ok have a few questions for you lot.
I'm looking at getting either a 1.9 8V engine or 2.0L 8V long stroke engine, not going for 16V now, what components do I need to change from my standard set-up from 1.8 GTI?
1. Oil pump?
2. Throttle body?
3. regulator?
4. Inlet manifold?
Any good links on this sort of upgrade would be helpful...?

Also does anyone know where I can get all new bolts, screws, washers etc for the engine?