I have a 300d and I'm wanting to install a turbo, as the 3.0l is a little weak when naturally aspirated. What I need to know is are there any internal engine parts that need to be changed/upgraded in order to handle about 10lbs of boost from a turbo? Where is a good place to look for these parts?

you need the nitride crank the oil squirters, the valve train.... it would be cheaper and easier to put a turbo engine in

Could I still use a turbo and get away with a max boost of maybe 6-8lbs using stock components?

i take it you want more power off the line in your NA.... easy solution.. get a 4 speed and drop the slush box automatic in the trash

stock boost on the turbo om617 is 11 psi i belive and at cruiseing speed 2500 rpm's my boost is 8 psi... the non turbo could possible handle it.. but i wouldnt want to risk more than 3-4 psi with it

Well, the car I have is junk-it's been wrecked-I'm putting the engine in a Bronco2 and plan to mate it to a 5sd stick shift

Are you on TRS?

__________________
1987 Mercedes 300D

which 5 speed.... not a mercedes 5 speed since those are as rare as rare can get