Question of the Day: Best forgotten straight-six engine?
Think beyond the M20 and Slant-6.
My vote goes to the Pontiac OHC six, which was a very advanced 230- or 250-cubic-inch engine developed during the reign of John DeLorean and installed for just a few years in the late-1960s Tempest, LeMans, and Firebird. It wasn't any cheaper than a V8, so American buyers weren't much interested at the time, but the OHC and its hot-rodded Sprint sibling could have done great things in a lightweight sporty car. What's your choice?
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