[sport]

I never seen a flat head Chevy. AndI have seen Chevy engines from 1937.

[ZirconEncrustedTweezers]

I’m pretty sure some of the earliest Chevy engines were indeed flatheads, but I know the Stove Bolt Six was an OHV pushrod unit.

[Cletus.D.Yokel]

Yep, thanks. Foggy recall from working with Ford and GM industrials, AKA, 3-ton dump trucks/snow-plows.

Some of those engines got co-opted and pushed into PUs; Chevy and otherwise. I guess I’m thinking of Ford flats.

Thanks, again.

[rockrr]

Production OHV 6’s date to about 1929 as I recall. My ‘37 pickup came with a 216cu Stovebolt. I later upgraded it to a ‘57 235cu (better lubrication and HP).