STREET STOCKS (350, 351, 360)
DEFINITION
"STOCK"
For the purposes of this rule book and governing events at the speedway, the word "stock" means: - Available on stock passenger car models, from the car manufacturer, installed per the manufacturers specifications, with no modifications, visual or technical, stock appearing, stock performing unless as otherwise noted in this rule book. All items not mentioned are to be Stock.
INTENT
It is the Centre’s intent to provide a class of cars which are an entry level into the "rear wheel drive" classes. These cars will be fast and challenging to drive but less expensive to build, operate and maintain than higher level classes. Theses cars will provide close, exciting competition for the fans and the competitors with the emphasis on the driver, his crew and their setup and driving skills. Where possible emphasis will be placed on protecting the competitors investments in their cars so that they can be easily and inexpensively upgraded to a higher level class at less expense.
APPROVED MODELS
Any rear wheel drive V8 North American car up to and including 2002 Model year.
For 2008 approved Street Stock models will also include any full sized Caprice or Crown Vic Chassis (Up to 2002) shortened to 108" and built per all the AOW (Atlantic Open Wheel) specifications and with a stock steel 108 body and bumpers installed. These cars may use either a 305, 350 / 351, or 360 engine per the class rules, below, for that engine size.
SAFETY
A clean drivers fire suit or fire proofed cotton overalls A minimum 4-point stock car safety harness fastened to frame / roll cage and less than 9 years old DOT approved helmet Must have 3 inches clearance between top of drivers helmet and bottom of overhead roll cage bar All doors bolted or welded shut All glass, except windshield, removed A window net in the drivers window A fire extinguisher (Min. 2 1/2 lb...). It must be securely fastened within easy reach of the driver and must have a recharge date no later than January 1st of the current year.
BODY
Stock Trunk lids and hoods must be securely fastened in place with 2 hood pins All the interior upholstery must be removed All holes must be covered with tin (22 gauge recommended) Flat contoured steel up to 1/4" thick may run from wheel to wheel (any height) to protect body exterior All body components must be in place at the beginning of the event Front inner fenders, trunk and rear inner fenders (to the fire wall) may be removed Rusted frames may be repaired with 2" x 3" square tubing Sub frame cars may join frame with 2" x 3" square tubing
Doors must be welded or securely bolted shut A Stock rear view mirror in the Centre of the car, only Windshield may be replaced with Lexan on cars older than 1990 Cars which have done so must add 25 lbs to your minimum weight
The top 8" of the Windshield must be kept open for the class sponsor. In addition the space behind the front right wheel and in fron to of the door numbers must be left open for contingency award sponsors.
ROLL CAGE AND ALL OTHER PIPING
All pipes must be 1 1/2" (outside diameter) .095 thickness material.
AThe roll cage must be electrically welded or have gussets at all joints.
Roll cages must have the space between the bars in the drivers filled in with a minimum of 1/8" thick steel plate
Acceptable cages - See Appendix A
Roll cage "A" must have a 1/4" exterior steel plate running from behind the front wheel to in front of the rear wheel. Plate must be a minimum of 24" in height and contoured to the cars exterior. All cages must be per these diagrams. No more of less tubing or support.
SUSPENSION
Stock.
DRIVE SHAFT
Stock.
A Safety hoop must be installed 6" from the front U-Joint.
REAR END AND TRANSMISSION
Stock.
Maximum Rear End Gear as follows:
Chev = 342
Ford and Dodge = 355
Rear ends must be unlocked. No posi-traction or other similer differential allowed. Single wheel drive only.
FUEL & FUEL SYSTEM
Stock.
A marine fuel tank or fuel cell recommended
Fuel tank or cell must be completely enclosed in a steel box, in the center of the trunk of the car unless marine or plastic.
Tanks must be installed and secured above the frame as close to the fire wall as possible.
Must have full firewall (22 gauge tin) between the gas tank and the driver at the rear seat.
Regular Pump gas only. Max. 87 Octane.
TIRES & WHEELS
Stock All cars must run used CFS stamped 890 Hoosiers as provided exclusively by the speedway No other tires are allowed To ensure the lowest cost and ongoing fairness, all tires must be purchased through the speedway The price for tires in 2008 will be $25 per tire No team will be allowed to purchase more than 10 tires for the year No tire my register less than 70 on the CFS durometer Rims may be no wider than 6 1/2 inches, beadset to beadset Right front rim may have a 1/2 inch spacer / reinforcement welded to the inside of the rim for clearance
EXHAUST
Stock A 2" (outside diameter) exhaust pipe may be used from each manifold Both pipes must be joined into one 2 inch (outside diameter) collector for a minimum of 12 inches prior to exiting the car Exhaust should exit within 1 foot of the passenger side rear wheel
BRAKES
Stock
RADIATOR and COOLING SYSTEM
Stock
AIR CLEANER and HOUSING
All cars must use either a stock single horn air filer housing and filter or replacement 10" diameter filter number THI*SA66802 housing with a maximum 3" high paper filter
ENGINE
Stock Maximum .30 overbore No 441 or 487 head castings Open chambers only
Minimum combustion chamber permitted: 350 Chev 76 cc 360 Mopar 67 cc 351 Ford 60 or 69 cc (Depending on the piston) Stock OEM equivalent passenger vehicle cam
The GM Crate engine for the class is available at a cost for 2008 TBA. Please call the speedway for the name of the exclusive supplier. All crate engines must be purchased from this supplier and sealed prior to being received by the racers.
CARB
Unmodified Holley 500 cfm #4412 2 BBL or stock 2 BBL carb.
WEIGHTS
All cars must weigh no less than 3650 lbs. with the driver in position at the end of the race.
Acceptable MAXIMUM weight percentages for all models are as follows:
Make Max Left Side % Max Rear %
| Chev |
53 |
45 |
| Ford |
53 |
45 |
| Dodge |
53 |
45 |
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