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Street Stocks/Sportsman - 2014-2015 Rules




The rules and/ or regulations set forth herein are designed to provide the orderly conduct of racing events and to establish minimum acceptance requirements for such auto racing events.  These rules shall govern the condition of all events, and by participating in these events, all participants are deemed to have complied with these rules.


These rules and regulations are intended as a guide for the conduct of auto racing at South Sound Speedway and are in no way a guarantee against injury, or death to a participant, spectator, officials, or others.

The Race Director and/or Technical Director shall be empowered to permit minor deviation from any of the specifications or rules herein, or impose any further restrictions that, in their opinion, do not alter the minimum acceptable requirements.


Any interpretation of, or deviation from these specifications or rules is left to the discretion of the Race Director and/or Technical Officials.  Their decision will be final.

This class combines the existing Street Stock car with the former Limited Late Model/Sportsman type car in an effort to create bigger fields of cars and a more exciting race for fans and drivers.  There is a significant difference between cars however the speeds and lap times should be very similar with the weight difference and the tire. Weight may need to be adjusted to create a fair balance in competition.




(A)       Street Stocks are open to all American made, steel bodied hard top sedans or coupes.  No station wagons, jeeps, four wheel drives, convertibles, or trans axle type cars will be allowed. Minimum wheelbase is 101” with a minimum 4" ride height.  Percentages must be maintained before the event, a weight allowance for fuel will be given when scaled following the main event.  All cars must weigh 3100 lbs minimum weight with Driver, maximum 56% left side weight.  Maximum 67” tread width measured at center of spindle. 10" wheels may be used with American Racer 970 tire.

(B)       A Street Stock car may add any or all of the following parts for a 50lbs addition.  Weight Jacks, Out board pro WB series shocks, Aftermarket Upper A Plates and any length Upper A Frame, and a Slapper style 1 piece sway bar max 1 ¼ inch.

(C)       Sportsman are open to all American made sedans or coupes.  No station wagons, jeeps, four wheel drives, convertibles, or trans axle type cars will be allowed. Minimum wheelbase is 101”.  Percentages must be maintained before the event, a weight allowance for fuel will be given when scaled following the main event.  All cars must weigh 3200 lbs minimum weight with Driver, maximum 56% left side weight.  Maximum 69” tread width measured at center of spindle. 10” wheels may be used with American Racer 970 tire. Minimum 4" ride height.

(D)       ALL cars will be required to have a transponder on their car.  You can buy it or rent it from Race Car Supply. Transponder must be mounted 15” from the center of the rear end to the leading edge of the transponder.



(A)       Street Stock bodies must remain stock appearing. After market front and rear bumper covers allowed.  Fiberglass or plastic parts allowed.  Aluminum doors allowed.  All body parts will remain in tact.  Wheel opening may be trimmed for tire clearance only.  Front inner fenders, hood, trunk lid, roof and door inner panels may be removed.  All other interior panels including trunk (except to fit fuel cell) must remain stock.  Must have stock or fab steel front firewall, (full length from side to side) min 22 gauge steel.  Firewall must be in stock location on frame.  Must have stock floor pan from firewall to rear seat floor.  May remove sections of passenger side floor for exhaust, etc., but must retain complete center hump section.  Rear firewall made of .035 minimum sheet metal from side to side is mandatory. 

(B)       Sportsman bodies must be fiberglass or aluminum; all bodies must maintain original dimensions.  Bodies must be installed in a professional manner and meet manufactures guidelines.  No exotic wedge type or homemade bodies allowed.

(C)       Minimum 47” roof height required, measured 10” back from top edge of the front windshield.  Maximum 35” quarter panel height at rear of panel.  Maximum 15” ground clearance at rear quarter panels and rear bumper cover.

(D)       All cars must have complete bodies.  Front and rear spoilers are permitted, must be stock or aftermarket parts.  Use of Homemade front air dams and nose pieces (in front of fenders) allowed.  No wedge noses allowed.  Air dams and side skirts must have a minimum ground clearance of 4”.  Body may be welded to frame.  All bodies must be acceptable to Technical Officials.   

