Stock "Under Drive Pully" Weight?

[V8JamesGT]

I just got my set of Steeda UD Pullies today and I was just curious as to if they were lighter then the stock pullies. The steeda pullies are about 8lbs. I hope to have them installed by next wednesday. I've also been keeping a close eye on my mpg so I can tell how much of a difference they will make. I'll let you guys know the results along with before and after track testing!

 

[NastyStang113]

I only gained .5 mpg from them and about ~6-7 rwhp.

 

[V8JamesGT]

Is anyone willing to weigh their take off stock pullies?

 

[NastyStang113]

I'll do it, maybe later tonight.

 

[V8JamesGT]

I've been reading Big Cats write up and I have one other question... Where do I get the silicone to put in the keyway? I assume putting the silicone there is important and required right?