RIVERSIDE STOCK 2013 RULES
here for payout
MUFFLERS MANDATORY/RACECEIVERS MANDATORY
1.1 This is an entry
economy class to enable racers to get started in V-8, full
bodied car racing. Any American made sedan, coupe, or pickup
truck is eligible. No station wagons, 4 wheel drives, or Jeep
type vehicles. No two door sports type cars.
Minimum stock wheel base allowed 101”.
Car must have a towing hook in the front and rear of car or
chains bolted to frame. Must be easily accessible to the tow
Body & engine must be same manufacturer. GM to GM, Ford to Ford,
Chrysler to Chrysler.
Section 2: Safety
All safety items are subject to Technical Inspectors approval.
Section 3: Body
All doors must be welded or bolted shut.
All glass must be removed.
All molding, lights and light lenses must be removed.
Rear seat cushions must be removed and any resulting holes must
be covered with .22 gauge sheet metal.
Steel or aluminum bodies are allowed.
May tie front and rear unibody rails together.
Stock steel unaltered floor pans and firewalls must be retained.
Wheel openings may be cut and rolled-in for tire clearance.
Front inner wheel wells may be removed.
Steel or Aluminum bodies must remain original factory stock appearing. No
chopping, channeling, shortening or cutting allowed.
Aftermarket steel or aluminum body panels are allowed for repair of race
damage. Replacement Body Panels must resemble stock panels.
Bodies must appear stock.
Hood and deck lid bracing may be removed. Fiberglass hoods
allowed, but must remain stock appearing.
Hood and trunk must be secured with positive type fasteners. No
Rub rails are permitted between front and rear fender wells and
must not protrude from body more than 1inch and not wider than 2
inches. Must be securely fastened, minimum of 3/8" bolts.
After-market racing nose pieces will be permitted.
Body subject to Tech Inspector’s approval.
New bodies may be used on old chassis (for example, 1982 or
later Camaro body on 1981 or earlier frame) as long as length
and width are accommodating. Must be tech approved.
Must have stock bumper or tech approved reinforcement. No sharp
edges. No heavy gauge bumpers allowed.
All sheet metal must be in good condition and appearance.
Numbers must be at least 18” high on both doors and on the roof,
and in contrasting colors to the body color.
number must be placed so that it is read by viewing the car from
the passenger side, and easily visible to the scoring tower. No
Eight Inch Metal Spoiler allowed
Section 4: Frame
Completely stock and unaltered.
May tie sub frames together.
Track width maximum of 82" measured outside to outside of tires.
Offset frames not allowed.
Section 5: Roll Cage
Full 8 point roll cage required, with a minimum of three (3)
door bars on driver side and two door bars on passenger side is
May not reinforce the body or alter the geometry of the car.
Side bars on driver’s side may extend into the door opening.
Bars must be welded and gusseted.
Minimum of two bars must extend back through rear firewall, and
connect to rear frame. Rear loop allowed.
Front loop around radiator allowed, but not wider than roll
Section 6: Firewalls
Front and rear must be stock with all holes patched with sheet
metal to seal the driver’s compartment.
Section 7: Wheels/Tires
Hoosier asphalt pull offs or Hoosier 500 stock car tires. Rear Tires must durometer
minimum 50. Must hoop 15".
Maximum wheel width – 10”, steel wheels only.
offsets must allow front and rear to track the same. Offset
subject to tech inspection and approval.
Mag wheels are not allowed.
Must use 5 oversized lug nuts per wheel.
Larger wheel studs required on all four wheels.
Plating a stock wheel is legal, steel wagon wheel or steel slot
wheel is considered a reinforced wheel without any modifications
and is legal.
Bead locks allowed.
Section 8: Brakes
Brakes must be in working order at all times, and each wheel
must lock up on inspection. Right front brake optional.
Cut-off valves or adjustable proportioning valves are allowed,
but not within reach of the driver while strapped in the
Section 9: Suspension
Front and rear springs may be aftermarket parts. Rear sliders
Minimal modifications allowed to install springs, such as
cutting of spring bucket area.
Spacers maybe used, but only for frame-to-body clearance.
Front shocks must be mounted in stock location. If using a Ford
9" on a GM frame, either axle shock mount or body shock mount
must be in stock location. Rear shocks can be located in any
position. Steel shocks only. No aluminum shocks.
