Cold Blue Posted November 4, 2018 Report Share Posted November 4, 2018 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. Quote Link to comment Share on other sites More sharing options...
DJ194950 Posted November 4, 2018 Report Share Posted November 4, 2018 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 Quote Link to comment Share on other sites More sharing options...
Los_Control Posted November 4, 2018 Report Share Posted November 4, 2018 here ya go http://www.t137.com/registry/help/otherengines/otherengines.php 1 Quote Link to comment Share on other sites More sharing options...
Cold Blue Posted November 4, 2018 Author Report Share Posted November 4, 2018 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... Quote Link to comment Share on other sites More sharing options...
Los_Control Posted November 4, 2018 Report Share Posted November 4, 2018 you may need to measure the stroke, the link that DJ shared talks about measuring the stroke and would help you. Quote Link to comment Share on other sites More sharing options...
Cold Blue Posted November 4, 2018 Author Report Share Posted November 4, 2018 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. Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted November 4, 2018 Report Share Posted November 4, 2018 that "A" on closer inspection should really be a * Quote Link to comment Share on other sites More sharing options...
9 foot box Posted November 5, 2018 Report Share Posted November 5, 2018 You won't know for sure until you pull the plug at #6 and measure stroke. 4.500" or 4.625" Quote Link to comment Share on other sites More sharing options...
greg g Posted November 7, 2018 Report Share Posted November 7, 2018 Unless 23 internals were swapped into the engine it's a 218. Plymouth's didn't get 230 engines till mid 54. Quote Link to comment Share on other sites More sharing options...
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