 (E)      Hood must fit in original position and maintain the original configuration.  A minimum of four (4) hood pins at the leading edge of the hood and two (2) hood pins or hinges at the trailing edge.  Hood scoops are allowed.  All body parts must be fastened securely and in a manner acceptable to Technical Officials.

(F)       A stock and/or aftermarket non-adjustable rear spoiler, not to exceed a maximum of 6.5” in height off the deck lid.  The spoiler must maintain the same contour as the rear of the car, must be mounted with no less then 1/4” bolts and flat washers.  No pop rivets or screws allowed, and mounted no further rearward than the trailing edge of the stock dimension trunk, and must be centered on the rear of the car.  Spoiler can be constructed of aluminum or 1/8” Lexan.  It is mandatory that the top 5” full length of the rear spoiler on all cars is 1/8” thick, flat, clear Lexan.  Rudders, braces, wires, and forward mounting brackets permitted and must be mounted with no less then 1/4” bolts and flat washers.  No pop rivets or screws allowed. 

(G)      NO decals on spoiler of any kind allowed.

(H)       The trunk must be able to be opened for inspection purposes.  Positive metal fasteners or pins must be used on the right and left sides of trunk. 

(I)        It is mandatory to have a full dashboard if stock dash is removed.

(J)        No streamlining allowed, no under and/or belly pans allowed.

(K)      Front radiator protection hoops are allowed but cannot extend any further ahead than the front grill.

(L)       Windshield is mandatory, but may be replaced with minimum of 1/8” Lexan.  Side port windows and rear windows allowed and must use a minimum of 1/8” Lexan.  Must have a minimum of two (2) – three (3) recommended – vertical braces inside the windshield spaced at least 6” apart and centered.  Must be welded or bolted with a minimum of 1/4” bolts and flat washers to the roof hoop and the dash.  Materials permitted are: 3/4” x .065 tubing, 1/8” x 1” flat bar or 1/2” solid. 

(M)      All flammable material must be removed, along with chrome strips, door handles and ornaments, etc.

(N)       All glass must be removed with the exception of the stock front windshield.  This includes headlights, taillights, etc.

(O)       You may have a left side maximum 4” round mirror that cannot protrude outside the bodyline of the car.  The inside mirror can be a maximum of 17” x 3”.

(P)       All cars must have bumper mounted in stock location.  Front and rear bumpers must have straps either welded or bolted flush to the quarter panels or fenders if outside nose and tail.



(A)       All working suspension must be stock.  All components must be OEM for the make, model, and year of the car. All steering components must be stock for the make, model, and year of the car.  Tie rods may be reinforced.  Rear control arms must remain stock unaltered for the make, model, and year of car and must remain in stock location.  All bushings must remain in stock location. Polyurethane, Teflon, etc. suspension bushings are optional.  Heavy-duty ball joints are permitted.  No adjustable ball joints permitted. Generation 3 camaros/firebirds and similar vehicles must retain the factory strut/shock tower and rear section of the inner fender in the original factory location but may be tied into the front hoop.. The inner fender must be attached to the fire wall in the original location. Towers may not be leaned, angled or moved in any direction. All original factory mounting points must be maintained. The top center portion of the tower inside of the factory (3) mounting points may be removed. Adjustable plates may be used as long as plates are mounted on tower at original factory mounting points. Pan hard bar must use stock mounts and mounting location holes, Torque arm must be in factory location.  Upper A Frame mounts may be relocated, but stock shock location retained. Tubular 8.5”, 9” or 9.5” upper A frames may be used.

(B)       Frames must remain stock for make, model, and year of car.  No frame alterations allowed.  No alterations to lower height ,gain suspension travel, or wheelbase.  Minimum ride height of frame and all components is 4” with Driver out of the car.

