Here was the tag info off the radiator that originally made me think it was an SS. But the manufacturing date does not line up with the build date of the Camaro.
Tag= I0 UY
00
70 R
10= big block, 4 core end tank, with curved neck
UY= Broadcast code= COPO (big block 4 core 23 inch wide core, .16 spacing on fins) part # 3018624* Used in 1969 on manual transmission 396 air cars and 427 COPO cars only- 4 core, 23 inches wide, with .16 fin spacing.
00= big block manual end tank, four core only used on big block manual trans cars.
Between these two letters is the letter F which means it was made the month of June.
70 and R are unknown characters and meaning is unknown.
Obvious to me know, I can see this radiator came out of another car, for its racing ventures in the 70's....
Racer Dan