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Old 01-12-2023, 03:41 PM   #13
RichardJ
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Join Date: Apr 2010
Location: So Cal
Posts: 1,489
Re: 3 speed behind a 292

A 292 bored .060 is 301 cubes, which is what I have. You have to go .090" to get 305.23 cubes. I've seen one that was .080" over that ran for years, but eventually it cracked a cylinder bore.
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'67 GMC 2500, 292, 4spd, AC
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