Area
track rules apply to “A” Modified with the exception of Tire Ru=
le
below.
No
Motor Claim
No
Car Claim
Modified Weight on CCS Scales Car & Driver after race 2350 lbs.=
8
inch rear spoiler maximum
8 inch steel wheel - Bead Locks. OK
I.M.C.A.
Hoosier tires-Any 8in. tire - OK
Southwest
Speed 8” tires
G60
Dirt American Racer Tire
Hoosier F53-F75-970-880 Asphalt 8” Stamped Tires only. Grooving – O.K.<= o:p>
Grand
National Tire Rule – Open Any Tire.
1. Engine: 360 Maximum cu=
bic
inches with GM block and stock stroke 3.48 cranks. Flat top Pistons. Ford 3=
61
(351 block and stroke). Ford and Mopar must use=
OEM
parts only.
Cast iron OEM bl=
ocks
only! NO aluminum blocks. No Dry sump motors.
&nb=
sp;
Lift Rule: .480” @ valve with .030 lash. Roller rockers allowe=
d.
OK to run shaft rockers.
No roller camshafts or
lifters. No bleed-down lifters.
2. Cast iron heads only.<=
span
style=3D'mso-spacerun:yes'> Vortec=
heads
ok. 2.02” intake and 1.60” exhaust valves
maximum. Angle milling ok.
Aftermarket heads allowed. Double hump heads ok.
23 d=
egree
heads only. Angle plugs allowed. Porting or polishing of heads or intake. O=
K.
Match
porting of intake to heads. No aluminum heads. Cast iron heads only allowed=
3. Alcohol or racing fuel=
ok.
Maximum carburetor 750 CFM.
4. No mismatching of engi=
ne
parts. GM to GM and Ford to Ford, etc.
5. No Aluminum parts exce=
pt
intake manifold, pulleys, valve covers, radiators and water pump.
6. No belt drives fuel pu=
mps.
Mechanical in stock location as factory installed
7. Weight 2450 lbs. with
car and driver following the race on CCS Scales. No Tolerance!
8. Tires: 8” steel =
wheel
– I.M.C.A. Modified Tires OK. KK-704 or KK 704 Short American Racers.=
I.M.C.A. Hoosier=
Tires
OK. Southwest Speed 8” Tires – G60 Dirt American Racer Tire,
Hoosier
F53-F75-970-880 Asphalt 8” Stamped Tires only. Gr=
ooving
ok.
9. Steel Wheel only. 10&#=
8221;
maximum. Bead locks. OK
10. =
&nb=
sp;
Transmission. Reverse must work.. BER=
T,
BRINN OR FALCON allowed.
11. =
&nb=
sp;
No direct drive. Car must have working starter and must be able to
start on its battery power. Must have blow proof bell housing on standard
transmissions.
12. =
&nb=
sp;
Mini clutches ok.
13. =
&nb=
sp;
MSD ignition allowed.
14. =
&nb=
sp;
Driver’s floor must be made of 16-guage steel – NO alum=
inum
in the floors allowed.
15. =
&nb=
sp;
Please refer to General Rules for additional information. Safety
information and Fuel Cell information.
16. =
&nb=
sp;
Claim: NO CLAIM – NO MOTOR CLAIM – NO CAR CLAIM R=
11;
No Ignition Claim
17. =
&nb=
sp;
Final notes: Drivers, if it does NOT say it, that doesn’t mea=
n you
can do it. Call CCS TECH before you do anything to your cars that might be
questionable.
For More Information: =
www.crawfordcountyspeedway.=
net
or 479-632-2749 – Cell 479-632-7201
Track phone: 479-474-1=
942 or
Like us on Crawford County Speedway Face Book Page or group.
For More Information: www.crawfordcountyspeedway.=
net
or 479-632-2749 – Cell 479-632-7201
Track
phone: 479-474-1942 or Like us on Crawford County Speedway Face Book Page or
group.