FWIW.
I have several vehicles successfully running around with 7 blade viscous fans, NO shroud.
Can you get a measurement from the fan mount flange to the rad. It's gonna be close, but a OEM 69 clutch fan is 2 5/8 inches from flange to end of clutch, 3 1/2" for a moho 7 blade clutch that I commonly use..
View attachment 1714943336
View attachment 1714943338
hope it helps . cheers
View attachment 1714943340
and Yep, the fan clearance is only about a 1/4 inch from the clutch to the rad, the motor is secured from moving forward in case of abrupt stops.
After 4 yrs of spirited driving by my son,, no interference yet.. lol
I'm touching wood here.. lol
