best rad to use??

[REGGY5GT]

which rad would be better to use on the conversion? i think there are 4 pipes coming off the engine to go to the standard volvo rad, what rad could i use off any car that would fit the renault mounts or with as little modification as possible or could i use the standard r5 rad?? thanks

[SCHWARTZ]

least mods r5 rad theres a few threads on hear about it tho.