I know some of you are a gold mine of info, while some prefer to keep secret. but can anyone here tell me where I can find all the dimensional specs. on mercedes connecting rods for their late model v6 and v8 engines?

I just cant find anyone who has this info available. Other than actually purchasing individual parts.

My idea is to find a rod that will give the little 3.2 motor, say another 1.5 - 2mm stroke. so what do you guys know, ay?