Quote:
Originally Posted by xwire
heads are the same, intake manifold bolt up the same (74 has no EGR provisions) you really need to read on Johns site it answers most of your questions http://wrenchmonkey.com/Webpages/6G74swap.html
an intake (as in cold air) will bolt up fine
UDP, recommend using the stock 6G74 crank pulley but udp will fit
3SX DP will still have to be modified as the 3.5 is a wider engine
as far as power I have no numbers just seat of the pants power numbers, I have owned SEVERAL TT's and have two now with 3.5 turbo engines, and whitedragons automatic just amazes me the power it puts down, with my old 92 on stock engine/stock turbo's I would have to down shift into third to get away from him after the 3.5 conversion, before I would leave it in fifth and just walk him (remember it was a 98 automatic with NO MODS before the 3.5)
his car is actually fun to drive even with it being an auto 
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haha well that sounds like it could be very promising... I have a '97 base with pretty much every bolt-on available and I'm getting tired of slowness

I'm just trying to find alternatives to buying a brand new car... I love the looks of my car its just the performance that is lacking. I know everyone is going the FI route, but I do like having the reliability of the N/A. I'm just trying to figure out all of the different ways of doing it... such as the aftermarket parts, the installation, the upkeep and modifications needed to install... things like that.