ID'ing engine and transmissioin

[Randall352]

Gentlemen:  I need assistance finding out what engine and transmission I have on a shelf in my garage...for way too long!  The numbers on the engine are as follows:  Cylinder head-1120803-5.  Right side of block: P15.  Left side: 860129-15.  And on the bell housing of the transmission: 864588-2.  Any assistance would be greatly appreciated!  <Randall>   

[Plymouthy Adams]

the block has a boss that gets stamped with model and engine serial number .  It is on the drivers side, just below the dividing line block and head...forward and above the generator...there is it is a P15 you will see that stamped along with usually a six digit serial number.  

[Randall352]

The sequence stamped into the raised,  machined surface is:   PII *2I5624*....sorry, I left that out.

[Plymouthy Adams]

that is 1941 Plymouth and the engine is 201.3 cubes

[Randall352]

Thank you sir!