z28mccrory

iTrader: (7)

I'll save the details, but the short version of it is that yesterday a rocker arm broke on my Z06.

The car has TF215 heads on it. I was under the assumption that the TF215's required a special rocker arm.

Now im finding out that they may not require a special rocker arm, but simply an aftermarket set of any LS1 rockers will work.

None the less... because the heads/rockers were already on the car when I bought it, I need to identify what these are (brand wise) so that I can get a new one on the way.

Any help is greatly appreciated. If any vendor reading this can sell me a single rocker arm (or pair), please contact me so that we can arrange the order.

cadivette

iTrader: (1)

Those are Yella Terra. I used mine for 22,000 miles with no problems (1.8).

z28mccrory

iTrader: (7)

Positive on that?

The portion of the rocker where the pushrod cup is seems to be made different (square vs round).

This is off of Yella Terras website:

vettenuts

iTrader: (4)

Those are definitely Yella Terra's. Contact Jim at Yella Terra (Australia) to see if he can help. There were some bad ones made about a year ago and they were replacing the entire set. Here is a link to a thread on the subject, Jim's contact information is in post #57. Link

z28mccrory

iTrader: (7)

Thanks a ton for that information

Hopefully they will take care of this.

The receipt I have from Williams Performance (original installer) that came with my car dates back to early 2009, so its very reasonable to believe these may have been in that batch.

These have ~10k miles on them