So I think I stumbled on a good deal, a complete 73 340 engine from a Duster, that the guy wants gone out of his garage. He has had it for many years, after rebuilding it into a 426 Hemi beauty. The car had 33K miles when he pulled the motor several decades ago. The story goes that the previous owner was trying to rebuild the 340, but gave up and sold it. The block was machined +0.030" and looks to be ready, with 10.5:1 pistons. There is also the orginal 340 heads, plus what he called a set of 360 "performance heads" with the casting number of 3418815 A and B. When I search the internet with those numbers, I can't find anything. What the hell are they and what year, etc. They look in great shape and with the valves practically touching, I think they are the 2.02"/1.60" valves. He also has original intake and a polished Al Weiand DP, original carter carb, 340 air cleaner, purple cam (although I don't know how to figure out which one), new dist with adjustability, polished 60amp Alt, 3 speed manual trans and a ton of odds and ends. I am getting it all for $500.
thoughts and information from questions above would be great.