My Grandfather had a 53 Chrysler New Yorker (Hemi) that he put 340 thousand on and never had the valve covers off. My Mother had a 56 Desoto Fire Flight (Hemi) that went 250k before Dad sold it, boy was she pissed. I had a 67 Chrysler New Yorker 413 (wedge) that I personally put over 300K and a 94 Dodge Van (318) that we sold 3 years ago, with 386 THOUSAND and it's still running. My 2000 Dodge Ram (5.9L) has 240ish and still runs like new.
Maybe, you guys should have bought a different brand!!
.......Just saying!!