LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Anyone run aftermarket rockers with stock valve covers?

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Old May 10, 2005 | 12:44 PM
  #1  
96speed's Avatar
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Anyone run aftermarket rockers with stock valve covers?

I had to cut the valvecover (vc) supports to make enough clearance for my comp promag rockers. I've been fighting leaks ever since. I've tried to torque the vc down more and more but leaks just the same.

Anyone figure out a way to stop the leaks?

Ryan
Old May 10, 2005 | 12:52 PM
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klpps's Avatar
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Re: Anyone run aftermarket rockers with stock valve covers?

taller valve covers....
Old May 10, 2005 | 01:03 PM
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Re: Anyone run aftermarket rockers with stock valve covers?

LT4 composite valve covers, worked for me without modification. You could've only trimed the supports, no need to cut them completely to clear the promagnums.
Old May 10, 2005 | 02:29 PM
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Re: Anyone run aftermarket rockers with stock valve covers?

How much did you hack out to fit the Pro Magnums in? All I had to do was take the web off on one side of each support tube. No leaks at all.
Old May 10, 2005 | 02:33 PM
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Re: Anyone run aftermarket rockers with stock valve covers?

I removed the webbing and the tubes, regretfully. Would like to avoid buying new valve covers. Might have to go with some new stockers...

Ryan
Old May 10, 2005 | 02:43 PM
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Re: Anyone run aftermarket rockers with stock valve covers?

Doing the same thing soon. Anybody have pics of where and how much to notch the webbing?
Old May 10, 2005 | 03:01 PM
  #7  
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Re: Anyone run aftermarket rockers with stock valve covers?

Just cut away the web on one side.... do NOT remove the tubes. Check Shoebox's Tech Pages for photos. You also have to tweek the baffle for the PCV vent tube connection, and I believe he has that how-to on his pages.

http://shbox.com/1/4th_gen_tech1.html
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