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Piston Expander Sets for Most Cars 1930-1950


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7 hours ago, trimacar said:

I never have understood what a piston expander does or how it works...anyone used them?

In Los Angeles, I remember TV and radio ads for Lou's Garage. He would overhaul your engine mostly with a hone job, bearings, valve grind, and a set of piston expanders. Oh yes, of course you got new gaskets and oil. It probably cost you a whole $59.95! After honing the piston, the skirts needed expanding to mitigate piston slap. Does anyone else remember those ads?

Edited by JFranklin (see edit history)
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