James_Douglas Posted May 3, 2015 Report Share Posted May 3, 2015 Hi Guys, I am from over on the p15 side. I need a spare block and head for a project on Desoto. I local guy has an engine for sale that appears to be out of a 1959 Dodge truck. The block is stamped on the ID pad with M25 and then a star. I think this is a 251 flathead. Can anyone tell me what is different on these engines from the production 251 used in Chrysler and Desoto in the late '40's and early '50's? Thanks, James. Quote Link to comment Share on other sites More sharing options...
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