-69 340 value??

It's worth more over in Finland than it is here.

Double perhaps.

Here it's worth around 600 as a short block, as a bare running long block, 800-1000 depending upon how many miles.

Separated ...I break it down like this
Block -$400
Steel crank- $150-200
Floating pin rods-$100
2.02 Heads #894 $400-500 #915 $400 #587 $200....then the grey area, those heads that flow more than the others, stock racers are looking for....that can bring 2-3 times the money.
The rest is iron intakes-$150-200 stock 4brl depending on yr.
Aftermarket or direct connection stuff, era correct etc LD340,LD4B Chrysler part # number stuff can go anywhere in $300-600 dollar range. Some yrs choke tower changes, or no tower at all.
Exhaust manifolds early yrs -$500-700
Ones with the butterfly still intact at the higher end of that...though I like them without and braised holes.
Later years are barely worth more than a 360 manifold. 200 bucks