breaking valves
#1
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here is what I have found in 2 sets of ls3 heads with the same spring retainer and keeper set up. 153 400 open spring Correct installed height
8 valves in 1 set with 600 miles on them never reved over 6000 and only about a dozen times
1 in my set of heads with 30-40 miles and 6500 1 pass a couple times on the street
Stock valves stock rockers geometry is good
![](http://i1012.photobucket.com/albums/af247/gray86hatch/1ed19501.jpg)
![](http://i1012.photobucket.com/albums/af247/gray86hatch/d837db0d.jpg)
8 valves in 1 set with 600 miles on them never reved over 6000 and only about a dozen times
1 in my set of heads with 30-40 miles and 6500 1 pass a couple times on the street
Stock valves stock rockers geometry is good
![](http://i1012.photobucket.com/albums/af247/gray86hatch/1ed19501.jpg)
![](http://i1012.photobucket.com/albums/af247/gray86hatch/d837db0d.jpg)
![](http://i1012.photobucket.com/albums/af247/gray86hatch/085d839a.jpg)