Pro Stock Class Rules:
Body
1. Any stock American made steel top cars or station wagons. No convertibles, jeeps, hearses, limos, front wheel drives, el caminos, rancheros, or trucks.
2. No swapping of bodies. Body and frame must match.
3. All bodies must be bolted down using factory body mount holes. Body bushings may be removed. No welding of body to frame from cowl area to rear of car, radiator core support may be welded down to frame.
4. Radiator core support may be removed and replaced with 2””x2”” angle iron or 1 3/4" roll bar tubing. Must be in line with or behind radiator and vertically. Top support can go from fender to fender. No bracing forward or rearward. One 1 3/4" pipe between frame rails directly in front of radiator allowed. May have bar in front of radiator 2 bars up, 1 bar across, and maximum of 2 bars back. Must be in front of A arms.
5. All bodies must have original steel firewall. All firewall holes and floor pan holes must be covered by metal.
6. May have steel under driver’’s seat and leg area or from center hump to rocker panel welded or bolted to body or cage. Must retain stock floor on passenger side of car.
7. No welding of floor pan to frame.
8. Both doors must be welded. May use 3”” strap on door seams.
9. Trunk must open.
10. Drivers door and passenger door can be reinforced from outside, no wider than 4”” past original door.
11. A single rub bar no bigger than 1" by 3 inches and stretching no longer than from wheel to wheel must be welded. A steel plate no thicker than 1/8" may be welded from wheel to wheel, and from rocker panel up the side of door 18 inches. It can go 12”” behind rear tires to bumper.
12. Driver and passenger compartment must remain open. No enclosed cockpits.
13. No reinforcing of any kind on the inside of front fenders or either side rear quarter panel. No pipe or steel plate.
14. Single body steel. All body repairs must be done with thin sheet metal. No plating. Any patching of body must be no more than 1/16" thick and no more than 2 inches from damaged area.
15. All glass, plastic, upholstery, lights, mirrors, moldings and chrome must be removed.
16. Car numbers on both doors and on roof plate and easily read. Number plate on roof mandatory. Roof plate must be at least 10 inches tall. Letter may appear behind number and must be at least 8 inches tall. No four digit numbers allowed.
17. No adding of ballast or weight of any kind anywhere in the car. In frames, bumpers, body, etc.
18. A 3/8" rod may be welded around fender opening.
19. Hood scoops allowed, but no more than 2" tall.
20. May wrap corners with 1 layer of 14 gauge 6”” wide on each side. From radiator support to bottom of bumper and top of fender to bottom of bumper and also may do the same on the rear of the car 6”” both ways.
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Frame
1. Repair of rails from rust or damage from center of rear axle forward must be 1/8" flat steel or less, no angle, channel, or box iron. May have flat iron on three sides
2. Center of rear axle to back bumper can be replaced with 2x3 box tubing no thicker than 1/4" in the stock location.
3. Rear frame rails must be able to safely support bumper and protect fuel tank. May have 1-2”” bar between frame with plate between frame and bar.
4. Unibody cars can connect front and rear rails together with 2x3 inch box tubing.
5. X-ing of frame allowed.
6. All repairs must be approved by racing inspector.
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Roll Cage
1. Minimum of 4-point cage securely welded to frame.
2. Rear kickers are allowed, but must stay in trunk area.
3. May have two small bars from front of cage to in front of A-Arms.
4. Must have at least 3 driver’’s side door bars.
5. May have plate steel on roll cage between posts.
Safety is priority. Cages will be inspected; cages appearing unsafe will not race.
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Fuel Tanks
1. Must be in trunk area.
2. Original tank must be removed and not relocated.
3. Racing fuel cell in metal box.
4. All fuel cells must be securely fastened down.
5. Must have check or rollover valve and be leak proof.
Fuel
1. No racing fuel or aviation fuel, pump gas only.
2. Fuel line inside driver’’s area must be inside metal tubing.
3. No E-85.
Fuel Tank Protection
1. May weld in a bar no wider than frame rails across back of trunk with 2 bars going down and 2 bars going ahead to frame or cage kicker bars to form a cage around fuel tank for protection, bars can be no larger than 2 inches. Not required.
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Bumpers
1. No manufactured bumpers bigger then 2””x2”” square tubing.
2. No reinforcing inside of bumpers.
3. Must be bolted to frame.
4. Bumper ends if cut must be capped and welded to the body with small strips of metal no taller than the bumper. Safety chaining of bumpers is allowed.
5. Plastic nose pieces allowed.
6. May wrap corners. One layer of 14 gauge 6”” on each side. Go from top of fender to bottom of bumper.
7. All bumpers must be in factory position.
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Rear Ends
1. Stock or 9" ford rear end. Can be welded posi. Must have stock trailing arms.
2. May use floater rear ends, but NO ¾¾ ton rear ends.
Brakes
1. All four brakes must work. Rear disc brakes allowed. Must lock up on inspection.
2. No adjustable brake valves.
Shocks
1. Racing shock allowed.
2. Must be mounted in stock location and stock mounts.
Springs
1. Racing springs allowed. Stock mounts, stock locations. No weight jacks.
Suspension
1. Stock upper and lower A-frames.
2. Stock rear end control arms.
Steering
1. No Quick steer.
Drive Shafts
1. Must be painted white. Must have at least one strap or chain under drive shaft. Must be 18”” behind transmission.
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Battery
1. One automotive type battery.
2. Securely fastened down and covered inside battery box.
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Wheels and Tires
1. Must use 1 inch lug nuts.
2. Can use any rim/racing wheels are legal. Bead locks allowed.
3. Four Ply Radial passenger car tires and racing tires are legal. Maximum 8" wide wheel and 10”” wide tire.
4. Protection around valve steam allowed, no wider then bead.
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Radiator
1. Radiator in stock location.
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Engines - Stock GM-GM, Ford-Ford, Mopar-Mopar
1. Cast iron factory heads. No aluminum heads. No aftermarket heads.
2. No roller rockers or roller tip rockers. No roller cams.
3. Aftermarket and aluminum intakes allowed.
4. Aftermaket carbs allowed O.E.M. fuel injected engines allowed. Electric fuel pumps must have roll over shut off or crash shut off.
5. Headers allowed.
6. Engine needs to be in stock location.
7. Engine must be able to carry 15 inches of vacuum at 1000 R.P.M.
8. Flat top or dish pistons ONLY.
9.. Transmission coolers are allowed.
10.. Engine must be in OEM location.
11. Engine must match. Ford in Ford. GM in GM. Chrysler in Chrysler.
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Driver Protection
1. Racing seat mandatory.
2. Fire suits mandatory. (top & Bottom)
3. Must have 5 point safety harness
4. Helmets and neck collar.
5. Must have window net (may do both sides)
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Weight
1. No weight can be added.
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