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>My machine shop could not find any pistons for the 400M. Do
>you guys know where I can find some???
Well - there certainly are sources for stock compression pistons in overbore sizes - those should be easy to find. If you are looking to raise compression, that is another matter. I believe Badger may sell some around 9.0:1. You can also modify 351C pistons (pin is different). Lastly, Jahn's pistons in California made some 9.5:1 pistons for me in 1978 or 1979...