Service bulletin for the new for 1964 "273 V-8 engine"

toolmanmike said
Good question. I hadn't heard of that name attached to 64'. No 4 barrel until 65 but when was the information printed? Late 64 info could be for the 65 4 barrel release.

Shows January 15, 1964 toward the top right. May be one of those “who knows” things.