How can I identify which engine is in my truck?

[b923]

I am inheriting my Great Grandfather's 1955 Dodge C1-C8-116 this summer and I am just getting all my info together so when it comes to work and parts I have the best info that I can have.  I know the truck has a V8 but I cannot find how to identify which engine it is exactly.  I am guessing it is a 241ci Poly instead of the Hemi, just based on pictures that I could find.  Can any of you identify it by this picture and that the tag says 125HP at 4000RPM and 145HP at 4400RPM(ignore the dirtiness)? I can get other info if needed, but pretty sure this is what would be needed.  Thanks for the help!

 

 

 

 

 

[Ivan_B]

Look for the serial number, around the block, that should give you the necessary info.

This looks like a Polyspherical Head V8.

Edited April 23, 2024 by Ivan_B

[Plymouthy Adams]

Look for the engine number stamped on the block. You should find it next to the oil fill tube at the top of the engine, behind the water pump.  Still at that I understand there are three engine possibilites

[Veemoney]

Poly engine 1955 or newer since it has the water jacket in the front of each head. Locate the engine number stamped on the block as PA said it should be on the block rail in front of the oil fill tube. I attached a link to help once you have the numbers.

EarlyHemi and related Poly Engine ID codes – Quality Engineered Components