I was 13 in 1963 and I was at Daytona when the famous “Mystery Engine” big block debuted and from that day I wanted one! It was something to see in person! That car was wicked FAST! I was already a gear head & working on my ‘55 Chevy (you could drive at 14 years old in Florida with a learners permit).
When the Z-16 came out in the ‘65 Chevelle I studied the engine and learned all I could. Two years later I bought my ‘67 Chevelle SS with the optional 375 HP 396. The salesman didn’t even know what it was at the time....spring of ‘67. The only thing I got wrong is I called it a Z-16 not realizing the RPO L78 was the correct designation. One of the first things I did was remove the 375 HP sticker on the air cleaner and put my home made Z-16 sticker on there! Very few of my buddies knew what that even meant, so it was my “stealth engine”....fastest car in town....no brag just fact! LOL! I was easy on it though, most of the time.
4.10 posi & M20 Muncie....put a Hurst shifter on it. It was really crazy fast! Then, I installed a set of Mickey Thompson Super Scavenger Headers, but that’s another story (hint...I started to question the 375 HP as being way too low!).
Good times, then Vietnam and the draft ended it all for me and I sold it for $1,700! Dumbest thing I ever did!