Originally Posted by
28HopUp
Thanks Jake!
As I understand it, you can swap both intakes (upper & lower) and split-port heads from a 99-04 3.8L onto the older single-port engines (94-98). You might be able to do a split-port swap onto the older 3.8L engines as well, but I'm not 100% sure. But you must match the lower/upper intakes to the correct head design in order for the swap to work (i.e. you can't simply swap the intakes). This will be our first time doing the swap, but I have several friends who can help us along the way if we encounter any problems. Once the mechanicals are handled, then we will have it towed to a local speed shop to be dyno tuned (due to the new camshaft).