(C)       Rated or Racing springs allowed, minimum 5” coil. Springs must remain in the stock location and mounting points. Adjustable lowering block.  Adjustable spring spacers allowed in spring. NO Jacking Bolts allowed. NO weight controlling devices of any sort allowed. Cars with pre existing rear weight jacks may double nut and tack weld so non adjustable at the track. Leaf spring sliders ok.

(D)       Any stock mounted steel shock permitted in stock location.

(E)       Car will have brakes in good working condition on all four corners of the car.  Calipers must be stock single piston cast iron. Rear disc brakes ok with stock cast iron calipers. Aftermarket pedals and master cylinders may be used.   

(F)       Rear ends may be stock production OEM. Steel ford 9” rear ends will be allowed in all cars.  Floaters are allowed.  Spools, mini spools, limited slip or posi-type rear ends allowed. 

(G)      No cambered rear ends allowed.

 (H)      Non 9” rear ends Right rear axle must be aftermarket of 1541L alloy or better.  Must have receipt of proof of what axle you have for Technical inspection.  You may be asked to pull the axel.  Lug studs must be a minimum 1/2” diameter, five studs per wheel.  Lug stud threads must fill entire threaded body of lug nut. C-Clip eliminator kits for rear axles allowed. 

(I)        Wheels:     Maximum 10” steel wheels permitted.  Must be approved for Circle, Bassett, Aero, etc.  No remanufactured or homemade wheels.  No bead lock wheels permitted or extreme beads.

 (J)       TIRES:           American Racer 970 sold at RCS.


(A)       Any fabricated car with a stock or Fabricated front clip using 5 inch or larger non coil over springs allowed. Height adjustable inner pivots on the lower control arm is not allowed. If the clip has multiple holes or slot simply tack weld a washer utilizing the desired position. Front spring angles must be vertical within reason. Max tread width using stock lowers "ford ok" 69 inches, Max tread width using fabricated front lowers 67 inches.

(B)       Stock front clip may be modified for height of engine on top of cross member and in spring pocket and fuel pump areas.

(C)       Pro WB series shock only. No coil over's up front. Rear coil over's ok

(D)       Floater rear end mandatory. Quick change with spool or locker type allowed

(E)       Steel spindles mandatory, Wide five Hubs allowed. Aftermarket calipers ok. If using single piston cast iron front calipers deduct 50lbs.

(F)        Steering box with aftermarket drag link and Pitman arm ok, Aftermarket Rack and Pinion allowed but add 50lbs in front of the lower ball joint, 25lbs on each side.

(G)      Rear suspension type optional.  Leaf springs and 4 links ok, 3 link may only use 1 single solid top link bar “no spring or biscuit style” and only 1 piece trailing arms. Pan hard bar or J bar ok.

(H)       One piece sway bar only, maximum 11/4 inch. No 3 piece bars. No rear sway bar.

(I)        Wheels:     Maximum 10” steel wheels permitted.  Must be approved for Circle, Bassett, Aero, etc.  No remanufactured or homemade wheels.  No bead lock wheels permitted or extreme beads.

 (J)       TIRES:           American Racer 970 sold at RCS.



(A)       Stock production V-8 cast iron engines only. OEM block only. No Dart/Bow tie ect. Wet sump engines only no external oil pumps.

 (B)      All street stock engines must be mounted in stock location or most forward spark plug in line with the lower ball joint. Must be centered between the frame rails. Sportsman cars allowed 2" engine set back.

(C)       Stock OEM cast iron heads, World Products S/R, Dart SS 10024370, Vortec or Bowtie heads must be used. No Vortec Bowtie.  No port matching, porting, polishing or deburring of port and/or combustion chamber.  No angle milling of heads.  Any flat tappet cam only except crate engines.

(D)       Any unaltered 2-barrel or 4-barrel intake manifold only.  No port matching, porting, polishing, or deburring or runners. Headers are  permitted.

