Conversion procedure for LZ series VVT 3500/3900 engines:

Rotate upper and lower intake manifolds to face front of engine

Switch timing chain cover

Change camshaft and cam bearings

Install coolant return system

Install cable driven throttle body using adapter

Modify bottom front of oil pan to clear front crossmember

Install 3400 ICM & Coil packs

Install external crank trigger

Saw/grind off ear on side of block to clear header