BenzWorld Senior Member
Date registered: Oct 2006
Vehicle: 1965 220SE sedan (finnie) with 450SE conversion, 1964 220SE coupe project, 1966 300SE coupe
Location: Brisbane Australia
Mentioned: 1 Post(s)
Quoted: 32 Post(s)
Hmmm, how long is a piece of string? You need to think about what floats your boat - hi tech vs simple, how much power, what fuel economy, and what other changes (brakes, trans tunnel) you want to do.
In the MB family, you can go the 190 and 200 as mentioned, the 230-250-280 6's from W111 and W108 will also fit with minimal mucking around. If you want a V8, you could go with 3.5/4.5 from a W108, to even a 560 out of a W126. If you go V8, swap in the rear end from a V8 108 car and massage the trans tunnel a bit. Another mate in Oz here is putting a 240D into his.
Non MB engine swaps that I know of are 350 chev's, ford windsor V8, lexus V8, and even a rover (old Buick) 3.5 V8! The chev and lexus swaps needed custom r&p steering though.
I am doing a 4.5 swap in one of mine. Almost done. But if I had have driven a good car before I started, I may not have bothered. If the trans kickdown is adjusted right and you use it to keep the engine revving, they go quite well. I have a W108 280S motor with twin weber carbs in one of mine and it is good to drive - also swapped the diff so I have 4 wheel disc brakes. Fuel economy is not good though.
Anyway, have a good think about what you are after and how much time and money you want to invest in it. If the car hasn't been run for years and years then I reckon you could easily chew up about $5k in bills for replacing/refurbishing all the fuel system and brakes, probably need all new rubbers (bought a genuine door rubber for $200 last week - that is for 1 door!). Add paint as well, and you are spending way more than the car would be worth. but since when have cars been about logic??!!
Good luck, Drew inoz