snketr

iTrader: (2)

Why do you need to change the valley cover when doing the DOD delete?

Tig

iTrader: (2)

I believe it has to do with blocking passages as well as keeping pressure.
Why have flowing oil going through passages that are not necessary and not in use.

1994Vmax

iTrader: (4)

You need to block the standoff's that the solenoids attach too in the lifter valley to keep oil pressure from bleeding off. The non AFM valley cover has dimples with o-rings to block those passages.... like a cover off a Gen IV 4.8, iron 6 liter or LS3 is exactly what you need.

91LT16SpeedFormula

iTrader: (35)

I have a black aluminum Summit one if your looking for one