I have a supercharged LT1 with the factory damper/hub. I'd like to upgrade to an ATI damper and keyed hub assembly for use with my supercharger.

Is this a custom order piece and where should I buy one? I'm a bit confused as to what I need and how it all fits together.

Thanks.

 

you can get on directly from ATI or even jegs sells them. About $400. If you have a Procharger you will have to machine the spacer or shim the blower bracket out to get the pulleys to align

 

For some reason I thought this was a custom piece. Any way, you mean that the piece needs a spacer to bring it out further to line up with the supercharger or that it needs to be machined slightly shorter.

Thanks.

Or that I just have to measure and check to see which may be needed.

 

If you can wait for Thunder Racing to do one of their sales, you can pick them up for about $370 shipped.