The 340 is the biggest POS V8 Chrysler ever made.

Back in the day, I saw 340`s w/ the same thing done to them as 350 chevys, cams-heads - valve size-auto. trans-race gears- slicks- the 340 would whip the 350`s *** , on the dragstrip! You build them exactly the same everything the 340 will win!

That's probably a pretty accurate statement......but remember, there were many factory versions of the 350 and really only one of the 340. Man, I sure wish they had stuffed a solid cam in the 340 and gave it some real HP heads. It wouldda been no contest for sure then.