quote:Originally posted by icole: I don't know. I think it has roller cams. I shift before 7000 RPM, but I held 3rd, and was between 7000 - 7100 at the end of my run. 126.1 MPH.
If you have clacking noise and it pulls to 7000 it is likely a solid cam, and may be solid roller. If solid, you need to set the lash whether it's a flat tappet or roller, as too much lash can lead to premature valve train failure. If you have solid rollers, you should pull and inspect them every few thousand (2-4k) miles depending upon driving and spring rates. The needle bearings in the rollers have a hard time getting proper oiling and they live a hard life.
quote:If I pull the valve cover will I be able to tell what type of lifters. I suspect solid roller lifters.
No. You'll need to pull the intake and have a look at them in the valley. You might pull the distributor and see if it has a bronze gear. If it does, it is likely a billet cam blank and that means roller cam.
Best,
K