2008 Rule Changes Highlighted In Yellow

Make sure you read all safety and procedural rules, THEY DO APPLY TO YOU!

2008 Hurricane Street Stock rules

This class is open to 1965 or newer American made full frame cars. No high performance cars, trucks, station wagons, convertibles or front wheel drive cars. Wheelbase must remain within 1" of stock for the make/year of car used. Outside body must be complete, and resemble the factory original. Cars may use aftermarket steel replacement panels (no aluminum), but each panel must retain its OEM dimensions and style. Straight flat homemade panels, square-looking or bodies resembling a late model will not be allowed.
 Sealed hood scoops allowed 3-Inch maximum height but no cowl induction, air boxes or any system of forced air Induction allowed. No part of air cleaner can be exposed above hood. All glass must removed. Inside door panels, inner fenders, trunk floor, and OEM dash panel may be removed. All doors must be welded shut. Roof panels must have factory dimensions, centered over roll cage. No half roofs or roof spoilers. Bodies must be fully mounted in a safe manner with no external or internal sharp edges.

SEATS / INTERIOR: Aluminum Seat Is mandatory, minimum .095" material. No fiberglass, bucket seats, or factory original car seats. Seat must be mounted no further back than 32" from center of rear housing, measured from rear- end to bottom of seat back. Driver must be protected by a sealed front and rear firewall. Stock firewalls may be replaced with 20 gauge steel or .080" aluminum. BUT must be remain full length and in original position. Rear window shelf must be completely sealed across entire window base to rear firewall. Passenger's side of cockpit must not come straight across to driver's shoulder area. It must drop down before midpoint of cockpit. No sharp edges. Steering column must be aftermarket, but must remain in original location. Aftermarket gas pedals recommended must have toe lift loop. No cable operated throttles allowed. All pedals must be in stock location in driver's compartment.

ROLLCAGE: Complete six point roll cage with at least main cage a mandatory of 1.5 x 1/8" wall tubing minimum, no black iron pipe. All junctions must be gusseted. Minimum of one 1" vertical bar down center of windshield area with entire windshield area covered with 1/2" square steel screen. All cages will be centered on chassis, no LM offsets or severely setback cages. Right side of main cage must be welded down to original frame rail even if an inboard straight rail has been added inside the OEM frame. Cars with main hoop mounted to inboard frame rail section must either add 150 pounds to the middle of the OEM right side frame rail or add auxiliary uprights and X frame door bars up to the height of the door and tie them into the main uprights. All cages must have a minimum of 3 door bars on each side with 4 recommended on driver’s side. When only 3 are used on driver’s side, there must be sufficient verticals tying them together with gussets. Lowest bar cannot be lower than driver's hip area in seat and top bar must come sufficiently high enough to protect driver's shoulder area. OEM door pillars and rocker panels can be removed but must be replaced with vertical bars tying door bars to main cage, and rockers must be replaced with crush panels that seal off driver's compartment. Nerf bars are optional between front and rear tires, but must be tight to door panel, with no sharp edges, and have ends turned inward.  Nerf bars must be securely fastened in at least 2 places to cage and not just to body panels. Nerf bars are allowed behind rear tires tying into bumper ends, and must be fastened to frame inside rear fender. Same procedure applies for front corner nerf bars. All nerf bar material must be a maximum of 1.5" OD tubing or square stock. Rusted rear frame sections may be replaced by tubular or square steel anywhere behind rear most suspension mounting point to rear bumper area. No collapsible OEM bumper shocks. All bumpers and bumper support bars must be securely bolted and or welded to frame.  All uni-bodied cars must have sub-frame sections welded in place with both front and rear clips remaining in stock locations and configuration. Bumpers must be securely mounted to frame, with ends enclosed or protected, with a minimum of a loop bar in the center or heavy chain loop for wrecker use. No cowcatcher type bumpers, or severely over- built bumpers will be allowed.  A minimum of 1.5" diameter bumper support bar, not to exceed 4" diameter tubing behind stock type bumpers or nose pieces is allowed. All interior roll bars that are within reach of driver will be padded with roll bar padding (pipe insulation is not allowed). Window net is mandatory. No old string type nets allowed. Driver must be able to open window net while fastened in car.

