If you are planning to upgrade your Chevelle's cooling performance, look no further than this Ground Up exclusive kit! All the essentials are included, such as a 2 core aluminum radiator, chrome fan, fan shroud, and thermal kit. Aluminum radiators are a great lightweight alternative to traditional brass and copper radiators, with 33% increased cooling efficiency over a factory style 3 row radiator with 1/2 inch tubes, via dual 1-1/8 inch high flow aluminum tubes suitable for mild to high performance applications. This radiator can be used for either automatic or manual transmissions with the included stoppers. Inlet is 1-1/2 inch, while outlet is 1-1/2 inch.