You have a certified 1925 vehicle. On the picture of the engine on the drivers side, look just in front of the oil filler pipe and to the left is a pad. Clean this tag for more information. Neither picture of the engine gave the casting date. Look on the passenger side of the engine for something that looks like this: 1 A 25. Now remove the valve covers and look for something on the head that looks like the code above. Post that information on the site. Now, remove the exhaust manifold, clean the face on the head were it was mounted. You should find a serial number that matches the serial number on the pad to the left of the oil filler pipe on the block. If they match the engine left the factory as a unit. If they do not match, one or both have been replaced during the vehicles short life.
Looks like you have enough of the vehicle to make a correct restoration of a Chevrolet light truck. It is a vehicle worth restoring.
If you decide to restore the vehicle, return here for any questions or help with your problems.
PS: Based on the G&G vacuum tank, the location of the spark and throttle levers, and the dual valve covers you have a very early vehicle.
2PS: Based on the number on the data tag it deciphers as Assembled in Tarrytown, NY, K = a 1925 vehicle and was the sequence number you posted.
