2008 Sportsman Division Rules and Specifications

* RULE AMENDMENT EFFECTIVE JUNE 14, 2008 *

CHECK OUT WEIGHT SECTION FOR AMMENDMENT

ENGINE:
A.     362 cubic inch maximum, including over bore.
B.    Any steel crankshaft.
C.    Stock stroke.
D.    Any steel connecting rods.
E.     Stock type pistons, 2 or 4 eyebrow, may be forged.
F.     Dry sumps allowed.

ENGINE SETBACK:
A.     Full tubular frames – six(6) inches with ½” tolerance.

HEADS:
A.     Steel heads. Must be based on OEM design (Chevy, World, Dart, and Pro are OK).
B.    23 degree heads are OK. NO 14 degree heads allowed!
C.    Intake and exhaust bolt pattern must match original OEM head.
D.    Valve angle and valve spacing must meet OEM specs for the head being used.
E.     Steel valves only. Undercut stems permitted. NO titanium valves.
F.     Valve stem diameter 11/32 inch minimum for all engines.
G.    Maximum valve size:  Intake – 2.055 ;  Exhaust – 1.625.
H.    NO porting or polishing.
I.        Three(3) angle racing valve job permitted. Machine cuts only.
J.      Any valve springs, retainers, roller rocker arms, and stud girdles allowed.

WEIGHT:
**Steel angle plug heads  -  2350 pounds
**Cars with 604 GM Crate Motor  -  2300 pounds - EFFECTIVE JUNE 14TH
***It is the driver’s responsibility to have declared weight displayed on left side of roof. ANY car with weight not displayed is subject to disqualification.

CAMSHAFT:
A. Flat tappet only. NO roller cams.

DISTRIBUTOR:
A. Stock type or magneto allowed.

CARBURETOR:
A.     750 CFM maximum.
B.    Any intake manifold.
C.    Gasoline only.

CLUTCH/TRANSMISSION:
A.     Transmissions MUST have working forward and reverse gears.
B.    Any triple disk clutch is allowed.
C.    Transmission must be in OEM housing.
D.    Aftermarket Bert or Brinn transmissions are allowed.
E.     Aluminum flywheels are allowed.

REAR ENDS:
A.     Any type rear end gear is allowed.

SHOCKS:
A.     Racing type and coil-overs are allowed.

FUEL CELL:
A.     Mandatory!

WHEELBASE:
A.     Minimum of 103 inches, measured from center of hub to center of hub.

BRAKES:
A.     Must have 4 wheel brakes.
B.    Racing disk brakes are allowed.

TIRES:
A.     Hoosier 55 Spec OR Hoosier 21 Spec ONLY.

WHEELS:
A.     14 inch maximum width.
B.    Aluminum wheels allowed.
C.    Beadlock are OK.
D.    NO carbon fiber wheels.

HEADERS:
A.     NO turned down tubes.
B.    Exhaust must run parallel with the ground.

BODY:
A.     Same as Super Late Models – (www.southern-allstars.com)

SPOILER:
A.     Eight (8) inch material.
B.    604 GM Crate Engine cars may run 12 inch spoiler.