I built my Locost 18 years ago, Dennis was just getting started with his Stalkers and reached out to me about getting a kit from him. He saw I was using a Datsun 280z as my donor, as his first kits were built around GM 2.8 and 3.1 motors. I used an old Rx7 radiator and it has worked ok, but it's starting to seep ( too many mods over the years) I picked up a new radiator off FB market for a song, seller got it on a pallet for resale and had no idea what it was for. 14"x16" 3" deep. 3 row all aluminum. After doing research, I found it's for a Polaris Razor. I found a post about Stalkers using a Hyundai Excel radiator with a surface area of 208 square inches and that worked. The radiator I picked up ($25) has the same surface area but is 3 row instead of 2 row. Before I start cutting off old brackets and building new ones I want to verify that what I had read was valid.