Another 302 Head Question

I'm Canadian too, but since I became a wrench before the government mandated and enforced the Metric crap system, and made me buy new tools, and I now have to measure the bolt-heads before every trip to the toolbox, I'm bi-lingual.
Lol it's too bad Canada jumped the gun on switching. Being in college for MEng, I have to be proficient in both as well..... that's gonna take some work :BangHead: