At one time did GM have a flat head straight 6 & 8 in the oldsmobile and the pontiac?

H

Hand puppet pet

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I know there was a 36 old's in the back yard, and it was a flat head, but an earlier model(34) had 4 cylinders. Chevy and buick had overhead valves even in a 4 cylinder 28 chevy
 
Olds didn't get an OHV engine until the Rocket 88, circa 1949; Pontiac soldiered on with its old flathead engines until 1955. And yes, both straight sixes and eights were available.

Buick - David Dunbar Buick, his own self - actually invented overhead valves.
 
Olds didn't get an OHV engine until the Rocket 88, circa 1949; Pontiac soldiered on with its old flathead engines until 1955. And yes, both straight sixes and eights were available.

Buick - David Dunbar Buick, his own self - actually invented overhead valves.
 
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