Questions About Older Bimmers

[Skullet 83 533i]

hi, im new to the board, and dont know much about my car yet, and i have some questions that im hopin a guru here might be able to answer for me... my car is a 1983 533i, it has an inline 6/4 door/5-speed. not sure the size of the engine, cuz it has both 6-cyl sizes on the intake plenum, like this: 3.2/3.5. so its one of those two.

1) would a turbo manifold made for a newer bmw 6 work on my engine?

2) how hard would it be to convert my old-style headlights into the newer-style enclosed lights?

3) are there any places besides crappy-ass NOPI that sell performance parts for a bimmer as old as mine?

4) now that im actually askin questions my mind is comin up blank, but if i can think of anything else, and ppl are responding, ill go ahead and think of some more. heheh...

thanks for readin, and BIG thanx if u respond with some helpful advice!!

[Skullet 83 533i]

hell yeah, thanx a lot man!! i really appreciate the reply!