Hey again guys... I found a local 1983 Mercedes 380SEL, which I think has the single row chain. The PO is unsure of if/when the chain/guides/rails were changed, so it definitely needs changed. The car is worth "saving", its nice and runs good and its cheap. Runs smoothly and quietly, transmission shifts perfectly, NO rust!

I have heard were people change these to double chains? About how much more work is involved in converting these to be like the engines (double chains) on the 1984-85s?

Thanks!