Will a standard late 70's Delco radio fit the dash of a 72"

[dman535]

I know Corvette had its own special radio size. My wife's truck has a POS Sparkomatic cassette radio and I wanted to transplant a later model Delco am.fm radio. Want to maintain an GM OEM look but want newer radio with FM capability. Will it fit? Anything special I need to know?

I attached a picture of what I am thinking of using.