Guest Paul Manuel Posted October 18, 2014 Share Posted October 18, 2014 Well its time to get my engine going in my 1928 GMC Express. It is a 186 or 3 1/4" bore. My cylinder bore is roughly .007" larger at the top than the bottom. I have 6 good standard pistons (3.250") but will require cylinders boring. I would like to find a set of pistons .010 over or more. Also does anyone know if I can get a set of standard 1929 pistons and bore to fit? I do not know if the piston is simply larger diameter or did they also make other changes to the pistons such as pin size or deck height etc.Thanks for the help. Paul. Link to comment Share on other sites More sharing options...
aussiecowboy Posted October 25, 2014 Share Posted October 25, 2014 You can buy the pistons new from egge.com, I rebuilt my 29 engine and had no trouble getting oversized pistons. Link to comment Share on other sites More sharing options...
Guest hounsy Posted January 3, 2015 Share Posted January 3, 2015 Old bloke advertising in just parts Australia has pistons Link to comment Share on other sites More sharing options...
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