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I've got a 1982 that had a radiator leak. I've been thinking about recoring my original until I found out I can still get an AC Delco. However, I don't know how well they fit. Anyone out there replaced their radiator with a AC Delco part # 21003? I want to know if it is an exact fit for the old one. I don't want to make any modifications to the car to make it fit.
Go to their site pulls all the specs. http://www.acdelco.com/index.html
Then click on Parts Catalog
then
Display Part Image by ACDelco Number
and plug in the part number in the search box and it gives all the specs