clutch fan gap too short

Ugh.

Okay - I have a Hayden 2764 fan clutch, which as far as I know, is the shortest available. I also had my stock radiator converted to three cores. Add in the aluminum water pump. Little by little losing all of the space between the fan clutch and the radiator fins.

As it sits all put together I only have 1/8" of space between the fan clutch fins and the radiator fins. Not nearly enough. Are there any clever tricks to get at least another 1/4" of space in there? 1/2" would be better of course.