I have an 88 420 sel that i've owned for about 3 yrs, the car is in excellent shape as i am 2nd owner. It was plagued with a radiator that split at the seams on top and was seeping water,but would run fine as long as you added water daily until my wife let our teenage sons drive it to work, any how they got it hot and to make a long story short it's got water in the oil, still runs though, rather than replace the MB engine 4.2v8 it would be more economical for me to swap in a small block chevy 400 and convert it to a 383 stroker motor for some added "sleeper" kick in the pants with quiet exhaust and granny looking decietful styling till i step on the gas!! Has any one done this swap and what are the problems involved i think it should be pretty straight forward since it already has a v8 in it, it will be carbed and eliminate the fuel injection, one wire alterntor from chevy which i have done on my bmw and audi and my earlier MB 240 d diesel i owned some time back. Will the MB auto trans fit to the chevy or can i get one from advance adapters or some one else?? any help would be appreciated I know a lot of you think i should keep it all MB but i am an excellent chevy mechanic and want the added reliability as i don't plan on getting rid of this car, Thanks in advance for any help available i dont know all the number designations on the mods i have seen here but have figured out mine is a w126 the rest of those are greek to me so keep it simple please.