steamgas Posted December 1, 2014 Share Posted December 1, 2014 what are the engineering dimensions of 243 buick engine with a 3.09375 dia bore.first i need the piston dia. plus the tolerances.next i need the cylinder bore dia.plus the tolerance. Link to comment Share on other sites More sharing options...
Mark Shaw Posted December 2, 2014 Share Posted December 2, 2014 What year and model Buick? Link to comment Share on other sites More sharing options...
steamgas Posted December 2, 2014 Author Share Posted December 2, 2014 it's a 1940 special series 50 Link to comment Share on other sites More sharing options...
Leif Holmberg Posted December 2, 2014 Share Posted December 2, 2014 In my Buick books Special ser.40s ,and Super ser.50s ?Leif in Sweden. Link to comment Share on other sites More sharing options...
steamgas Posted December 2, 2014 Author Share Posted December 2, 2014 the motor number suggests 50 series Link to comment Share on other sites More sharing options...
jenz38 Posted December 2, 2014 Share Posted December 2, 2014 Doesnt matter, both series are have,248 cui. engines. Link to comment Share on other sites More sharing options...
egor Posted December 5, 2014 Share Posted December 5, 2014 Sounds like you need to spring for a shop manual. Reprints are available on eBay and from several parts suppliers. Link to comment Share on other sites More sharing options...
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