SUSPENSION: All suspension components must be stock and used in stock locations for make of car. Aftermarket racing springs allowed but no coil over or coil springs sliders /eliminators, torque arms, or other aftermarket racing suspension components. Coil spring adjuster cups or solid spring cups allowed front and rear but no jacking bolt systems. No method of suspension adjustment can be done from inside or outside the car. Car must have to be jacked up for any adjustments to be made, No drop spindles or aftermarket hubs, tie rods control arms, etc.OEM only. Non stock or aftermarket ball joints allowed. A- frames must be OEM stock or upper A-frame may be replaced with a steel shaft tubular A-frame in OEM location. * All A-frames must be same size and shape, and both sides must match.   No heim- joints may be used on control arms, tie rods or sway bars. Spindle saver bolt on braces are allowed on metric spindles. No Ford or Mopar suspension parts on GM vehicles. No rear sway bars, unless factory installed.

DRIVETRAIN: Stock type rear ends only. May be from different size car BUT must be from same brand.  No floater type axles in Ford rear ends. Welded or locked rears allowed (mini-spools allowed), racing axles allowed, but no ratchet type differentials, Gold-Trac, or any other aftermarket traction control devices allowed. Rear control arms must be stock and mount in OEM locations, NO slotted holes in either rearend or on frame. Drive shafts will be painted white and have a minimum of two steel safety hoops near front and rear. No chains, bungee cords or tin strapping. No aluminum drive shafts or half shafts allowed. 1" steel lug nuts mandatory on all four corners with at least 1/2" studs, 5/8 recommended. All bolt on lead or added weights must be brightly painted and have car number on it. All cars must weigh a minimum of 3000 lbs after racing with driver, no allowances made for water or fuel.

WHEELS AND TIRES: 8' steel wheels any offset. Aftermarket steel rims highly recommended. No bead locks or bead locking allowed, no wide 5, aluminum or magnesium wheels. DOT stamped racing recap tire or American Racer 245/70 non DOT racing tire. Tread width can not be more than 8 1/4". No tire softeners or treatments allowed. No mud or snow tires. Grooving or siping is allowed. Minimum of 5 lug nuts per wheel at all times.

BRAKES: Must have operable and effective 4 wheel brakes. Dual master cylinders allowed. Front to rear brake bias adjuster allowed, No remote dial adjusters allowed inside driver's compartment, this means you are not allowed to adjust the bias when racing. Right front brake shut off valve allowed, but all right front brake components must be in place. Rear stock disc brakes allowed, but must be OEM type systems, No aluminum rotors or aftermarket or dual piston calipers. Steel brake lines only. No nylon line systems.

SHOCKS: Steel bodied shocks only, must be Non-adjustable, one per corner, mounted in stock location for type of car, but can have fabricated rear upper mounts particularly on cars with rear frame sections replaced. Steel bodied after market shocks with welded heim-joint ends are allowed on the rear only but they must be mounted in stock location, must be non-adjustable, Front Shocks must be stock type and in stock location.

TRANSMISSION: Stock automatic or manual transmission only, with all gears working, including reverse. Automatic transmissions must have functional 11" torque convertor with no internal modifications allowed. No hollow converters allowed or any method of creating direct drive systems. Manual transmission must have full steel bell housing and blanket, stock clutch, pressure plate, flywheel. Minimum weight on flywheel is 25LBS. No aluminum parts whatsoever in clutch systems. No aftermarket transmissions allowed. No corvette parts allowed.
 
ENGINE: Engines must remain in stock location with no notching of crossmember for fuel pump clearance.  Aftermarket solid motor mounts allowed. Chevy Vortex and Ford GT heads not allowed. Cast iron OEM stock production heads only. Any angle valve job will be permitted as long as it is done on a machine that concentric to the valve guide center. Any amount of valve seats per cylinder head will be allowed to be installed for the purpose of repairing a head. No hand grinding, sanding, blending, or de-burring where a cutter or stone leaves off. Sand blasting, bead blasting, add dipping, porting, polishing, and welding are prohibited. Stock ratio rocker arms only for that motor. Stock type steel 1.5 roller tip rockers allowed. No full roller or shaft roller rockers allowed. No BBC rockers or valve train parts on SBC heads, No titanium or aluminum valve train parts allowed. Maximum valve size: intake: 2.02”, exhaust: 1.60". Poly locks allowed, stud girdles, and screw in studs and guide plates allowed but must be OEM size and location. No BBC studs in SBC heads. No relieving or un-shrouding of valves in combustion chamber. May run double valve springs, Heads must be manufactured by manufacturer of engine block. No aftermarket or bowtie blocks or heads. All factory casting numbers must remain visible. No SVO Ford parts. No aluminum heads or Intakes, even If they were OEM parts. Maximum displacement: GM: 350ci+.060", 4"bore x 3.480" stroke Ford: 351ci+.060", 4" bore x 3.5' stroke Chrysler: 360ci+ .060", 4" bore x 3.578" stroke Chrysler: 340ci+.060", 4.040" bore x 3.13" stroke Blocks may be decked, but piston must not extend above deck at all. Wet sump oil pans only, no windage screens or modified oiling systems. Stock OEM or oval track claimer style oil pans allowed. 1/2" pipe plug must be installed in oil pan for inspection purposes. Oil filters must not be remotely mounted, Block mounts only, No gear drives or belt drive cam systems, Timing chains only. Flat tappet cams only, No mushroom lifters or lifters larger than OEM for motor.

