The 340 is the biggest POS V8 Chrysler ever made.

Real ball busters to play with chain, cam etc. It was designed to heat up fast for 60's smog reduction. I have wasted too much extra time draining water and flushing out oil pan after accessory work. It runs fine, but a 383 would be better for the long run. I have a 440 in an E Body, so I know the 383 like my Dad had, handled better than either my 440 heavy in turns or the zippy 340 in the E body that got buffeted in the wind going up big grades.