Street Stock


The GM 604 crate engine will be allowed in Street Stock for the 2017 season.

All 604 crates must meet IMCA legal standards including the seals. RPM limits will be enforced on the 604 crate engine at 6,800 RPM using one ignition or rev limiter. Legal ignition boxes allowed are: MSD 6AL p/n 6425, MSD p/n 8728 or MSD p/n 8727CT. Crate engine cars will be allowed a 5 inch in material height spoiler. Promoters reserve the right to adjust the crate engine rules as the season progresses if needed. The penalties for any crate engine rules infraction will be a 3week suspension, a $500 fine, and removal of all seals or seal bolt numbers before the car leaves tech area. This penalty will not allow the offender to run at Quad City Speedway, Davenport Speedway or Jackson County Speedway until the fine is paid and suspension is served, this includes car & driver.

Required helmets must be Snell Rated SA200S, SA20lO or SA 2015 Helmet. Drivers’ must have helmet shield or goggles. Helmets must be worn at all times including packing the racetrack, SFI approved full fire suit, fire retardant neck braces and gloves are required. Fire retardant shoes required. Roll bars must be padded around driver. 16 X 20 driver side ribbon or mesh type window net no accessories allowed on window net. Five point safety harnesses are required and must be securely mounted to roll cage using W’ diameter bolts. Aluminum racing seats only and must be securely fastened to roll cage. 360 degree drive shaft loop required and must be constructed of at least .25″ by 2″ steel mounted 6″ from the front of the drive shaft. Kill switch to be mounted within easy reach of driver and clearly marked “on/off”. Must have an additional master shut off switch mounted BEHIND driver seat on horizontal surface (floor is not acceptable), clearly marked “on/off’, and be easily accessible from outside of car.
New starting 2013: Rule Changes: (This is for all GM and Ford sport cars in paragraph below) * GM and Ford sports car chassis allowed. 1979 to 2004 Mustang, Thunderbird, Capri
1982 thru 2002 Camaro, firebird, trans am. * Wheel base for all cars will be 102 inches. *Rack and pinion steering allowed on all chassis it came factory on no modification and must remain in stock location. No after market or racing rack and pinion allowed. *GM and Ford Strut front end cars may run coil over springs on front strut with threaded adjuster. *Must retain stock front strut towers, rear springs will remain 4.5 inch rule we have now. *GM chassis cars with factory rear torque arm will be allowed to shorten arm by 12 inches from factory length to allow mounting to chassis, fabricated arm allowed, no spring or shock may be attached to the torque arm rear control arms are same as current rule, must be stock length but may be aftermarket. *Upper control arms on all cars may be up to 1 inch tolerance from stock length for pinion angle adjustment. * All GM and Ford sport car chassis must maintain stock floor and firewall. * Firewall may be altered for engine clearance, but must be steel and fully sealed to protect driver. *Hood may be steel, aluminum, or fiberglass.
Protest rule: * Any car finishing in the feature 1st through 4th may be protested by cars finishing 5th on back on lead lap of racing and racing competitively. *Car protesting must proceed to tech area directly after race. Driver of protesting car must present $200.00 to tech official. * Protesting driver must state exactly what they are protesting and on what car. *Only one item allowed per protest. *If protested car is found illegal, the $200.00 fee is returned to protester, and the protested car is disqualified with no points and no money awarded for that night racing event.
*If protested car is legal on protested item, the $200.00 is given to the protested car, and that car is not penalized. *Only one protest allowed per driver per night.

Shock claim:

