four recommended) and must have 1/16” minimum steel plate from frame to third door bar.

Drive Shaft
1. Steel or Aluminum drive shaft only Min. 3". Drive shaft must be painted white with car number painted in red or black.
2. Minimum one 360 degree loops, 1" x 1/8" steel.

Sway Bars
1. The main body of the front sway bar must be made of steel and may be splined for attaching to the main body. Hiem joints may be used for attaching the sway bar arms to the lower control arms.
2. Sway bars (anti-roll bars) will be permitted on the rear suspension.