The rules promulgated in these
rules are intended as guidelines for the sport of tractor pulling. Each owner
or driver who participates in pulling events operated under these rules is
fully responsible for the safety of his equipment. Nothing herein should be
construed as a guarantee against injury or death to participants, crewmen,
family members, bystanders or spectators. Each participant at an Allegheny Highland
Pulling Association Inc. pulling event must assure that their equipment
and replacement equipment throughout the season meets the safety requirements
for this class.
1. All contestants enter class at their own risk.
2. Frame must be stock, no extensions, and stock
wheel base.
3. Front end may be homemade, but must retain stock
wheel base.
4. Hood and grill must be in place with stock
appearance as per manufacturer.
5. Small block limit of 410 CID, Big block limit of
505 CID.
6. RPM limits:
Small block- 5,000 & Big Block- 5,000.
7. Maximum of 8 cylinders, no turbo chargers or
diesels. Naturally aspirated, No
turbines or superchargers.
8. Gasoline only. No alcohol, Racing gas allowed, No
additional fuels allowed.
9. All engines must have working air cleaner.
10. Engine must be governed by MSD Rev Limiter, no
extra plugs permitted at the chip location.
Chip must be easily accessible for insertion of a club chip at the
discretion of the officials.
11. All engines must have a plastic or an electric fan.
12. A single carburetor with a limit of four
barrels. No fuel injection.
13. Must have cast iron block and heads.
14. Spark plugs, engine block, and harmonic balancer
must be shielded.
15. Must have a "dead man" throttle. If the
throttle is released the throttle immediately return to idle. Carburetor must
be equipped with double return springs.
16. Tractor must have a neutral start safety switch.
17. Auxiliary transmission allowed. No
automatic transmissions.
18. Maximum tire size: 18.4x38, cut tires
permitted. No radials.
19. All tractors must have a working kill switch. If tractor is quipped with electric fuel
pump, kill switch must also kill power to the electric fuel pump.
20. Maximum hitch height of 20 inches.
21. Minimum of 18 inches from center of the rear axle
to the hitch point. Hitch must have a
3" hole, 1" thickness of hitch plate with 1" material from hitch
point to rear of plate. No clevis
permitted.
22. Safety bars to prevent the tractor from splitting
required.
23. Clutch and fly wheel must be shielded 360 degrees
by 3/8 steel with clutch area totally enclosed or ASFI approved bell housing or
safety blanket. All drive shaft couplers
or U joints must be shielded 360 degrees by no less than 1/4" steel.
24. Fire extinguisher mandatory.
25. Helmet, fire suit, leather or fire proof boots and
gloves are required .
26. Seatbelts and roll cage/roll over
"T-Bar" required.
27. All exhaust must exit vertically at least 1 foot
above the top of the hood
28. Wheelie/anti-tip bars required. Wheelie bars must
not be more than 10" from the ground.
29. Rear weights not to extend greater than 6 inches
past the furthest point of the rear tire.
Front weight may not extend more than 11 feet from the center of the
rear axle.
30. Driver must be 18 years of age. 16 – 18 years old permitted with written
permission of parent or guardian, and that parent must be present at the track
at time of pull. Permission granted only
at the discretion of track officials.
31. All tractors subject to inspection at all times by
officials.
32. All rules to be interpreted by officials. Any unforeseen problems or oversights will be
ruled on by officials on sight. All general and safety rules apply.
33. Must have a front end fuel tank.
34. Must have a reverse/backup light.
35. Must have sled bumpers.
36. Fenders are mandatory.
37. Tractor must be 1957 or older.