This exact thing happened to me after a local machine shop did my heads and didn’t put them back on and didn’t inform me of these. It caused major damage to the entire engine after the valve stuck open. Knowing how important these are why doesn’t the GM Service manual mention these? I sure wish I had seen this video before re-Assembly!
I got talked into doing a cam swap on a LS7 and just started on it. I need to find out what intake valves he has so I can make sure I dont cost him money. Thanks!
@@Sdpartscenter I started to grind down a test shim and realized that indeed the structural integrity would be bad. I needed more than 0.10mm shaved off. It's too bad not very many companies sell these types of shims in a variety pack. The dealerships seem backed up with orders as well. Thanks for the response.
Are the meant to only install on the intake side of the valve stem tip? Should I use them on the exhaust side as well. Just did a cam swap and I am getting some rocker noise. Any help would be appreciated thanks.
Yes, but when servicing the heads, installing stiffer valve springs, or installing a cam, people have a tendency of forgetting to put them back on, or put them on the wrong valve :(
Correct. This isn't required on the stainless steel valves, and the hardened sodium filled valves. There are titanium valves with hardened steel tip inserts, so not necessary on those.
