Guest Posted February 1, 2004 Share Posted February 1, 2004 I have a 1952 Dodge Coronet which was manufactured in Canada. The manual says that I should have a 3.25 inch bore. I have measured the bore at 3.5 inches. Were the Canadian Built Dodges bored out, as I know was the case for early Pontiacs, or is this motor NOT a 230 cu. in. but perhaps a 251 cu. in. or a 265 cu. in? I have never heard of these last 2, but my complete gasket set claims to be good for all 3 motors. Thanks for any help you can offer. Larry Taylor Link to comment Share on other sites More sharing options...
plymoth Posted February 1, 2004 Share Posted February 1, 2004 Measure the length of the cyl. headto see if you have a 23" or a 25"engine block. A 23" is Ply. orDodge engine. A 25" is a DeSoto orChrysler engine......plymoth Link to comment Share on other sites More sharing options...
Guest Posted February 3, 2004 Share Posted February 3, 2004 Thanks. It seems I have a 251. The head is about 25.5 inches long. The original bore could have been 3.375 and, if bored out 0.060, would account for my 3.497 measurement. The stroke is 4.5 in. which is also unique to the 251. Link to comment Share on other sites More sharing options...
Guest brian Posted June 19, 2005 Share Posted June 19, 2005 Larry:Your Canadian Dodge Coronet has the 25" engine with a 3.375 stock bore. All Canadian Dodges and Plymouths from 1937 (I think) used the big block with 3.375" bore until the end of the L-heads. All DeSoto and Chrysler used same block with 3.4375 bore. I don't know the stroke for the Coronet offhand, but I think displacement should be about the same as the US model with 3.25 bore. Link to comment Share on other sites More sharing options...
Guest imported_Bill-W Posted June 25, 2005 Share Posted June 25, 2005 The Canadian 1952 Dodge Coronet used the larger flathead six with a 3.375" bore and 4.25" stroke, for 228 cid. There is a possiblilty the engine has been replaced, not all that uncommon as the engine was used in Chrysler Corp cars from 1935 through 1959. The engine number should be stamped on the left side of block near the fan.Chrysler of Canada opened its engine plant in 1938 and built engines using the larger block. Thus Canadian Plymouth and Dodge cars used the same block as the DeSoto and Dodge. The DeSoto/Chrysler 251 unit was used by Plymouth and Dodge from 1955 through 1959.BillVancouver, BC Link to comment Share on other sites More sharing options...
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