1050 Lbs. 16 H.P. Stock Altered
Contest open to riding lawn and garden tractors. Standard lawn mower typed engines and carburetors only. Tractor must be stock in appearance. 37 c.i. maximum displacement for single cylinder flatheads. 44 c.i. maximum displacement for twin flatheads. 30 c.i. maximum displacement for OHV. Maximum carburetor venturi size 1.200 inch. Governors are optional. Porting and Polishing is allowed. Heads and block may be milled. Camshafts may be re-ground. Only standard lawn mower parts may be used. No after market intake or heads. Any typer tractor may be used in this class. Any tire tread pattern may be used. Transaxles may be locked. Maximum over-bore is 0.045.