No coil overs or air shocks. HEIM end shock mounts may be used
if situation in 9.4, above regarding Ford 9" rear axle in a GM
frame is applicable. Non-Adjustable racing shocks allowed - one
Modifications are not allowed to stock upper or lower control
No steel control arm bushing allowed. May use urethane
All steering arms and parts must be factory or suitable
replacement. (TRW, Moog, Dana, McQuay Norris.) No racing
adjustable parts allowed. Steering quickener allowed.
Factory or after market stock length rear trailing arms are allowed.
Must be equal length bars.
Factory 4 link must use all trailing arms and bushings must be
in good repair.
No aftermarket panhard bar.
No jacking bolts, or other similar types of suspension
Section 10: Clutch / Transmission
Stock transmission and single disc stock type clutch only.
Automatic transmission must have stock torque converter (no Lock
Up converter). Ten inch converter permitted.
Safety strap of 360 degrees under front half of drive shaft
Steel flywheels only Flywheels must weigh a minimum of
Any stock 3 or 4 speed transmission with reverse, and all
Automatic transmission cooler is permitted. Must not be in
Stock steel drive shafts only.
Driveshaft must be painted white.
May use hydraulic throw-out-bearing and master cylinder.
10.10 A 360 degree blow proof bell housing is mandatory. Must
have 3 inch inspection hole in bottom to inspect clutch. Auto
transmission must have SFI approved shield or blanket.
Section 11: Rear-end
Must be stock factory parts. May use Ford 9". Rear axle must be
located in the stock position. (See 9.4, above regarding
mounting of shocks.)
Locked rears are mandatory. Spool or welded spider gears
Floating rear ends allowed, but no 3/4 ton truck rears.
Section 12: Battery
Batteries may be moved to the inside of the car but must be
securely fastened inside a box.
Batteries permitted in trunk.
Batteries must be mounted in an approved container.
Gel batteries recommended.
Section 13: Cooling Systems
One stock type aluminum or racing radiator only under hood in
front of engine in stock location.
No anti freeze allowed.
Section 14: Fuel System
Pump commercial gasoline or racing fuel only. No alcohol.
Fuel cells must be used, and will be checked for condition and
date of manufacture.
Fuel cells must be vented to the outside of the car.
Fuel cells may be mounted 3 inches lower than bottom of rear
Fuel caps must be secured to fuel cell, or safety wired.
Fuel line may not exit bottom of fuel cell.
Section 15: Engine
All casting numbers must be unaltered.
Must be in stock location. Driver's side front plug must be in
line with grease fitting on left front upper ball joint. No
set-back allowed. Minimum height of center of crankshaft from
the ground is 10 inches.
15.3.1 Production OEM only. (No bowtie, SVO, etc.).
15.3.2 Cast iron only. No aluminum.
15.3.3 A maximum overbore allowed .060
15.3.4 Maximum Cubic Inch Displacement: GM - 362 cu. in., Ford -
362 cu. in. and Chrysler - 370 cu. in.
15.3.5 Must pass pump check.
Cylinder heads: Aftermarket Vortec replacement style heads
will be permitted. This will be the only aftermarket head
15.4.1 Cast iron only.
15.4.2 No GM small block angle plug heads. GM Part #
12558060 VORTEC heads
15.4.3 No porting or polishing.
15.4.4 GM - 55 cc min., Ford - 55 cc min.
15.4.5 Valve spring diameter limited to original production
diameter for head used.
15.4.6 Three angle valve job maximum.
15.4.7 No titanium valves or exotic metals. Steel or Stainless
15.4.8 Stock valve stem diameter and length. Valve sizes limited
to OEM production diameter for head used. Aftermarket retainers
and keepers allowed, but in stock OEM configuration.
15.4.9 No under-cut valve stems.
15.4.10 Stock-type or
aftermarket steel or
aluminum roller rocker arms allowed. No shaft systems or rev
Ratio for make: GM -
1.52:1 for steel; 1.50:1 for aluminum, Ford - 1.6:1
15.4.11 Polylocks are permitted.
15.4.12 Stock diameter push rods.
15.4.13 No bowl work allowed under valve seat.
15.4.14 No porting or machining for gasket matching allowed.
Minimum clean up permitted. Subject to CC inspection.
