Ah, late 70s is what I’m finding is when they converted to metric. Guessing that happened right after Ford announced the Metric Conversion Act at the end of 75’
https://en.m.wikipedia.org/wiki/Metric_Conversion_Act
Favorite part about that:
“The Metric Board was abolished in 1982 by President Ronald Reagan”
America used cubic inches for most of the 20th century. The chevy big block engine line was pretty popular, check out the different sizes it was made in: https://en.m.wikipedia.org/wiki/Chevrolet_big-block_engine
Ah, late 70s is what I’m finding is when they converted to metric. Guessing that happened right after Ford announced the Metric Conversion Act at the end of 75’ https://en.m.wikipedia.org/wiki/Metric_Conversion_Act
Favorite part about that: “The Metric Board was abolished in 1982 by President Ronald Reagan”
That’s my least favorite part. I hate that the US still uses and teaches its archaic and just plain stupid customary units.
Yeah I was being sarcastic about that lol