3.8 2 bbl to 4.1 4 bbl conversion?

[joesregalproject]

I'm considering converting my 3.8's bbl to the 4.1 quadrajet. I know you have to swap the intake out, but is the intake and carb the only things you have to change? I know you also have to change the air cleaner, but that's no big deal. Also are they all direct fit? Or am I going to have to re route wires and hoses, etc? If I'm gonna have to move things around or get rid of things I don't think I want to swap, I'll just rebuild my current carb.

 

[joesregalproject]

 

[Peter]

I'm not sure if the stock plug ins for the carb are the same/control the same thing. Gotta check whether you got an electric or hot air choke, electric would be easiest otherwise you'll need to convert to electric or ensure your new intake will work with a hot air setup. I'm sure you'll need a new fuel line and perhaps your brake booster line comes off the intake so you'll need to be sure. Gotta check whether your water sensor is the same thread size as the new intake. There are plenty of things to check but they should be fairly obvious