15.4.15 Stock type valve spring configuration only.
15.4.16 Screw-in-studs & guide plates allowed.
15.5.1 Any flat top piston allowed with 2 or 4 valve reliefs.
15.5.2 No domed pistons.
15.5.3 Stock wrist pin diameter.
15.5.4 Zero deck height.
15.6.1 Stock production or any aftermarket Cast replacement
style crank will be allowed.
15.6.2 Stock stroke only.
15.6.3 Any means of lightening other than balancing is illegal.
15.6.4 No knife edging.
15.6.5 Solid steel aftermarket dampener allowed. No Fluid
15.7.1 Must be OEM I-Beam rod. Press pin or floating pin
permitted. Any aftermarket “SIR” style replacement I-Beam rod
will be allowed.
15.7.2 Stock length only.
15.7.3 No polishing.
15.7.4 Any means of lightening other than balancing is illegal.
15.7.5 After market rod bolts permitted.
Camshaft / Lifters:
15.8.1 Hydraulic or solid flat tappet allowed. No mushroom
15.8.2 No roller cams or roller lifters.
15.8.3 No gear drives.
15.8.4 Stock lifter diameter only.
15.8.5 No variable duration / bleed-down type lifters.
15.8.6 Firing order on engine must remain original.
15.8.7 Engine must show 15" vacuum at 1000 rpm. No vacuum pumps.
Intake Manifold / Carburetor:
15.9.1 Any 2 or 4 bbl cast or aluminum intake manifold allowed.
No tunnel ram intakes.
15.9.2 No TBI manifolds.
15.9.3 One Holley model 4412, 500 CFM two (2) barrel or
Rochester two (2) barrel only.
15.9.4 No polishing, grinding, porting or cutting allowed with
the exception of choke butterfly plate and choke tower removal.
Must pass inspection using "Go, No-Go” gauge.
15.9.5 May use two gaskets, maximum thickness 0.08 inch each.
15.9.6 A two-inch spacer or adapter maximum.
15.9.7 Stock OEM STYLE mechanical fuel pumps only, in stock
location. No electric fuel pumps.
15.10.1 Any stock OEM distributor allowed.
15.10.2 Single points.
15.10.3 Any stock style OEM coil allowed. Must fit in stock cap
15.10.4 Stock style HEI systems permitted. No MSD modules.
15.11.1 Economy headers OK. No 180 degree headers.
15.11.2 No modifications allowed.
15.11.3 H-pipes & 2 into 1 systems allowed.
15.11.4 Exhaust pipe diameter 3" maximum I.D.
15.11.5 Exhaust must be securely bolted. No band clamps
15.12 Engine Location / Oil Pans:
15.12.1 Stock location only. See #1 plug rule, above.
15.12.2 After-market oil pans allowed.
15.12.3 Engines may be bolted direct to the frame, or chains
over engine mounts are permitted.
Section 16: Weight
Car will be weighed in post-race condition.
Car must weigh 3000 lbs with driver and no added fuel.
The track scales are official.
Failure to meet weight will result in disqualification.
All lead must be properly secured and painted white. (Subject to
All lead must have car number painted on it. (Subject to tech
Section 17: Protest/Post-Race Inspection
$500 for the top half of engine. $700 for complete engine.
$100.00 protest on flywheel.
Track does NOT pay for labor or materials associated with
teardown for inspections.
Protest must be submitted to the race director or track official within 10 minutes of feature
completion (drop of checkered flag) for this class and before
the top 5 cars and drivers are released from the scale area. Car
protested has right to counter protest. Only top 5 and on
the lead lap may protest.
17.4 Can OR Can’t rule: Do not try to read
between the lines in the rule book. Just because the book
doesn’t say you can’t, don’t assume you can. Any modifications
not specifically outlined here are at the Tech Departments
discretion. All final decisions will be made by the tech
Officials. Ask first before you assume something is legal.
Penalty will be loss of points and winnings for the night
and suspension for two race cards for this class.
Section 18: P&G/Teardown
18.1 All participants are subject to a P&G test at anytime.
Failure to comply with this rule will result in automatic
disqualification, loss of money and points for that night. If a
driver/owner refuses to the inspection before the car is allowed
to compete again the car/engine will be inspected (inspection
may include a engine teardown).