Yes there was, I know of three Dakota trucks and two ram trucks from my Dakota sites and a couple facebook pages that had problems with valves siezing and breaking with the older version heads. some were out of the box, some were installed and "checked" by a performance shop that I will not name to avoid a flame war.

Last edited by slammedR/T; 06/08/17 08:05 PM.
2000 Dakota R/T, 408 magnum, 727, Indy heads
1000cfm 4150 carb, 93 octane fuel.
motor; 10.258 @ 132.78
200 shot; 9.262 @ 144.69
racemagnum