6.5 fan and clutch diffrences

[WarWagon]

Here we have a 21" Duramax fan, 4 bolt 9 blade 19" steel, and a "scrap metal" 6 blade 6 bolt fan and clutch.

 

[Burning oil]

I see you have a hammer and a trash can nearby, for the set up on the right?

 

[Will L.]

Those three next to each other is like a race: Usain Bolt, Justin Gatlin, and Chad the 75 year old guy with the limp from down the street.

While you have them out of the truck, can you measure the blade length from hub to tip on the 2 not going in the trash can for me please?

 

[WarWagon]

The yellow tub is scrap metal for the Boy Scout troop. The scrap fan clutch and old water pump are going over to a machine shop with a 1993 454 water pump to retrofit it to use a diesel fan and clutch. (Project cold AC on the 454.)

Note the two clutches left and center are Old style KD low temp clutch and the center is a brand new 2015 KD low temp clutch. Looks like a supplier change for KD.

 

[Will L.]

The one on the right is a 6 bolt. The company that makes that fin pattern is Torqflo. The other two look like Hayden is making them for him. We do know he is having them made to his spec- not an off the shelf clutch.

 

[Will L.]

Zombie thread revival:
Anyone know the dmax fan blade part number off hand? I’ve a nephew in need of one right now.