Stock Classes:
1000lb, 10hp or less
1000lb, 12hp or less(14-16hp run at 3200RPM)

Mod Stock/ Stock Altered:
850lb A Mod Stock, 8hp or less No Billet Head
850lb B Mod Stock, 8hp or less No Billet Head
1050lb A Stock Altered, 12hp or less
1050lb B Stock Altered, 16hp or less (16 HP will have a 12 inch hitch height Subject to Change)

Super Stock:

1050lb A 50.5 Cubic Inches

1050lb B 50.5 Cubic Inches

Pro Stock:

1050lb A 50.5 Cubic Inches
1050lb B 50.5 Cubic Inches

Limited Outlaw:
1500lb     See Class Rules
1600lb     See Class Rules