jperris

Does anyone have pics of the '07-up L61 intake cam vs. the earlier L61 (or LSJ) intake cam?
I know the late cam has a 4x reluctor wheel on the back end of it, but i'd like to see pics.

Edit: I don't think my question was clear. I would like a pic of the rear part of the early L61 (or LSJ or aftermarket) intake cam. Also, I would like a pic of the rear part of the late L61 intake cam if anyone has it.

umrdyldo

iTrader: (1)

can u just take your valve cover off?

Switt23

iTrader: (7)

lol its like 6 or 7 bolts and walla.

jperris

My question wasn't clear. Above post edited. I'm looking for the physical differences between the early and late camshafts. Since I only have the late style cams under my valve cover, taking it off would only give me half of what I need. Also, It would be easier for someone to post a pic than for me to take off my coils and valve cover. I know it's an easy job, but after working on cars all day at work, the last thing I want to do is take apart my own car.

italstalnprd86

I can sell you some off an 04 cavalier......

Halfcent

I might have a pic, let me look. I can tell you they "look" identical. The exhaust cams are the one that changed to now include a cam position sensor. The intakes are all the same.

jperris

The exhaust cams are the same. Also, the intake cams are different enough that the early one wouldn't physically fit in the '07-up head. See my post w/ photo in the thread entitled "technical help on cams"

Quote from GM Ecotec Camshaft Info Sheet:

Notes regarding camshaft interchangeability:

- The L61 (2.2L ECOtec) camshaft changed for the 2007 model year. This change was to go to a less
aggressive cam profile with less noise, less jerk, less impact load, and better valve dynamics.

- The 2007 L61 intake cam cannot interchange with any other production ECOtec cam.

- The 2007 L61 exhaust cam is interchangeable with the ‘06 L61 and the LSJ exhaust cams.

- The 2006 L61 intake and LSJ intake and exhaust cams are the same casting. However, the LSJ cam
sensor is driven with a hex bushing pressed into the rear of the exhaust cam. In order to operate
properly, the production LSJ cam sensor requires a cam which has a hex bushing pressed into the
exhaust camshaft with the exact orientation in angularity to the cam.

- The 2006 L61 cams and LSJ cams are the same profiles at different timings. The 2006MY L61
timings are 116 intake, -103 exhaust. The LSJ timings are 100 intake, -115 exhaust.

- The LNF and LE5 exhaust cams could interchange. The LNF and LE5 cams are not interchangeable
in any other way or with any other ECOtec cams.