PISTONS: Flat top pistons only. No domed pistons of any kind. Aftermarket pistons allowed as long as they are stock OEM type. Minimum 1/16"xl/16"x3/16" rings only. No Metric rings or gas porting of pistons allowed. Must have at least 2 valve pockets, but piston cannot be fly cut. Floating pistons allowed, but no piston guided rod/pin configurations.

RODS: Aftermarket I beam sportsman replacement rods allowed but rods can be no longer or lighter than stock OEM for the motor being used. No Olds. rods In Chevrolet engines. Aftermarket rod bolts allowed. No polishing, lightening, drilling, etc. No aluminum rods. Balancing or bushed rods allowed. No type of H beam rods allowed.

CRANKSHAFT: Crankshafts of stock dimensions, weight, and style, with a 50Lb. minimum. Balancing of rotating assembly allowed. Stock stroke only for make/size of engine. No altering of stock stroke crankshafts allowed.

HEADERS:  Cast iron exhaust manifolds, no center dump exhaust, headers are allowed 1 5/8 tube only. crossovers are allowed, But no180º headers are allowed,  No exhaust can run thru driver's compartment. All headers must exit underneath car with exhaust pipes exiting past driver and end before rear tires with no crankcase evacuation type systems. No two into one exhaust or H pipe connections in exhaust systems.

INTAKE: Stock cast iron production 2 bbl. OEM intakes only. No marine, bowtie, TBI or other industrial intake manifolds. No propane intakes allowed. No porting, polishing, or any internal work, No shot blasting, acid etching, or other cover up work allowed. No plenum area work at all other than to mill carburetor mounting surface to remove rust. A 1" tall fiber or aluminum carburetor adapter may be used to adapt to Holly 2bbi carb. No tapered spacers, open spacers, or any adapter modified to allow additional air below carb. butterflies. Adapter hole walls must be straight and parallel to each other with a maximum diameter of 1.750" maximum combined height of adapter and gaskets will be 1 1/8" measured from carburetor plenum surface to carburetor base plate,

IGNITION: OEM style electronic ignition systems only. No aftermarket ignition systems such as MSD, magneto,etc. No traction control, or timing altering devices allowed. No digital tach. No crank  rigger ignitions or multi coil systems.

COOLING SYSTEM: No aluminum or electric water pumps. Pump mounted fans only, no electric fans. No flex fans or aluminum fans. Any pulleys allowed. Any radiator but must remain in stock location. No duct systems designed to direct air to intake/carb.

FUEL SYSTEMS: Gasoline only. A maximum of 22 gal. fuel cell with rollover valve recommended. All fuel lines running thru driver's compartment must be steel braided with no pipe fittings and routed in a safe manner away from exhaust header.. Fuel shut off must be well marked and within driver's reach. Mechanical block mounted OEM fuel pumps only.

CARBURETOR: Limited to one stock 4412 Holley 2bbl carburetor.   Carburetors must have choke horn, but all choke hardware can be removed. Maximum throttle bore: 1 11/16” (1.687”) maximum venturi diameter:  1 3/8”All carburetors must pass all no-go gauge checks with body, base plate, boosters, throttle shafts, etc all being unmodified and in stock location.  No polishing of any part of carburetor. No modifications to pick up air from any source other than through top of carburetor, such as cut gaskets, drilling, etc. Only the following changes may be made to carburetors:  jets, power valves, air bleeds, emulsion bleeds, float, needle/seat, pump/cam, idle bypass holes in butterflies, plugging/blocking of vacuum ports, welding linkage to shaft, installing shaft bushings to correct for worn shaft, and boosters may be tightened for safety.