Two "Flathead" V8 engines were available in Ford's half-ton pickups in 1940. A small 136 CID version makes 60 hp, and the 221 CID version seen in the photo above makes 85 hp.

1940 Ford pickup.

1931 Ford Model A pickup.

This is a closed-cab pickup body, model 82B.

1938 Chevrolet half-ton pickup.

1938 Chevrolet half-ton pickup.

This is a Master HC series half-ton pickup.

This truck was displayed with a tool kit.

Chevrolet half-ton trucks were available in seven body configurations ranging from a chassis and cowl all the way to a "Carryall" Suburban. This truck is a two-door cab with a pickup box.

Power comes from Chevrolet's 216 CID I6 that makes 85 hp.

A beautifully restored 1938 Chevrolet Master HC series half-ton pickup.

Class 22C: Commercial Vehicles, load capacity under 1 ton, 1943 - 1966.

1956 Ford F100 pickup.

1956 Ford F100 pickup.

This beautifully detailed engine is a Ford 272 CID V8 with overhead valves.

I'm not sure which transmission this truck has. But the V8 makes either 173 hp when paired with a manual transmission, or 176 hp with the automatic transmission.

1950 Ford F1 pickup.

This is the first generation of the Ford F-Series pickup. Models were named according to weight class from F1, (half-ton seen in the photos above), through F8 "Big Job" heavy duty conventional cab.

1955 Chevrolet 3100 Series pickup.

This was the introductory year for Chevrolet's new Task Force series of trucks. The Task Force series replaced the previous Advanced Design series.

Class 22E: Commercial Vehicles, load capacity 1 ton and over, 1928 - 1942.

1929 GMC T Series stake body truck.

1929 GMC T Series stake body truck.

GMC's roots can be traced back to two companies. The Rapid Motor Vehicle Company, founded by brothers Max and Morris Grabowsky in 1902, was a builder of commercial duty trucks and buses. The Reliance Motor Company, also founded in 1902, built passenger cars and trucks. Both caught the eye of GM founder William Durant who subsequently acquired Reliance in 1908 and Rapid in 1909.

The General Motors Truck Company was created in 1911 to sell Rapid and Reliance trucks. But by 1912, both names were replaced in favor of the newly created GMC brand name.

By 1929, GMC was producing its T-Series of trucks available in half-ton (T11), 1 1/2-ton (T19), 2-ton (T30), 3 1/2-ton (T60), and 4-ton (T80) configurations. I believe the truck seen in the photos above is a 1 1/2-ton T19. Power comes from a 200 CID Pontiac I6 that makes 60 hp.

Class 22G: Commercial Vehicles, load capacity under 1 ton, 1967 - 1994.

1985 Chevrolet K10 pickup.

1972 Chevrolet Cheyenne 10 pickup.

1972 Chevrolet Cheyenne 10 pickup.

This truck was beautifully restored. I would guess factory a/c would be a somewhat rare option in a truck in those days.

Class 22I: Military vehicles thru 1994.

There were two military vehicles on display. I saw both of them as they arrived.

1942 Harley Davidson.

1942 Harley Davidson.

1944 Willys Jeep.

1944 Willys Jeep.

Class 24A: Documented competition vehicles, oval, straight, or circular track thru 1994.

Class 24 is for documented racing vehicles and is broken down into four sub-classes. The first three, 24A, 24B, and 24C, all pertain to the type of racing in which the vehicle was used.

The fourth sub-class, 24D, is for documented racing vehicles that are unrestored. And like the HPOF and DPC classes, Class 24D is a certification class and the vehicles therein are not point judged.

Several Class 24A vehicles. The first car in line, (right side of the photo above), is a 1931 Plymouth stock car.

1931 Plymouth stock car.

This car started life as a 1931 Plymouth. Then in 1959, it was turned into a race car by builder Bob Boocher. Power comes from a 262 CID I6 Hudson Wasp engine. The car was driven by Artie Hall and raced throughout the midwest into the late 1960s.

1969 Ford Mustang Mach I.

Looking at the single headlamp front leads you to believe this is a 1970 model. But the car is a 1969.

This 1969 Mach I left the factory as a 428 SCJ car. At some point, the 428 was replaced with a Roush Performance 351 CID "Cleveland" V8. But since the 351 Cleveland wasn't available in a Mustang in 1969, the car's body panels were replaced with pieces from 1970 in order to qualify the car for NHRA Super Stock class.

Mike Pustelny raced the car throughout the 1970s and 1980s.

In addition to being a multiple record holder, this car was also featured in several magazines from back in the day.

The sign displayed with the car details the racing documentation.

Class 24A: Documented competition vehicles, Road, Hill Climb, or Gymkhana course thru 1994.