Pro Slot S16d, Parma S16d or smaller like JK Hawk 7 or Pro Slot 16d
Any 4 ½” steel chassis
1/8 or 3/32 solid steel rear axle
Any pitch straight or angle pinion
Any pitch plastic gear
3/32 or larger full length front axles
Must run front tires, minimum size is 3/8 (.375) width x 5/8 (.625) diameter on aluminum or plastic wheels. Minimum 2 inches separation between front tires.
May run any height guide flag & shims with aluminum, steel, plastic or brass nut & approved braids
1/16 (.062) tech tool must clear gear and chassis
Axle bushing holes may be altered in chassis to lower or raise bushings.
Bushings may be soldered in
No bearings allowed
No excessive chassis contact to the track
Any approved rear tires, no minimum size
Tires may be changed but must pass tech tool height & width when changed, even during the race and approved by the Race Director
Rear tread width must pass tech tool before, during & after race
Any approved 1950’s, 1960’s or 1970’s model cars lettered to duplicate NASCAR Grand National cars of that era
Front must be cut using molded cut line on all bodies that provide one. Outisite bodies without cutline must retain defined molded front ends.
Clearance for guide flag is allowed
Must be painted with numbers
Cars should be lettered with sponsors