What engine do I have in my 48 Plymouth?

[Cold Blue]

My engine number is P15A866680.  I have searched my computer until I am blue in the face, (no pun intended) but cannot find a number listing for flat sixes. I thought I had a 218, but maybe it's a 230??? Is it a 1948 engine? Thanks in advance!  I am hoping it is the original engine.

[DJ194950]

See if this attempt to add a link from a post of mine a day or two ago.  Has a list of mopar flat motor #'s and year,size.

 

 

 

DJ

phlA6yf7.html

[Los_Control]

here ya go

http://www.t137.com/registry/help/otherengines/otherengines.php

[Cold Blue]

Thanks guys! I went to the site and saw that indeed I do have a 1948 Plymouth engine, as the block number is a P15; I am tickled. But the listing threw me for a loop in that it listed the block number for a 1948 Plymouth as being a "15C". My block number simply says "P15" then a "star" (I thought it was an "A" until I looked real close). So no "C" after the "15". And the list did not identify if the engine was a 218 or a 230...it was blank. So one question was answered - I have a 48 motor. But I still don't know the cc size...

[Los_Control]

you may need to measure the stroke, the link that DJ shared talks about measuring the stroke and would help you.

 

[Cold Blue]

I found out I have a 218! I went to Wikipedia and searched for 1948 Plymouths and found that all 48 Plymouths had a 218 (217.9, to be exact ) installed. 

[Plymouthy Adams]

that "A" on closer inspection should really be a                   *

[9 foot box]

   You won't know for sure until you pull the plug at #6 and measure stroke.  4.500" or 4.625"

[greg g]

Unless 23 internals were swapped into the engine it's a 218.  Plymouth's didn't get 230 engines till mid 54.