I have heard that it is possible to fit W126 springs to a W123 chassis to stiffen up the handling. If Bilstein HD shock absorbers are also fitted, the W123's handling is apparently transformed.

Aside from the sacrilege of modifying a W123 in such a way, does anyone know how easy it is to fit the springs? Do they have to be cut down to compensate for an increased ride height?

I'm thinking that such a modification might raise the 280E's handling to even higher levels - and one could get the acceleration to match simply by dropping in the 3.54:1 ratio final drive gear.

Thoughts, comments gentlemen?