2010 - 2012
Late Model Rules
(Modified Mar 16, 2010)

These motor rules are in effect for the 2010 winternationals and for the entire 2010 season

Built Motor Option: 2300 Lbs

Max Cubic Inches 362
Max Bore 4.060"
Max Stroke 3.500"
No Titanium Connecting Rods
Flat Top Pistons Only
Stock or Steel Cranks Allowed
Wet Sump Oiling Only (NO DRY SUMP  ENGINES)
Flat Tappet Camshafts ONLY (NO ROLLER CAMSHAFTS)
Max Diameter Lifter for GM Engines .842", (Ford .875"), (Chrysler .904") NO ROLLERS
Steel Lifters with Steel Face ONLY (NO Composite Lifters) NO ROLLER LIFTERS
Any UNPORTED 23 Degree Steel Head Allowed
Angle Milling Allowed
Shaft Rocker Arms Allowed or Screw-In Studs and Guide Plates (1.5 or 1.6 Ratio Rockers ONLY)
Roller Rockers Allowed (1.5 or 1.6 Ratio Rockers ONLY)
Any Valve Spring Allowed
Stainless Steel Valves Allowed
NO TITANIUM VALVES ALLOWED!!
Any One Piece Aluminim Intake Allowed (NO 2 Piece or Sheet Metal Intakes)
Timing Chains Only (NO BELT DRIVES)
Any Single 2 or 4 Barrel Carburetor

12 inch spoiler for All Cars

Tires

Hoosier 21 or 55 Spec only. NO Economy.  No American Racer, No goodyear, No Mcreary. Factory durometer # strictly enforced. groving/siphon ok

No tire soaking/and or treating in any class. Any driver/owner/crew member found to have used, or brought, any tire soaking chemicals onto SRW property will be asked to leave the property and will be subject to fine and or suspension.

Weight

2400lbs - Open Motor /Any Dry Sump
2300lbs - Built Motor Option
2200 lbs. GM /FASTRAK/ NeSmith sealed crate motor