BEWARE of doing business with 340bird71
Also keep in mind the low compression 72 340 setup isn't as desirable as the 68-71... not that it couldn't be beefed up to earlier specs but there are differences.
But these are the things the buyer as to know going in...In my opinion a low compression 340 in a rebuilt state is worth 2 grand ish...now it costs more than that to rebuild it and if you did rebuild it, I personally would add beefier components in terms of high compression pistons and or if I ran flat tops I may run closed chamber heads like aluminum Edelbrocks I guess what I'm saying is a low comp 340 isn't worth much to me and I wouldn't want to pay what someone has into a rebuild of one.an early 340 rebuilt drop in the "good one" I'd bet is getting on to 4 grand or more...these are my opinions I my be wrong. If I recall correctly the early 340 was rated at 275 HP the later was rated at 235 Horse power which is the same as a late 60s 318. Now the 70s smogger 318 I believe went down to 150 Horsepower. In short if I was to buy a late 72-73 340 Id wan tto open it up and modify it. OR at least bump compression with closed chamber heads.