I am planning on changing my S4 alternator with an S6 alternator. Was wondering if anyone has done this swap and also wanted to know what the outcomes are. Thanks for your time and any repplies.

 

Works like a champ. There's a guy, I think his name is user name Silverrotor or something that sells them. It works great, bolts on and all but you have to swap the connector on the stock wiring harness, and get a custom pulley. I noticed the pulley that came with mine had a ford part number, so I ordered a few through a local shop, found one I liked and had it milled to fit at a machine shop. I think Silverrotor sells his with pulleys, and HIGGI also sells a pulley for the swap. Been covered a lot, search a little.

 

yup, works great. used a s4 double pulley and just milled the hole out a little bigger.

 

Yea silverrotor sells the kits. Best part is the FD alternator is new and not reconditioned. He sells it with the harness and I 'believe' the dual pulley, don't quote me on that, he'll reply and tell us the deal im sure.