Found this info on eBay and thought i'd pass it along to you Engine guys. This guy says he can custom make any size pulley you want - supercharger, alternator, etc. - so you can fine tune your boost or electrical output (or so he says) or just dress up your engine. I Do Not know this guy. just passing along the info.



http://www.ebay.com/itm/Gra...em460ff3f42f&vxp=mtr

http://www.ebay.com/itm/Ove...em45e13f2d1f&vxp=mtr

I been thinking about buying a complete set from http://www.smoothflowpulleys.com
edit: after reading add that is smoothflow.
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87GTseries 1 3800sc (7.597 @88.53 1.579 60ft)
(series II swap in progress)
85GT Northstar/ 4t80e
86GT 3800 n/a---sold
Northstar Rebuild

[This message has been edited by jb1 (edited 04-25-2014).]

that's more good info . I'm looking out for a 3.5 cheap for a little "boost" without getting too involved

their pulleys look sweet with replaceable bearings on idler pulleys, there was someone here on forum at one time with them, I will end up buying a set I have wanted them for years, glad you posted the info

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87GTseries 1 3800sc (7.597 @88.53 1.579 60ft)
(series II swap in progress)
85GT Northstar/ 4t80e
86GT 3800 n/a---sold
Northstar Rebuild

You probably saw my swap, I have not seen anyone else using Nate's pulleys, they are some really nice pieces. Heres a couple of pictures from my build thread.