i jus dropped a small block into a org 6 cyl 1970 duster.... i used all original V8 k-member and so forth.... i am running a new 26 inch 3 row radiator from a 1 ton truck (overkill) with shroud, 160 mr. gasket thermostat, 8 blade water pump, and a 5 blade clutch fan... now i found this lo-pro...