Rb25 s3 indentification questions

[240Lover770]

As the title says. I have a rb25. But the CAS is from the 34 and the coil packs are from a neo. I also have no head drain tube.
The ecu reads: 2371M 13v02 MEC-R722R 9630
From what I could find searching google it says it's from a 98-2000 ECR-33
From what I read on wiki is that Nissan started putting neo heads onto 25 blocks and using a few parts from the 26. Mine has side feed injectors as well. I can't seem to find any good info besides what I read on wiki to confirm what the engine truly is. So I made this post to see if anyone knew or had any type of information.

[RB25GUY]

all RB25DET motors have head drains for the VCT unless it was deleted by the previous owner it could be a RB25DE from a R34

25 GT, GT-X (4 door model), 2.5 L RB25DE NEO I6, 200 ps (147 kW)
GT-V 2.5 L RB25DE NEO I6, (147 kW)

[240Lover770]

The head drain doesn't look like it was ever put there. I don't know how to load up pics on here otherwise I would show you.

[mixeds14]

The head drain doesn't look like it was ever put there. I don't know how to load up pics on here otherwise I would show you.

Neo's don't have the head drain.. it has the spot on the head were it supposed to though..

[240Lover770]

Yea but I'm using an s2 harness

[240Lover770]

It's just confusing because I use an s2 harness

[mixeds14]

It's just confusing because I use an s2 harness

Well my det neo doesn't have the head drain, has a black plastic cas, solid lifters and came of a r34 and the harness plug is gray. Maybe that can help you out a bit.
Some later model r33 s2 came with a black cas aswell though. I believe the harness plug is white/blue. If I remember right.

[240Lover770]

My harness plug is blue. But I believe it's a reused harness from the s2 my car used to have