I got an alum 2core "Champion" rad for a 65 dart off of eBay for 189 to my door. Redrilled 1 hole in the side flange. No leaks. cools well but a 318 DD does not put it to the test. for something hotter I'd spring for a 3 row at least & maybe even a 4 core

live every 24 hour block of time like it's your last day on earth