5.3 Valley cover when going carbed?
09-18-2009, 10:50 PM
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5.3 Valley cover when going carbed? I have a 2000 5.3 engine that I will be installing the Edelbrock performer carb intake with the MSD programmable spark box. What should I do concerning the knock sensors and valley cover area. I have tried to read up on the EGR issues, but there is alot of different applications out there that don't seem consistent. Should I not use my knock sensors at all, and use a later model valley cover or LS6 version without the knock sensor holes? Any help on this would be greatly appreciated. Thanks.
09-19-2009, 10:42 AM
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The MSD box doesn't have the wiring to hook up the knock sensors. I keep the LS1 cover, removed the knock sensors and used some RTV on the rubber plugs and put them back in the hole so it wasn't open.
09-20-2009, 08:01 AM
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If I could find a 2004 or later valley cover, I think those don't have the knock sensor holes. I think sometime GM moved the knock sensors out of the valley and to the sides of the block. Someone correct me if I am wrong, but is that also an option? I did find out the LS6 still has the knock sensor holes, just a different EGR setup.
Last edited by fasteddy51; 09-20-2009 at 08:19 AM.
