How much is a running 400 worth. I have two in mccomb MS about 350 miles away, one is a 76 impala motor still stock with a fairly new crank, it was running but has been sitting in a shed for 19 yrs. The other is in my 68 camaro, It came out of a 77 4x4, don't know about it's bore, i'd have to (keep) the heads (69-70 camel hump with acc holes) It runs, I use it to move the camaro about once a year. I am evintually going to disassemble (to inspect) both of these and get rid of one of them.