1969 340 Motor

Hi there guys, looking for the missing motors from our cars. We already have a 408 and rebuilt 388 horse 340, but if we could find the originals it would be nice! I know its like finding a needle in a haystack but its worth a shot! Full motor or if only the block is remaining, running or hole in the cylinder, doesn't matter, it would be nice just to have them! The vins for the two cars are as follows:

- LM23P9B386796

- LM23P9B374012

Any help is appreciated!