(E)       CARBURETOR:      4412 Holley 500 cfm 2 bbl required on all engines factory 361 cu in and above. 4150 Holley 750 cfm 4 bbl allowed on all engines factory size 360 cu inch and below. Choke horn may be removed on all carbs, pro form center sections ok on 4150. No fuel injection or electric fuel pumps allowed.  Maximum 1” spacer and/or adapter permitted between the carburetor and intake manifold.  Carburetor must have an air cleaner on at all times.  Maximum air filter element size 4” x 16”.  K & N filters allowed.  No foam air cleaners. 

(F)       Electronic distributors are permitted, equipped with a magnetic pick up, gear driven and mounted in stock location.  No magnetos allowed.

(G)      NO traction control.

(H)       Oil coolers permitted, but must not be mounted in the Drivers compartment.

(I)        Transmissions will be stock unaltered OEM.  No aftermarket transmissions and/or parts.  Transmissions must be bolted directly to engine or bell housing without alteration.    No aluminum or alloy fly wheel. Reverse gear must be in working order.  All transmissions are subject to the Technical Official’s approval. Minimum 5.5 inch clutch.

 (J)       Must have steel scatter shield or reinforced belting of 3/8” minimum thickness material.  Entire transmission hump, to the end of the transmission, must be covered if belt material is used.  Belt material must be securely fastened.  If using 7.25 or smaller clutch then aluminum bell housing is ok with no belting.

(K)      Drive shaft and universals must be similar in design to standard factory production.  Shaft must be steel, or aluminum only.  Must be painted white and be a minimum of 2 3/4” in diameter.  The drive shaft must be surrounded by either two (2) 360 degree solid steel straps no less than 2” x .125 or chain 1/4” thick or cable 1/4” thick and be placed not more than 12” from each universal joint and fastened to the floor or cross member.

(L)       The GM sealed crate engine, part # 88958604  must conform to the Super Late Model crate engine rules, must use an unaltered Holley 80541-1 or80541-2 Carburetor. 604 engine can deduct 50 lbs from total weight.

(M)      The GM sealed crate engine, part # 88958602/19258602  must conform to  Sealed crate engine rules, must use an unaltered Holley 80541-1 or80541-2,  Carburetor. 602 engine can deduct 100 lbs from total weight. weight may be adjusted to balance competition





1.         A roll cage is mandatory.  It must be fabricated with a minimum of 1 3/4” x .095 round ERW or DOM tubing.  Roll cage must have main hoop, roof hoop, two (2) A-post bars, dash and main hoop spreader bars and main hoop diagonal bar.  Minimum of three (3) door bars on each side.  Left side door bars must radius out to within 1” of the door skin.  It is mandatory that a 10 gauge steel plate completely cover all left side door bars from front to rear and top to bottom, and be solidly welded in place.  Removal of left inner door panel optional.  Right inner door panel may be gutted if door bars extend past inner door panel.  Roll cage legs must be attached to the frame rails and not to the floor pan.  Dash bar must go over top of the steering column.  A minimum of two (2) bars must extend from the top of the main cage, through the rear firewall, to within 6” of the rear cross member of the frame.  Front hoop is allowed, must be a minimum of 1 3/4” x .095 and cannot extend past the front grill.  All overhead welds must be gusseted. Rear frame rails must remain stock and complete.

2.         Roll bars in Driver’s area must be padded.




1.         The use of a commercially manufactured fuel cell is mandatory.  The maximum capacity, including filler spout and overflow vent check valves is 22 gallons.  Filler spout and overflow check valves are required.  The fuel cell vent must exit out of the trunk area on the left rear side of the car.  No materials other than standard foam supplied by the fuel cell manufacturer are permitted to make the fuel cell meet the 22-gallon capacity.  Minimum ground clearance is 10".

2.         Fuel cell container is required.  The fuel cell must be enclosed in a container of not less than 22 gauge steel.

3.         Fuel cell and fuel cell container must be fastened to the frame in a recessed frame support as far forward in the trunk area and at an equal distance between the frame rails.

