What are they. . .

[Willy Estrada]

I have a 99 Primera GXE, how do I know what kind of Cams I have? I want to look into buying some new cams from JWT but I don’t know if I have roller rocker cams or non roller rocker cams. My manual is in Spanish so the word CAM doesn’t even exist in there.

[G-Forces]

About half way down I give an expliation on how to tell what you have. I suspect you have roller rockers.

[Willy Estrada]

If you are referring to the thread where you posted two pics my engine looks allot more like the second one but I still cant tell the diff between the both.

[b-b00gie]

Take note of the spark plug wire height in relation to the valve cover.

You'll see the difference between the two.


The non roller rocker style is about flush, while the roller rocker valve cover is taller so the plug wires look lower.