GM Big Block Heat Exchanger. Early model Crusader BIG BLOCK (454 cu.in.) GM (Chevy) engines, rear mount over the transmission, used on engines up to 1985. Unit has (2) fittings on top of expansion tank. Replaces Sendure # 9365-1-5. Bottom tank is 5" Diameter x 19-5/8" Long.
Made by Lenco in Long Island, NY call us with any questions at (631) 842-4049.