$100.00 shock claim:
* Any car finishing the feature 1st thought 4th is eligible to have its shocks claimed by the cars finishing 5th on back. *Car claiming shocks must be on the lead lap of the race at the end of the race. *Car claiming shocks must present claim money to Tech Official in tech area within 5 minutes of end of race. *Only Driver of car claiming shocks can give claim money to Official. Driver must have the claim money when entering tech area. *No exchange of money between anyone other than claiming driver and tech official allowed. *You may only claim (1) other cars shocks on any race night. You may claim up to all 4 shocks on the car being claimed. No Multiple car shocks claims allowed. *To claim, your car must have raced in at least 50% of all the races held at the speedway and must have raced in two consecutive events prior to claiming. *Claiming driver can claim up to 4 shocks per claim on one car and may not claim a cars shocks more than one time during the racing season.
Chassis: *Any U.S. manufactured full body rear wheel drive passenger car with full frame or uni-body. Minimum 108″ wheelbase. *Rub rails no bigger than 1″ by 2″ may be attached to the body from fender well to fender well and rear of quarter panel, flush with body and painted to march car.
Roll Cage: *All cars must have minimum 4 point roll cage. *Material must not be less than 1.625″ 0.0. seamless tubing and must have a wall thickness of .095″. *Low carbon, mild steel tubing is recommended. *other materials are subject to prior approval. *No iron pipe or square tubing allowed. *Must be electric welded and well constructed. *No brazing or soldering allowed.
Location: *No more than 4P’ from top center of windshield to front edge of rear hoop. *Top halo must be no less than 40″ across, inside to inside. *On uni-body cars, cage will be mounted to four 114″ plates and mounted to the floor with four 12″ bolts per plate.
*Must have minimum of one cross bar in the top of halo of roll cage. *May have front hoop from roll cage forward to protect radiator.
* Tubing may be added from top of roll cage to rear frame section to protect fuel cell. *May have two bars for protection in front of radiator, behind bumper within confines of body, no wider than stock frame horns. *May tie front horns together. * Must have minimum of three windshield bars in front of driver.
Driver Door Bars: *Must be as parallel with the ground as possible and located perpendicular to the driver so as to provide maximum protection for driver without causing undue difficulty in getting into or out of vehicle. * Material must not be less than 1.5″ O.D. tubing and must have a wall thickness of .095”.
* Three horizontal door bars on both sides are mandatory and must be welded to the front and rear roll cage members. *Minimum of four uprights tied from frame to top door bar on driver side, three on passenger side.
Body: * Must be neat appearing. *All windows must remain open, except opera windows Maximum 7″ visor may be added to top of windshield opening. *Must have windshield pillars, painted roll bars are not acceptable. *Minimum 12″ vertical opening to left and right sides. *All holes in front and rear firewall are to be covered in metal or aluminum plating. *No mirrors allowed. *Aluminum body allowed but must be resemble stock OEM pieces.
*Roof may not exceed 3″of rake from the rear of roof to the front of roof. *No body skirting below body lines. *Body may be gutted. * Back of hood must be sealed off from driver compartment.
* Spoilers are no longer allowed unless with a crate engine.
* Maximum 4 braces including side braces: Maximum 3″ material height at front and must run in straight line to a maximum 7″ material height at rear. * Maximum 18″ from front of brace to rear of body. *Front bumper must be OEM with no sharp edges. *No Fender Flares allowed. * May use stock noses from Performance or Five Star Catalogue. All factory nose pieces are also allowed. (NO LATE MODEL NOSE PIECES OR BAT WINGS ALLOWED).
* Aftermarket plastic tail pieces OK.
*Rear of car must be fully closed in.
* Rear bumper not covered must have rounded ends that are connected to the body or the frame.
* You will not be allowed to compete without front and/or rear bumper. *Front bumper may have one round bar, maximum 1″ diameter, to support nose piece.
* This bar may be 8″ maximum in front of the bumper.
* Minimum 24″ tall number on both sides of car.
* Must have minimum 6″ tall car number visible from front of car.
Suspension: * Any OEM, car or truck rear end.
* No quick-change devices *No cambered rear ends * Steering and front/rear suspension components must be unaltered OEM, in original location, and match frame. * Aftermarket, stock type non-adjustable trailing arms allowed.
* Upper and Lower trailing arms must be stock length.
* Measurements for the control arms are as follows:
* 73-77 GM A-body-upper 11.25″, lower 22.375″, 78-88 GM g-body-upper 11.25″, lower 19.25″.
* You may be asked by official to remove control arms for inspection. * Mono-ball bushings allowed. * OEM rubber bushings may not be altered in any way (no drilling of rubber, egg shaped holes, etc.) *Trailing arm mounts must be in stock location at frame, top and bottom.
* Must be within 2″ of stock location on upper control arm mount at rear end, lower control mount at rear end bolt hole must be 1 1/8″ to 3.5″ of bottom of housing.
* All rear dimensions must be within diagram on following page. * Weight jacks are optional, no hydraulic, ratchet or electric weight jacks anywhere on car.
