1/4 MILE TRACK

Pure Stock

BODY: Stock production body only. Hoods may be gutted. Complete stock unaltered body required. Stock roof for car being raced, must be in stock location. (No lowering). All safety and general rules apply. Firewall may be altered for distributor clearance only if necessary. No engine set back or offset. No cut out holes in firewall. Any bars necessary to ensure rigid frame and radiator protection will be permitted behind the front and rear bumpers provided they do not extend past the body. Cars with more than 105" wheel base must weight minimum of 3,200 lbs. Any cars 99 up to 105 must weight minimum of 3,300 lbs. Aftermarket nosepieces allowed. May use 22 or 24 gauge sheet metal or aluminum for doors, but they must have factory bodylines. Metal dash is ok. If car has sheet metal deck it must it must be open on driver side. Must have original factory front and rear firewall and floor pan. No cutting of fender wells except for tire clearance only.  Front inner wheel well panels optional. Trunk lid may be gutted. Stop sign post material allowed between front and rear fenders on side of body to protect sheet metal and paint jobs. Front and rear firewalls must be in stock location. Stock unaltered floor pan required. Entire seat must be in front of rear edge of door. Minimum wheelbase is 99".

ENGINE: No 400 cubic inch engines Dished or flat top pistons only. Must be GM in GM, Ford in Ford, etc. No crossbreeding of parts. No stroked or de-stroked engines allowed. Stock rods for cubic inch engine used. Stock production heads. No vortec or double hump heads allowed. No O41 casting heads allowed (all heads without casting numbers will be illegal). No excessive milling. No porting, polishing or port matching allowed. Maximum intake valve 1.94, maximum exhaust valve 1.50. Stock unaltered cast iron 2-barrel intakes only. Screw in studs and guides plates allowed. No roller tip or roller rockers, no stud girdles allowed no roller lifters, no roller cams or ceramic lifters. Cam lift at 450 Max. No carburetor spacers, adapters only. Holley 4412 carburetor unaltered. Choke flap can be removed. No after market distributor, Stock distributor ignition only points or HEI, may run high output coil but no ignition box. Headers allowed with 1 5/8” maximum, with bolt on collector. Must put mufflers (112535) on the bolt on collector. Aluminum pulleys allowed on crank and water pump only.

CLUTCH AND TRANSMISSION: Single disc clutch only 10.1/2” minimum, No aluminum flywheel. Stock type flywheel to weigh no less than 14Lbs, Stock type pressure plate no less than 13Lbs.Stock disc type clutch and flywheel required. Stock torque converter (13”) required with automatic transmissions. Transmission may have shift kit installed. ¼” steel plate surrounding stock bell housing or blow proof bell housing required. No racing clutches or light flywheels, or small torque converters, or racing torque converters allowed. Functioning torque converters must weigh 38lbs. minimum.

FRAME: Stock frame for car body used. Uni-bodies MUST connect front and rear with tubing or use roll cage to strengthen frame, provided they do not extend past the body.

FRONT SUSPENSION: Must be stock as produced by the manufacturer. Shocks must be in stock location using stock mounts. No screw jacks. Racing springs & racing shocks allowed. Right front upper control arm may be reinforced for safety. Only stock proportioning valves are permitted. NO after market brake pedal allowed. Quick disconnect steering wheel & quick steer ok. All other steering components must be stock. No threaded adjustable buckets allowed.

REAR SUSPENSION: Stock as produced by the manufacturer, except rear end housing may be replaced with any 5 or 6 lug rear end. Ford 8” or 9” rear end ok (GM included). Stock suspension must be retained. Shocks must be in stock location. No add on traction devices, or modifications. Adjustable shackles and racing springs allowed no sliders. No adjustable lowering blocks, aluminum lowering blocks ok. No hiem joints allowed. Aftermarket bushings will be allowed. Rear end may be locked. May use production disc brakes. No threaded adjustable buckets allowed.

WHEELS AND TIRES: NO aluminum wheels. Maximum width 8” wheels, maximum footprint 9”, with air being raced Towel City recap tires only. No mud grips. Large racing lug nuts and reinforced center on wheels recommended. No cross grooving or siping of tires allowed. Bead lock on right rear allowed.

Anything not specified will revert back to stock.