I'm lost. In the red book I see a m40 turbohydramatic with 13,272 being sold. I believe this is a th400. as from what I've always read no BB chevs ever came with a th350 and also the th350 came out until 69 anyway. Did you know even in 68 you could get a powerglide with the big block? Wasn't the m10 a three speed overdrive manual transmission?
                                                                  Larry (z)

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