I pulled this from a 95 Rx7 RHD from japan land that was crushed by customs.... ouch..

Anyways, its heavier then my koyo, built identical, and has a bleeder on the top?>
Should I keep it or use the Koyo?

 

looks like a knock off koyo, but honestly I dont know for sure. The new koyo's have a bleeder valve on top because its a 3 chamber, and needs it.

 

Looks like the old school Koyo rads. Seen similar go through Yahoo Japan Auction time to time. Is it leaking in the right hand corner end tanks?

 

Ah thanks.
Im going to have it pressure tested.
Its PERFECT fin wise.

Would I be better off with my "newer" koyo?

 

It held 18 pounds for 3 hours. Looks good .
Must have been a leak from the AST

 

Here is a strange twist.
The radiator is solid COPPER. Its TIN plated giving it that silver look.
I have never heard of any race radiators like this? It looks completly custom, no names. It explains why its so bloody heavy! Whats this worth?