When i did my AMC 360 swap, i just used a 3core HD from advance auto, running the engine fan it stayed aroung 185* now with the one listed(#350R) for the Mopar360, running a 16" elect. it runs about 190*, now i run a 16" puller offset to driver side, and a 14" pusher offset to pass side with trany cooler next to it. Running straight water it never gets above 180* all day long.