4.         Fuel cell and the fuel cell container must be secured with 1”x1” x .065 steel tubing.  Not less than two (2) lengthwise, and two (2) crosswise, and two (2) across the top, evenly spaced at the top and must bolt to container support frame.  The support frame must have two (2) tubes that are welded to and extend between the left and right frame rails.  Three (3) tubes must be evenly spaced across the recessed well (front to rear).  These tubes must be welded to the cross support tubes and extend down the front side, rear side, and under the fuel cell container.  If the fuel cell container has a bolt-on top, it must be bolted together with a minimum of 1/4” diameter bolts spaced a maximum of 4” apart.  If the fuel cell container has a bolt in end panel, it must be fastened together with a minimum 10/32” diameter screws with nuts spaced a maximum of 4” apart.  No sheet metal screws or pop rivets are to be used to secure to top or end panel of a fuel cell.

5.         A protective bar, minimum 1 3/4" x .090 must extend below the rear frame section behind the fuel cell.  This protective bar must be as wide at the rear frame rails and extend as low as the bottom of the cell with two (2) vertical uprights evenly spaced between the frame rails and attached to the rear cross member.  Two (2) support bars; one (1) located on each corner must angle upwards and be welded to the rear frame rails.

6.         A reinforcement plate, of not less than 14 gauge (0.078) inch thick magnetic flat steel, must be installed behind the fuel cell container.  The plate must extend the entire width and height of the fuel cell container.  The plate must be welded in the spaces between the rear cross member and/or the cross bracing at the rear of the rear sub frame.  It must be welded with a 1” weld, spaced a maximum of 4” apart.

7.         FUEL LINE:  If your fuel line runs through the Driver’s compartment, then the outside of the fuel line MUST be painted RED or wrapped with RED duct tape.  Take a BLACK marker and write on the outside clearly and in big letters, three (3) or more places:  “FUEL LINE”. Fuel line may be run under car but must be mounted away from exhaust and moving suspension. 

8.         No exotic and/or fuel additives allowed.  Fuel will comply with ASTM D4814, Standard Specification for Automotive Spark Ignition Fuel.  No electric fuel pumps, no fuel cooling devices, no NOS, no Oxygen bearing agents, no Nitro, no HRB-11.

(B)     SEATS: 

Only approved, custom manufactured, aluminum seats are permitted, Minimum .090 thickness required.  It is recommended to use a containment seat. Leg extensions on both sides also recommended.  A padded headrest is mandatory.  Seat must be mounted to the roll cage, not the floor pan.  A minimum of four (4) Grade 8, 1/2" bolts, and flat washers must be used.

(C)    BELTS: 

A quick release lap belt no less than 3" wide is required.  Both ends of the lap belt and both ends of the shoulder harness must be fastened to the roll bar with Grade 8 bolts not less than 1/2" in diameter.  The shoulder harness and lap belts must be bolted so that the ends of the belts move freely.  Shoulder harness must be no less than 3" wide and must come from behind driver's seat max 3” below the drivers shoulders or less than 10 degree’s.  Where the harness crosses the roll cage, it must pass through a steel guide welded to the cage that will prevent the harness from sliding side to side.  Shoulder harness inertia reels cannot be used.  A center (crotch) or submarine belt must be mounted to the lower seat frame at the bottom.  Where the belt passes through the seat edges, it must have a grommet installed, be rolled and/or padded to prevent cutting.  All seat belts and shoulder harnesses must connect at the lap belt with an approved quick release buckle.  Seat belts must be dated by the manufacturer and must not be used beyond five (5) years after the manufacture date.  If a HANS device is being used, then the HANS style seat belts may be used.



 It will be mandatory for ALL Drivers to wear a helmet carrying a valid, orange SA2005 or newer, standard Snell sticker,or a sfi 31.1 rating at all times while on the racing surface.  NO motorcycle helmets and NO “M” Snell sticker helmets.  Helmets must accompany the car at time of all inspections.  It is strongly recommended that all Drivers record blood type and RH factor, plus any major medical allergies to adhesive tape label to outside back of helmet.

