CENTRAL OHIO ANTIQUE TRACTOR PULLER ASSOCIATION

DIVISION 7 HOT ROD TRACTORS

SMALL BLOCK

2001 EXHIBITION RULES (updated 01/28/01)

CLASSES

5000 # Small Block

TIRES

18.4 x 38 maximum

AGE OF DRIVER

18 years or older

AGE OF TRACTOR

1972 and older, no home made tractors

FUEL

Gasoline fuels only, no alcohol, no nitrous oxide, no oxygen accelerate, no nitrogen methanol, and no propylene oxide. Racecar gasoline may be used.

DRAW BAR

Drawbars must not exceed 20 inches in height or less than 18 inches from center of axle to hooking point. No part of draw bar may extend rearward beyond point of hook. Drawbars must be stationary in all directions. No clevis

ENGINE, MANIFOLD, CARBURETOR, IGNITION

Engine must be 410 cubic inches or smaller. Must be a small block, no big blocks. Must be a cast iron block, cast iron heads, maximum eight cylinders. Two valve one spark plug per cylinder. Camshaft in block. Any manifold, up to one four barrel naturally aspirated carburetor, stock, out of box 750 CFM maximum with factory number, with choke tower. No flowed carburetors. No fuel injection, no throttle based injection. Any battery or mag-powered ignition may be used. Headers or open exhaust are allowed. Headers must exit in an upward direction.

HOOD, GRILL, FRAME, TRANSMISSION, REAR END, AXLE

Must be for that make and model and must maintain stock appearance and dimension. front ends may be homemade but must maintain stock appearing wheelbase.

TOTAL LENGTH OF TRACTOR

Maximum length 11’ from center of rear axle to the furthest point forward, including weights.

SAFETY EQUIPMENT

Wheelie bars, kill switches, fire extinguishers, fenders, side shields, SFI flywheels and pressure plates, scatter blanket or steel shields. Drive shaft from bell housing to transmission must be shielded. No steel fans

ALL COATPA GENERAL RULES APPLY

INFORMATION

Paul Fankhauser 419-284-3876 1-26-01

NOTE

All Hot Rod exhibition rules are subject to change with out notice.