I believe it will fit. Seems to me I have one around somewhere in the garage?

The biggest issue, if I remember correctly, is that the later Z's have the turn signals in the grill area, and the early 240 Z's had the signals in the lower front valance panels? (I'm not up on my auto body terminology?)

I have a 77 2+2, that I am thinking of putting the early 240 Z stuff on, making it look older.

If you go ahead and decide to use the 240 grill with the late model turn signals, you would end up trimming the 240 grill I believe. Maybe you want to make a custom grill instead of cutting up the 240 grill?

Speed

Enjoy the Ride!