Were they copper or aluminium? I would go look myself but mine is far far away right now and I won't be able to look until its to late. Thanks

 

I believe it should be Aluminium

 

any online reference where I can check for sure?

 

Look at it! What are the side tanks made of?

Plastic? That is almost always a sign of an aluminium rad.
Gray fins, slightly shiny? See above.

Its not uncommon for previous owners to change stuff, sometimes not good; so you will have to look.

 

I would look at it but like I said in my previous post, I am very far away from my car and I am not able to look at it for awhile. And my side fins were black (whole thing was black).

 

If all the fins are black, typically thats the look of a brass/copper rad.
someone may have painted it? Are the sidetanks plastic? Those would be black but plastic is usually easy to spot.

 

naw, i am almost positive the sides are metal. And all the fins are black so I probably have a copper one. Thanks for the info people!

 

yes it will be plastic tanks with an alum core