It would really depend on the radiator. Plastic rads are better for hondas since they are prone to overheating. Especially the ESIs. Personal experience ko, i had to replace cyl head gasket thrice in 1 year. Head gasket ng esi is made of aluminum lang (ph16). Madali ma bengkong. I would sugget plastic rad since if there is excessive pressure sa coolig system due to overheating, sisingaw sa radiator and hindi sa engine. Its cheaper to replace a plastic rad kesa top overhaul.