Id say its worth it if it runs and the trans works. If its a low comp 340 then no, the price negotiations begin...still its going to need disassembled cleaned up...that's basically 3 for the engine 1 for the A 833 if its a high comp 340...in my opinion. Id say low comp 340 is 1500 dollars...the only thing I dislike about them is the external balance still, if you had the high comp internals the low comp block and heads could be made to work...but the heads would need punched out to 2.02s