Engine

  • Maximum displacement of 500 cubic inch, 3% over permitted.

  • Pump gasoline or racing gasoline only. No alcohol, ethanol, nitrous oxide, nitro methane or propane allowed.

  • OEM cast iron blocks only. Block must be offered in vehicle production per year of vehicle.

  • Aftermarket cast iron heads are permitted. OEM aluminum heads allowed only if vehicle was equipped from factory.

  • Aftermarket cast iron intakes are permitted. No sheet metal intakes.

  • Naturally aspirated engines only. No turbos.

  • Engine programmers are permitted.

  • Single carburetors only. 4150 Holley flange only. No 4500, Dominators, King Demons, SV1, or Split Carbs. Fuel injection is permitted only if equipped with vehicle from factory. OEM fuel injection only will be allowed. No aftermarket.

  • Vehicle must have exhaust system with fully functioning muffler. Exhaust must extend past the rearmost point of the cab.

  • Wet sump engine oil systems only. No dry sumps.

  • Radiator must have a sufficient overflow reservoir.

  • Engines must pull a minimum vacuum of 10 in-Hg at 1250 maximum RPM’s. No electric or belt driven vacuum pumps allowed. An accessible vacuum port must be provided for testing.


Hitch

  • Hitch height: 26” maximum.

  • Hitch point must have a 3.5” hole minimum.

  • Must be a Reese style hitch/receiver. No pulling from bumper. No shackles or clevises.

  • Hitch must use hitch pin. Bolts are prohibited.

  • Hitch must be stationary in all directions.

  • A minimum of 42” is required from the centerline of the rear axle to the front of the hitch cross member.

  • Hitch must be the rearmost component on vehicle.


Chassis

  • Factory front bumpers only.

  • No batteries are to be located inside cab of vehicle unless they are in a sealed and covered box.

  • Factory steering boxes only. Electric over hydraulic steering is permitted but must drive OEM steering assembly.

  • Any weight must be securely fastened and not extend forward of the front bumper. Any weight falling from vehicle during a competitive pull will result in disqualification.

  • Plow mounts and brush guards are allowed. Plow pump must be removed. No homemade plow mounts or brush guards. All brackets must include a 3/8” hole for inspection.

  • Must have full set of functioning head lights.

  • Ladder bars are permitted but must be bolted to chassis. No welding.

  • Must have 1” minimum travel in front and rear suspension. Suspension must be removable.

  • Any suspension air bags must contain less than 10 PSI pressure.

  • Absolutely no electronic traction control devices.

  • Factory spec wheelbase only.

  • Complete factory beds only. Beds and toolboxes must be mounted securely. Any bed without a full floor must be covered.

  • DOT tires only. Max 35”. No cuts, bars, or siping. Any width is permitted. DOT rims only.

  • No wheel spacers.

  • No tire chains.

  • U-joint shields and driveline hoops are mandatory. All u-joints must be covered with a 360° loop and be at least 6” wide constructed of 1/8” steel or 3/16” aluminum. Driveline hoops must be 360° loop and be at least 1” wide constructed of 1/8” steel or 3/16” aluminum.

  • One ton rear axle or less permitted. No dual rear wheels.

  • No open drivelines or drop boxes.

  • Fuel tanks must remain in the factory location or in the bed behind the cab. Relocated tanks must be SFI approved.

  • Brakes must be fully functional on all 4 corners of the vehicle. No driveline brakes permitted.

  • All automatic transmissions must be covered by an SFI approved scatter blanket.*

  • All manual transmissions must have an SFI approved blow proof housing.*

  • No centrifugal clutches.

  • All flywheels must be SFI approved.*

  • Harmonic balancers must be SFI approved.*


  • Any competitor may protest another vehicle within 10 minutes following the completion of the class. A full tech inspection will involve both the protested vehicle and the vehicle of the protestor. A $300 fee must accompany the protest. If the protested vehicle is found to be illegal, the protestor will be refunded $250 and the protested vehicle will be disqualified. If the protested vehicle is found to be legal, the protested competitor will receive $250. $50 of the protest fee will be assessed to Maumee Valley Pullers. If both vehicles are found to be illegal, both vehicles will be disqualified and the total protest fee will be assessed to Maumee Valley Pullers. Any vehicle found to be illegal will forfeit their purse money from the event back to Maumee Valley Pullers and will be allowed to run only exhibition from that point forward until proven to be legal.

  • The class winner may be subject to engine pump. If found to be legal, the engine will be sealed and not be subject to pump again unless the seal is found to be broken or tampered with. If vehicle is found to be illegal or the driver chooses not to pump, they will then forfeit their purse money from the event back to Maumee Valley Pullers and will be allowed to run only exhibition from that point forward until proven to be legal.

  • The class winner may also be subject to vacuum test. If found to be illegal, or the driver chooses to refuse the test, they will then forfeit their purse from the event back to Maumee Valley Pullers and will be allowed to only run exhibition from that point forward until proven legal.

Tech


*Rule is exempt from any competitor with a legal Street Stock Gas vehicle wishing to enter the Hot Street Gas class.