BSS Super Late Model Series Quick Rules
                                                   FOR COMPLETE RULES GO TO BSS RULES.



Weight

All specified weight requirements would be with gas, oil, water and driver prior to racing.

1. Maximum allowable left side weight will be 58 percent of the total car weight.
2. Minimum weight 2750# for  ABC bodies. Bodies must fit Referee.
3. Perimeter frame chassis 50 lb. weight break.
4. Car utilizing crate engines must weigh minimum of 2700# and 59% left side weight.
5. Added weight must be in block form of no less than five-pound blocks (no pellets).  Added weight must be securely bolted in place.  Dislodged weight cannot be returned to car for weighing after race.  All added weight must be painted white with car number in red or black.  Any lost weight will result in a $10 per pound fine to the Driver.

Tire Rule
A maximum of six(6) tires may be used for the 125-lap Early BIRd.
All Tires will be impounded. Official Tire of 2008 Early BIRd is the Hoosier #2045.

BSS Super Late Model Engine Rules

1.                 9:1 Compression Engine 362 Max Cubic InchesCannot exceed 9.5:1 compression. Method of determining compression will be at the discretion of BSS Officials.

2.                 Minimum valve angle: GM-18 degrees; Ford 9 degrees with 4 degrees valve center; and Mopar 12 degrees. (+/- 2 degrees)

3.                 Steel or aluminum cylinder heads.

4.                 Steel standard production crankshaft; balancing, lightening, stroking allowed.

5.             Any camshaft, any steel lifter, any rockers arms. Gear drives allowed.

6.       Steel or aluminum intake. No fabricated intakes.

  390 CFM 4bbl Part #6895 or #80507. Carburetors must pass inspection at any time regardless of temperature. Booster bar may be removed from center of booster (max inside dia. of booster .473) and the booster may be tapered from the center seam down (booster must retain .700 length minimum) but all 4 boosters must be the same style. No other modifications are allowed on carburetors.

8.        2” MAXIMUM SPACER ALLOWED BUT CANNOT EXTEND INTO MANIFOLD.

Steel Head Engine 362 Max Cubic Inches

1.     Any flat-topped piston may have valve reliefs. Piston cannot extend out of block.

2.     Cast or steel production crankshaft. Balancing allowed. Stroke must be within .020 of stock stroke for engine used.

3.     Any flat tappet hydraulic or roller camshaft allowed.

4.     Cast Iron Bowtie, Sportsman II or Iron Eagle 200 heads only.

5.     Maximum valve size: GM intake 2.055/exhaust 1.625; Ford intake 2.085/exhaust 1.656; Mopar intake 2.020/exhaust 1.625

6.     Multi-angle valve job allowed, no blending between cutter and casting. No work in runners, bowls or chambers. 75 degree maximum cut. GM heads may be port matched to Mr. Gasket #102 intake gasket. Maximum depth of port matching is 1" from machined surface; grinding only, no polishing. Titanium valves and retainers allowed. Maximum intake runner volume – 208 cc.

7.     Unaltered 750 CFM 4bbl Part #4779 or #80528 Carburetors must pass inspection at any time regardless of temperature.

8.     2” MAXIMUM SPACER ALLOWED BUT CANNOT EXTEND INTO MANIFOLD.

  Sealed Engines & Crate Engines

1.                 McGunegil “Sealed Engine” with 7200 rpm chip and 750 Carburetor.

2.                 Hamner Sealed Engine with 7600 rpm chip and 750 Carburetor.

3.                 General Motors crate engine part number 88958604 Ford crate engines M6007D347 Dodge crate engines P5007958.  All sealing bolts must remain as installed from factory. Removal of sealing bolts will result in disqualification. (Crate engine cars will have a special weight combinationin in the SLM Series) 

ALL SEALED ENGINES AND CONPONENTS MUST REMAIN AS SUPPIED BY BUILDER!