3400-3500 Engine Swap

[ATownDown]

Hey, I've been researching how people have swapped a 3500 into their oldsmobile.. I was on WOT-Tech pricing out some parts (Intake Manifold, Lower Manifold, and Cylinder Heads) I was wondering will doing this swap give me more horsepower? Is it fairly simple? (For someone who can turn a wrench) Does the transmission work in the same way and will i need to do a shit ton of wiring? Or do these parts basically fit like a 3400?


If my car wasn't torn apart I'd post a picture but seeing I drove it into a pole when i had a few oat sodas the body kit is effed. Help will be much appreciated asap because like i can i pretty much have the engine out of my car.