Big Block/A-518

@ Guitar Jones. Non-lockup? That surprises me very much. I'm not a Mopar expert but what I remember reading about the A-518 is this; they were introduced in 88 or 89 and were made until 95. After 95 they were replaced by a computer controlled decendant that used some of the same hardware but could not be used without the puter. I actually have two of them. One is from a 89 and the other is from a 94, both RAM vans with 360s. I think the 89 was a 250 (3/4 ton) and the 94 was a 350 (one ton). They appear to be identical and both have the mechanical kickdown lever like a 727. Again I stress that I'm no expert but I have a hard time thinking that detroit was still making non-lockup trannies at the time the A-518 was introduced, especially considering that the 727s had gone to lockup years before that. With that said, are you saying that the stock verter is not up to the task, cuz I really hate high stall verters, have come to realy like lockup and I'm running a relatively mild 440 which should make plenty of torque by 2500 rpm and I'm using 4.56 gears, so I think high stall is not needed and may actually hurt the performance.