Topic: 67 radiator C7ZE-8005-J2 or -S2?

[67gta289]

Can anyone help me figure out when the radiator changeover from C7ZE-8005-J2 to C7ZE-8005-S2 occured for the 289 AT no AC application at the SJAP?

I've got a Dec 20, 1966 build date.

I'll be submitting a WTB post later, but if you have one shoot me a PM please.

Thanks, John