Well i had the pleasure of swapping a cammed and tuned LS1 from a 99 camaro ss into a 1995 nissan 240. A quick rundown of what my shop did out of the ordinary. Drivers side header needed a primary rerouted, custom stainless 2-1/2" exhaust to an early Corsa C5 muffler set, custom raised trunk floor to accommodate those mufflers, custom battery hold down and a full carbon fiber S15 front clip with S15 headlights. Here is a clip of the first trip around the shop and couple pics of some work i did.
https://www.youtube.com/watch?v=-FgmLvzdj-k&feature=plcp