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STREET STOCK RULES |
1. Only American-made sedans with a minimum of 108" wheel base
plus or minus 1". NO front wheel drive vehicles allowed.
No Camaros, Firebirds, Mustangs or Capris. NO convertibles or
compact-size bodies. Racing seats and belts mandatory. Must have
a complete roll cage around driver. Must have thee horizontal
safety bars on left side.
2. Street Stock bodies must remain stock appearing.
Stock steel roofs and window panels only. Any window panel not
stock will have to be stock appearing and stock dimensions. All
upholstery must be removed. All glass must be removed and a
safety screen installed in the space of the windshield. Full
window screen mandatory (See General Safety Rules.) All safety
bars must be approved and padded. Car must have complete
firewall and floor pan. Inside drivers may be boxed similar to
that of a Limited Late Model. See Tech Inspector for specifics
before you do it. If it does not meet his specs you will be
required to remove it. There must be three bars in front of
driver at windshield, see Tech. Must have full window screen - 1
x 2 minimum. NO stock bumpers--must be pipe bumper with rounded
ends turning back towards frame rails. NO ROUGH END OR JAGGED
BUMPERS.
NO SPOILERS ALLOWED.
BODY WIDTH: Maximum 72” across top of rear deck
Maximum 76” across center of car.
Maximum 82” across bottom of car.
Hood Scoop: Maximum 4” tall by 18” long.
3. Street Stock suspension is as follows:
Racing springs and shocks are permitted. No coils over shocks.
Coil springs do not have to be the same size diameter side to
side or front to rear. Leaf springs can be different size from
side to side and have different number of leafs side to side. NO
lengthening or shortening of A-frames or spindles. Spring
buckets may be adjustable. Shock mounts must remain in relative
stock location. Bottom shock mounts on rear end only may be
moved 2 inches. Trailing arms must be same length. Top two the
same length and bottom two the same length. Top does not have to
be the same length as bottom. NO adjustable trailing arm. NO
aluminum shocks. No adjustable shocks (fixed only). Wedge bolts
are optional.
4. Steering quickeners O.K.
5. Unibody frames may be tied together. Check with Tech
Inspector.
6. Pipe bumpers mandatory--no O.E. bumpers. Ends must be rounded
off. NO sharp edges. Must not extend past body of car.
7. No aluminum driveshafts.
8. GM cars must run GM engine. Ford cars must run Ford engines.
9. Batteries may be placed inside of car. All batteries must be
safely covered and secured. Only one 12-volt battery per car. NO
18-volt batteries.
10. Stock fuel tank must be removed. Mandatory fuel cell must be
mounted securely in trunk area. Gasoline only. No electric fuel
pumps. Minimum four straps around tank. Fuel tanks 22-gallon
max. Fuel petroleum base. (Gas) regular pump-type gas, cam 2 or
equivalent. NO trick additives. NO alcohol.
11. No Street Stock driver may compete in the Street Stock
Division and any other division at East Bay Raceway on the same
night. If a driver drives in any other division for four races
or more he may not return to the Street Stock Division for the
remainder of that year.
12. Street stocks must weigh a minimum of 3100 pounds.
13. Rear pan hard bar is optional.
14. Non-ported stock O.E.M. cast iron block & heads only.
No gasket matching allowed. All engine parts must have casting
or part numbers on them for identification. Engines must remain
stock as manufactured with the following expectations.
15. Block only the following engines and over bores listed below
will be accepted.
CHEVY 350 CI UP TO .060 PLUS
FORD 351 CI UP TO .060 PLUS
CHRYSLER 361 CI UP TO .010 PLUS
CHRYSLER 340 CI UP TO .060 PLUS
All engines must maintain stock bore and stroke combination.
Example:
CHEVY 350 CI 4" BORE X 3.48 STROKE
CHRYSLER 360 CI 4" BORE X 3.578 STROKE
CHRYSLER 340 CI 4.040" BORE X 3.314 STROKE
FORD 351 CI 4" BORE X 3.50 STROKE
16. You may deck the block - pistons must not protrude above
deck.
NO TOLERANCE.
17. SCREENS -
oil restrictions - lifter tray legal no other machine work
allowed on block.
18. PISTONS
a) 3 Ring flat top pistons only.
b) Cast - Hypereutectic - OK - 2 or 4 Eye Brow.
NO single eyebrow or single trough pistons. TRW Power Forged
#2256 is OK or stock replacement.
c) NO light weight racing pistons, NO floating wrist pins, NO
gapless rings.
19. HEADS
Cast iron O.E.M. stock production only!!
a) Valve size must match stock production, for casting being
used.
b) Max valve size 194 intake 150 exhaust.
c) 1 piece solid valve only.
d) Valve stern diameter Chevy 11/32, Ford 11/32, Chrysler 3/8,
Ford-.005.
e) Milling of head combustion side only.
f) Valve springs stock diameter.
g) Heads may be machined to accept large valve springs; valve
spring size no larger than 1.300.
h) Screw-in studs and guide plates - poly lock nuts, pinning of
studs -
All O.K.
i) 1.5 stock rocker arms only; long slotted O.K.
