[Porsche-O-Phile]

Given the large disparity in desirability between n/a cars (particularly early models) and turbo ones, I'd say in order to pull off a trade like that your '84 would have to be in exceptional condition - probably damn near concours quality, otherwise you can expect to toss in a pretty sizeable wad of cash as well. Case in point, my 951 is by no means perfect - it runs strong and mechanically is very solid but has a few minor paint issues, etc. There's no way I'd even consider less than $8k for it. For a '84 n/a, you'd be lucky to get $4k. . . Maybe you could get higher if the car was extremely clean and had a fully-documented history, etc.

Honestly you're probably best off either selling your '84 for cash or keeping it and saving up for a 951 unless your car is pristine. If it is, shoot me a PM and we can discuss (I might be interested in entertaining this). I would however trade my 951 for an early 911 one-for-one a lot more willingly. . .