Called Hart Beat City the people reproducing the GM 3 core
and 4 core rads with the tags. I asked them what rad came with the L78/68 camaro with 488 gears at first one of the workers told me it would be a 3core rad, then later I called back to order the rad
and the boss came on the phone and told me with no hesitation that the 4 core rad was installed when 488 gears were orderd in 1968.???????
586-226-8811

I will look inside the head liner to see if there is any info sheet.I am in the process of re- contacting the origional owner to ask him.
Peter