LSX oil pumps
As far as the pump goes they are all the same.
The pickup tube has to be the matching one for the pan, they are all diff. lengths.
The o-ring should be the same, i believe all the tubes have the same neck.
As proof, I offer this relatively obscure pict of the final work.
As proof, I offer this relatively obscure pict of the final work.

There are indeed two different types of o-rings for the ls1 oil pump and one for the 6.0l oil pump. The 6.0l o-ring is thicker than the ls1 o-ring. They appear to have the same diameter inside and outside.
There is also a difference in the oil pumps. The depth from the mounting flange surface to the bottom of the o-ring groove is different on both pumps. The 6.0l is deeper than the ls1 pump. A difference of about .070"
I'm going to use the 6.0l o-ring with the ls1 pickup tube. If anyone else can confirm or deny that this is a good idea please jump on in. For reference it is a 98 ls1 pickup tube and a 2004 6.0l lq4.