20. CRANKSHAFTS
a. Stock for engine being used. NO grinding, polishing, shot
peen, knife edging drilling. STOCK MEANS STOCK!!!
21. RODS
a. Stock for engine being used.
b. Heavy Duty - APR – bolts and nuts allowed
c. No floating wrist pins
22. CAMSHAFT
a. Hydraulic solid lift flat tappet cam allowed
b. NO rollers – NO mushroom lifters.
c. Lifter tray is legal in side of valley.
No gear or belt drives allowed.
d. Offset keyway - 3-way crank gear. Cam offset key - Cam button
allowed.
23. LUBRICATION SYSTEM
a. No dry sump systems
b. STOCK OR OEM REPLACEMENT Oil pan -steel baffles in pan or
block O.K. NO RACING OIL PANS.
c. Inspection hole in left side of pan for rod - crank
inspection.
IF NO HOLES YOU WILL PULL PAN
24. INTAKE MANIFOLD
a. Quadra-Jet intake manifold cast or aluminum only. Must be
stock production with part number and firing order number on
manifold.
b. No bowtie.
No truck.
No marine manifold.
NOTE:
Check your part number. If it is not listed for a stock
production automobile no high performance, it is not going to
pass tech.
25. CARBURETOR
a. Holley 4412 mandatory
b. No performance carburetors
c. No air filter hats
d. No air boxes
e. No duct work to air cleaner
f. Round-type air cleaners only
g. Choke and outside linkage may be removed
h. Maximum 1.65" height adapter plate (including gaskets).
26. IGNITION
a. Stock OEM distributors only
b. No trigger ignition system
c. Coil must remain in distributor
d. Point style Ignition - Dual points O.K. but only one set
working
e. Stock-type coil only--must fit stock cap
f. Only one coil will be allowed on car
27. COOLING SYSTEM
a. Water pump, cast iron only
b. Radiator fan; steel only (no flex or plastic)
c. No electric fans or pumps
d. Aluminum pulleys are allowed on crank or water pump. NO
racing harmonic balancers.
e. Steel water pump pulley only
f. Radiator - mounted in stock location
g. Radiator - steel or aluminum
h. lower pully can be aluminum
28. FUEL - GASOLINE ONLY
a. Fuel subject to testing at anytime
b. Any infraction of fuel rule will result in a complete
disqualification
29. EXHAUST HEADERS OR CAST IRON MANIFOLDS
a. 3" maximum outlet
b. Must be under car
c. No cherry bombs or cut-out mufflers
d. Schoenfeld #112535 mufflers are mandatory with 98 decimals at
trackside
Schoenfeld #112530 mufflers are also allowed.
See general rules for penalty in cases of loss or no muffler at
tech shed
30. TRANSMISSIONS
a. Must remain stock as intended for street use
b. All gears in working order
c. Three, 4 - speed cast or aluminum O.K.
d. Auto transmission must have torque convertor in working order
31. CLUTCHES
a. Conventional clutches minimum of 10" disc
b. NO hydra clutches or release bearings or master/slave
cylinders release bearings
c. L-88 fly wheel - legal
d. Mini-starter - legal
32. REAR ENDS; NO ALUMINUM PARTS
a. 6M 10 - 12 Bolt O.K. - 9" Ford O.K.
b. 5-lug axles only - Harden axles O.K.
c. Mini-Spools (hardened)
d. No full spools. No Detroit lockers. No limited slip or
positractions
33. TIRES
Track approved tires as supplies by EAST BAY RACEWAY PARK RACING
TIRES-Hoosier 26.5 OR 27.5/8.0-15 A, D OR H40 ONLY.
There will be a 4 event burn off period for old tires. They must
be used tires, no new tires will be allowed. Beginning with the
5th event, tire rule is mandatory for all cars.
No tire softeners. No soaking of tires. No preheating of tires.
No chemicals of any type inside tire except oxygen or nitrogen.
If found, minimum $500 fine, loss of all points, accrued to date
and possible suspension. This could turn into an EPC problem if
it continues. No grinding or removal of factory markings. No
snow chains.
RULE BOOK DISCLAIMER
The rules and /or regulations set forth herein are designed to
provide for the
orderly conduct of racing events and to establish minimum
acceptable
requirements for such 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. No expressed or implied warranty of
safety
shall result from the publication of or compliance with these
rules and/or
regulations. They are intended as a guide for the conduct of the
sport and in
no way a guarantee against injury or death to a participant,
spectator, or
official.
The race director shall be empowered to permit reasonable and
appropriate
deviation from any of the specifications herein or impose any
further
restrictions that in his opinion do not alter the minimum
acceptable
requirements. No expressed or implied warranty of safety shall
results
from such alterations of specifications. Any interpretation or
deviation of
these rules is left to the discretion of the officials. Their
discretion is final.
On occasion when situations arise that are not covered by
written rules,
special rulings may be put into effect by the track officials.
Once such
rulings are acted upon, they may become an act of policy and
will be added to
the existing rules of procedures.
The Management of East Bay Raceway Park
THE MANDATORY MUFFLERS FOR ALL
CLASSES IS SCHOENFIELD #112535
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