I have a slightly used, about 800 miles, Walker 4-core copper radiator that I installed in my Outlaw Performance 40' Willys coupe back in 2000. Walker part number is Z-AC560-1. I ran it from Midland MI to Indy and back home. When I got back home I switched it out for a Be Cool aluminum radiator. This part number now sells for around $1,100.00 new from Walker. Was asking $450 plus shipping. NOW THE PRICE IS $250 PLUS SHIPPING! It's never been AC hooked up, condenser still factory plugged. I had a 16" single fan upon first startup and it "seemed" to cool okay. But when I was in line at Indy Goodguys event in '00, it overheated. After getting into the show I purchased a Spal dual 11" fan setup and converted it over in the hotel parking lot that night. The twin Spal fans did the trick, but they ran a LOT. The radiator has brackets setup now for a Spal twin 11" fan assembly. The outside to outside of the lower frame mounts is 25.25". The core radiator is 24" wide, 18" tall and 3" thick. There is NO filler opening. The upper hose needs to run to a remote filler housing. Since the radiator was lower than my heads on the hemi, there were no other options than to have a remote filler housing. I also used that as a remote thermostat housing. Oh, I didn't mention this, but I was running a blown '57 392 hemi, not your typical SBC. This Walker radiator was installed between the front frame rails and I still have the aluminum mounting brackets that I made up for the install. It's in like new condition and ready for a new owner. See below for my install. Thanks for looking.