I have a 85 Cutlass that had a 455 Olds in it. I used a Electric fan from Volvo. These fans were recalled for a relay that catches on fire. All you have to do is remove the relay, and just use the +@- wires and it works awsome. It pulls ALOT of CFM. Never overheated. And I was unsing the original 307 brass Radiator which had over 160kmiles on it. To operate the fan I used a BE COOL fan kit, cost around $70. you can choose at what temp when the fan comes on and off. I had a 190 on and a 170 off Sensor. The sensor just goes onto any port in the intake manifold, and has 1 wire that runs to the relay, so no toggle switches. It really does work great, and very easy to install. The Volvo fan has a shroud with it that fits a G body radiator Great!! Just trim a couple of small tabs on the shroud with a hacksaw, and the width and height fits perfect. You can get the fans cheap off of ebay, around $25, and the Be Cool kit cost around $70. So for around $100, you can have a complete electric fan that fits great and cools awsome.
