I've been wanting a 340 for my Challenger for the past several months and I came across one for sale.
Its a late 72/73 cast crank long block with 587 heads. And there's a freshly machined .020/.020 forge crank w/ bearings.
Is $600 for the setup reasonable?
I'm gonna use the heads on my 318 after I have them milled .010 to .020, and I'll rebuild the 340 with the forged crank over time.