MODIFIED STREET CLASS
Stock factory oem cylinder heads and blocks that are factory production line installed in production vehicles (factory castings will be checked at techs discretion)
Engine
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No aftermarket ignitions with adjustable timing control or electronic timing boxes (must be mounted in clear view)
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No engine swaps must have been available in that make and model big blocks allowed in ¾ ton and heavier only
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Single oem style carburetor must have choke provisions (no predator, 4500 dominator, and/or 4150 hp) or factory efi using gasoline or diesel only
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No nitrous allowed or any other power adders
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Gasoline engines must pull 17” of steady vacuum @1000 rpm max by tach and gauge provided by officials, to be checked on carburetor, intake, or throttle body ( ) no vacuum pumps except diesel
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Must have full street legal exhaust exiting six inches behind cab and exiting either down or out (headers allowed)
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After-market aluminum intake (dual plane) only allowed
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Must have factory engine accessories belt driven by the crankshaft (electric fans allowed)
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All mechanical fans must have a secured shroud
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Engine must be in stock location using factory type mounts (no motor plates)
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Radiator must be in front of engine ( ) no power adders(turbo, nitrous etc) unless factory equipped
Drive train/Suspension
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Tires must be uncut dot (all tires must be same diameter and width as marked on sidewall)
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No suspension or steering modifications other than lift kits
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No coil spring shocks, adjustable shocks and racing style shock
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No solid front axle conversions
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No trans brakes or other staging devices allowed in vehicle including manual valve body (no air or electric shifters)
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OEM style transfer case required
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No after-market chain drives allowed
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Must have functional original equipment brakes at all four wheels
Frame and body
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Street legal with all required street equipment (front bumpers, lights, wipers, exhaust, etc.)
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Gas tank and battery must be in factory location (no fuel cells allowed) battery must be secure
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Must retain all factory interior and exterior components (glass, dash, etc, racing seats allowed however must retain seating for two)
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Must have unmodified matching body and frame
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Minor trimming for tire clearance allowed
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Factory type bed floor or minimum of .092 carbon steel or 3/16”aluminum plate.
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May remove the doors from cj, yj, tj, scout, 66-77 bronco and 69-72 blazer.
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No fiberglass body panels unless factory produced (non functional hood scoops are allowed no greater than 4” in height) (no gutting or hulling of hoods)
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Must have all factory cross members in place
Paperwork/safety equipment
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Helmet and seat belts required
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Must have arm and leg restraints such as cloth doors, netting or safety bars if doors are removed vehicles
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Vehicles with factory removable tops may be removed w/min. Of 4 point roll bar protection
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All transmissions must have neutral or clutch switch safety switch
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All vehicles must have charged fire extinguisher.
