Sportsman Rules

No mirrors, no radios, or communication equipment allowed at any time.

ENGINE SETBACK
1. Engine setback will be 6" from center of top ball joint to the most forward spark plug. 1" tolerance on engine setback.


FRAME
1. All frames must be of steel construction.
2. Square or rectangular frame must have a minimum of 2" by 2" material,.083 wall thickness.
3. If round tube frame, tubing must have a minimum of 1 3/4" outside diameter,.083 wall thickness.

WHEEL BASE
1. Minimum wheelbase will be 103".

ROLL CAGE
1. All cars must have a suitable steel roll cage protecting the driver's compartment, including headrest.
2. Side roll bars are mandatory, and must extend into the door panels. A minimum of 3 bars must be used on left side.
3. Each bar must be at least 1 1/2" in diameter, with a minimum material thickness of .083".
4. Roll cages must be welded to frame.

BODY
1. Same as Super Late Model specs. SEE DRAWINGS.

SAFETY
1. All cars must have 3" seat belts with shoulder harness and must be attached to roll cage.
2. We strongly recommend that all cars have an approved fire extinguisher system, securely mounted, within easy reach of the driver.
3. A 5lb. Halon system is recommended.
4. All drivers must wear a complete fire suit.

NUMBER
1. Number must be at least 18" high and on both sides and top of car.
2.All cars must have a number.

ENGINE
1. All engines have a maximum bore size and must be standard stroke for engine being used.
2. Engines may be crossed from one manufacturer's line to another. Example: Chevrolet in a Ford, Pontiac, etc.

BLOCK
1. OEM Cast iron V-8 block only.
2. Maximum cylinder bore size, Chevrolet 4,060, Ford 4,060, Chrysler 4,060.
3. After-market steel splayed main caps permitted.
4. Main cap studs and straps permitted.
5. Deburring block and plugging deck to strengthen block permitted.
6. Plug or vent and screen oil drain holes in lifter valley permitted.
7. May surface block.
8. Lifter bore must be OEM diameter for engine, Chevrolet .840, Ford .875, Chrysler .901.

Crank
1. Any steel crank with the exception of (No Pendulum Undercut counterweights and titanium or other Exotic materials.)
2. Must be standard stroke for engine, Chevrolet 3.480, Chrysler 3.580, Ford 3.500
3. No stroking or destroking of crank.
4. May balance engine.

Rods
1. Steel rods only.
2. No titanium or aluminum rods.

Pistons
1. Any flat top pistons and pins.
2. No dome pistons.

Cam
1. Solid lift cam only.
2. No roller, mushroom or radius cams.

Lifters
1. Solid lifters only.
2. No roller, mushroom or radius lifters.
3. Lifter retaining tray permitted.
4. Lifter must be OEM diameter for engine. Chevrolet .840, Ford .875, Chrysler.901.

Heads
1. These are the only heads permitted.
2. OEM cast iron straight plug heads, Chevrolet Bowtie cast iron heads, Chevrolet Bowtie Vortec cast iron heads, Dart Iron Eagle cast iron heads World Products Sportsman II cast iron heads, Ford SVO Sportsman cast iron heads, Chrysler cast iron W-2. All heads must remain AS-CAST.
3. No CC limit.
4. Valve angle and spacing must remain original production specs. For heads being used.
5. Steel valves only (No titanium valves).
6. Valve size maximum for all engines, Intake-2.020, Exhaust-1.600.
7. Valve stem diameter 11/32 minimum for all engines.
8. Under cut stem permitted, any type guides.
9. Any valve spring, retainer, and keepers.
10. Guide plates, screw in studs and stud girdle permitted.
11. Roller rocker arm, stud or shaft mount permitted.
12. No porting or polishing all heads must remain AS-CAST.
13. No port matching intake or exhaust runners.
14. Racing valve job permitted, Machine cuts only.
15. No blending valve job to casting.
16. No deburring intake or exhaust runners.

Timing Chain
1. Any chain and gears, No gear or belt drives.

Water Pump
1. Cast or aluminum permitted.
2. No electric water pump.

Oil System
1. Wet sump system only. No dry sump system.
2. Racing oil pan and/or windage tray permitted.
3. Remote oil filter and oil cooler permitted.
4. External oil pump permitted.

Fuel Pump
1. Mechanical pump only. No electric pump.

Distributor
1. Any ignition with the exception of magnetos. (No Magnetos)
2. There is a $300 claim rule on all ignition boxes.

Carburetor
1. One four-barrel carburetor only of any manufacture.
2. No turbo-chargers, blowers or fuel injections.
3. All engines must be naturally aspirated.

Intake
1. Any single 4bbl intake permitted.
2. Any size carburetor spacer permitted.

Starter
1. All cars must have starter in working order.

Exhaust
1. Collector type headers required.
2. All cars must register under 100 decibels at 100ft.
3. No deliberate air leaks, vents, holes, etc.
4. Any car that is judged to be to loud by the track officials under race conditions
will be black flagged.

Brakes
1. 4 wheel disc brakes permitted.
2. No carbon fiber brake parts permitted.

Fuel Cell
1. An approved fuel cell (32 gallon maximum) must be securely mounted in the trunk area of the car, inside a .20 gauge metal box supported by a minimum of two 2" inch by 1/8" inch steel straps.
2. All fuel cells must be completely visible from rear of car.
3. Fuel cell must not be mounted lower than bottom of quick-change rear end.
4. Gas only-no alcohol-no nitrous oxide, nitro methane or other nitrate additives.
5. No propylene oxide.

Transmission
1. Must have at least one forward and one reverse gear in working order.
2. No straight drives or in and out boxes.

Wheels
1. Any brand or type of wheel allowed must be mounted with lug nuts.
2. No knock-off or center locks wheels.
3. Maximum wheel width-14"inches.

Weight
1. 2400 lbs.
2. one pound per lap weight allowance after race.
3. Track reserves the right to adjust weights in interest of competition should it deem necessary.
4. Attached weight must be securely bolted to frame with 1/2" or larger bolts and painted white or silver with car number clearly painted on them.
5. All cars must have specified weight posted on top left side of roof.