I have about 1/8. “. When I get home tonight I will take pics and measure from rad support, radiator and fan to give you a good idea. I have an off brand radiator I got from Dillon Radiators online $142 been in there 7 years I run the car in traffic during the summer. (In Texas). I have a truck 5.7 the clutch fan would not clear. The fan motor is offset so it may sit the side of the pump as mine does
