CAM wrote:Hey guys, I am trying to to figure out if the engine in my truck is original or not. The engine is now 12 volt, and the starter works off from a key. The carb does not look like pics of original either. can these parts be easily swapped out ? Where are the numbers on the block ? Are the the same as the vin if original ? Thanks for any help you can give me.
The engine serial number is stamped on a machined face on the left front corner of the cylinder block, just under the cylinder head, and behind the generator (or alternator, as your truck has been converted). The engine s/n will probably start with the letter "T", then three numbers, then a dash, then five more numbers. If it's a military spec engine for the G-741 series (M37, M42, etc.), then it will begin with "T245-xxxxxx".
The vehicle serial number will be stamped into the outside vertical face of the left frame rail, just forward of the front axle. This one might be hard to see if it's been painted over multiple times, or damaged by rust. The frame serial number and the engine serial number will not be the same. If you click on the link at the top of this page marked "Production dates", you'll see a list of the various production groups and the frame serial numbers. The frame s/n should also be on the metal ID plate affixed to the glove box door in the cab.
If you order the build card for your frame s/n from Chrysler Historical Services, you can determine if the engine block in your truck is original. These trucks were rebuilt by the military, and then often led hard lives in civilian use, so the engines were switched around, and non-military engines were frequently substituted. Chrysler built this same basic Plymouth/Dodge/Chrysler Industrial/Chrysler Marine short block flathead six from 1933 through the 1970s, so there were a lot of candidates.
The 12v conversion is not uncommon, and could be done without changing out the engine, although some accessories, such as starter, distributor, generator, regulator, etc. were usually changed or bastardized.
The carb is not original, and the military intake air horn and air cleaner are missing.
“When a long train of abuses and usurpations, pursuing invariably the same Object evinces a design to reduce them under absolute Despotism, IT IS THEIR RIGHT, IT IS THEIR DUTY, TO THROW OFF SUCH GOVERNMENT...” -Declaration of Independence, 1776