(E)     CLOTHING: 

Drivers must wear an approved Nomex or Proban driving suit at all times when the car is on the track.  Driving suits must effectively cover entire body and meet a minimum sfi 3.2A/1 rating.  It is strongly recommended that the Drivers wear Nomex underwear, headgear, socks, gloves and shoes made of fire resistant material.

 (F)    WINDOW NET: 

A nylon window screen is mandatory; The window screen must be a rib type, made from 1" wide nylon material with a maximum of 1-3/4" square opening between the ribs. The minimum window screen size shall be 22" wide by 16" high.  It must release from top with seat belt type latches, and it must be fastened to the roll cage top bar and highest Drivers door bar on the cage.  All window net mounts must be welded to the roll cage. WINDOW NET:  Window net must be dated by the manufacturer, must meet SFI specifications, and must not be used beyond five (5) years after the manufacture date. 


It is mandatory to have a Dry charged 2-1/2 lb. minimum, with quick release fire extinguisher.  This fire extinguisher must be securely mounted to the frame and/or roll cage structure and must not use hose clamps, worm drive clamps, duct tape, or cable ties.  It may NOT be taped to the roll cage.  Must be fully charged.  The gauge must be easily visible for the Technical Official to read.  Recommended on-board fire extinguisher system.  It is mandatory that all entrants have in their pits, at all times, a fully charged 10 lb. Class B fire extinguisher, showing current inspection certificate and a visible operating pressure gauge.





(A)       An ON/OFF ignition switch will be installed within reach of the driver when belted in the car.  The on/off switch will be clearly marked.  A MASTER on/off switch must be located on the roll bar directly behind the driver and accessible from the outside and must kill power to the entire car.

(B)       Car must have securely fastened working muffler with exhaust exiting behind the driver.  Maximum sound level is 95 decibels at 100 Feet.  Will be strictly enforced. 

(C)       Ballast weight must be securely attached to mainframe or major cross member structure with a minimum of two (2) 1/2” bolts.  It is strongly recommended that majority of the ballast weight be contained inside the frame rails.  Must be painted white and display car number.  Must be in block form of no less than five (5) lbs.  No ballast/weight shifting devices allowed.  No "outrigger type" ballast weight brackets.  No dumbbell or weight lifting weights allowed. 

(D)      Battery may be relocated to inside of the car, but not in the trunk area. Battery must be isolated from fuel lines, must be enclosed in a protective container, and must be securely fastened to the floorboard.  One battery permitted per car.

(E)       No electric fuel pumps allowed.

(F)       No onboard computer, or record keeping devices permitted.

(G)      No traction control devices of any kind allowed.

(H) Street Stock/Sportsman cars must be registered by South Sound Speedway and will be assigned a number.  Call SHELLY CHASE AT 360-264-1692 for number.  Last years numbers will be reserved until the January registration meeting, at which time the numbers will be given out on a first come, first serve basis.  Numbers are to be displayed on the car as follows: A minimum 24" high by 3" wide number is required on both door areas.  A Minimum 30" high by 3" wide number is required on the roof of the car readable from the right side of the car.  All cars must have a 5” number on the top right hand corner of the windshield and/or right head light cover.  All numbers must be legible with paint schemes approved by South Sound Speedway.  Sponsors names and lettering must not interfere with the car numbers.  No Metallic or reflective numbers are allowed.  They must be able to be seen at night across the track.  South Sound Speedway retains the right to approve commercial or editorial messages on competing cars.  Suggestive or rude remarks are not permitted on cars.

(I)        Rainout Policy:  NO CASH REFUNDS WILL BE GIVEN.  If ANY car takes the track for practice, there will be only a half rain check given.  Full rain check only if cars have not taken the track.



1.         No roller cams except crate engines.

2.         Street Stocks may have 56% left side weight 4" ride height

3.         No weight penalty for lockers ect

4.         See front clip sportsman

5.         2 way radio's ok