* Lower A-frames and mounts cannot be altered or moved. *Aftermarket cross shaft type tubular upper A-frames allowed. *No aluminum or fiberglass suspension or rear end parts allowed except rear hub assembly and fiberglass leaf springs.
* Steel, no reservoir, racing shocks only. * Shocks do not have to be in stock location. * 4.5 Diameter Coil Springs minimum.
Tires and Wheels: *IMCA G60 Hoosier required and must be mounted on a steel wheel with a maximum width of8″.
* Bead lock allowed on right side only. * Bolt-in plastic mud cap or foam only. *No snap-in caps allowed. * Must use only steel bolts. * Grinding on tires allowed. * Grooving in stock grooves only. * And sipping is allowed. *No softening of tires allowed. *No recaps allowed.
Brakes: * Must be OEM, operative four wheels, drum or disc combination. *No floating brakes. *No brake shut-off devices. * Proportioning valve allowed, front to rear only.
Exhaust: * Must be mounted in such a way as to direct spent gases away from cockpit of vehicle and away from areas of possible fuel spillage. *No exhaust through body panels or fenders_
Fuel Cells: * Racing fuel cells are mandatory and must be mounted by at least 2 steel straps 2″ wide round fuel cell. *Fuel cells must be protected in rear by roll cage tubing securely mounted. *No part of fuel cell may be lower than protective tubing. * Check valve required. * If fuel cell does not have aircraft style positive seal filler neck/cap system; a flapper, spring or ball type filler rollover valve is required. *Fuel cells must be enclosed in metal container. * Firewall required between driver and fuel cell. * All cell mounts must be steel, attached to frame or cage. *No adjustable fuel cell mounts. * Fuel lines through driver compartment must be in steel pipe or conduit. *No fuel filters in driver compartment. * Gas only. * No alcohol or performance-enhancing additives.
* Must weigh minimum 2900 lbs with driver after race. * Loose object and/or weights will not be allowed in driver compartment. * All weights added to vehicle must be securely mounted to tubing or frame with at least two W’ bolts and painted white with car number. *No weights allowed outside of the body. * No weights attached above the deck of the car. * Stacked weights will be at the discretion of tech inspector.
Battery: *Must be Securely mounted and shielded. * Positive post must be covered. * Approved type racing battery mount. * Plastic battery box properly mounted acceptable. *ABSOLUTELY NO FULL METAL BATTERY BOXES.
Transmission: * Must have at least one gear forward and one reverse, plus a neutral position. *With the motor running and the car not moving, driver must be able to engage car in gear and move forward, then backward. *Only OEM production type transmissions will be allowed. *No internal clutch transmissions allowed. *Clutch must be in original location and may be multi disc. * Three speed, four speed and automatic allowed. *No five speed transmissions, in and out boxes or quick change devices allowed. * All manual transmissions must have unaltered OEM case. * Automatic transmissions must remain in OEM stock appearing automatic case. SFI approved stock replacement case allowed.
Manual: *Must have explosion-proof steel bell housing – minimum 270 degrees around top of clutch/flywheel area.
Automatic: * Aluminum OEM bell housing may be replaced with aftermarket explosion-proof aluminum bell housing. Original OEM bell housing must have approved scatter shield constructed of minimum 0.125 inch by three inch steel, 270 degrees around flex plate. Drive shaft must be steel and painted white.
Engine: *Must be stock appearing. *Absolutely no changes allowed.
* Engine setback as follows, measured from rear of engine block bell housing flange to center line of rear axle tube. * (Small block engines 88 Yz”, Big block engines 83 Yz”,) * OEM firing order cannot be changed. * All engines used in competition must be able to be used in a conventional passenger car without alterations. * Motor mounts cannot be removed or altered on engine block. * Castings and fitting must not be changed. * Any carburetor is allowed. *No air funneling devices. *No roller cams allowed. *No limited on engine cubic inches. * All cars must have an operable starter. * Carburetor adapter plate or spacer may be used. *No aluminum heads or blocks. * Aluminum water pumps allowed. * Stock, push rod type fuel pumps only. * Cooling system may be modified. *Any over flow tubes must be directed to the ground, inside frame rails. *No external cooling devices allowed.
Traction control: *No computers allowed on race car, including, but not limited to, electronic traction control devices. * Any driver caught with a traction control device will be subject to a fine, seizure of illegal parts andlor a lifetime suspension from events and a notice ofthe details of suspension will be sent to all promoters in Eastern Iowa and Western Illinois.
Car Protest Rules: *Track officials have the right to protest any car, at any time, at no charge. *Protest is in effect of opening night for all eligible drivers and driver must have been at track on opening night to be eligible to protest second night of season.
Any rule, covered or not covered, will be interpreted by track officials. Official’s decisions on scoring and rules are final. Promoter retains the right to change and/or interpret the rules in the interest of better competition or safety.