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Checked out the heads today

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Old 10-29-2010, 10:15 PM
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Default Checked out the heads today
Well, only the "good" side so far. Here a some pics of the valve seals on the left head, or what's left of them. #7 exhaust valve stem didn't slide out real easy like the others either.

Original carnage thread https://www.performancetrucks.net/fo...d.php?t=470198





#1 exhaust

#1 exhaust

#3 intake

#1,3,5 intake- scratches on #1 are from pulling it off. The others were already off or loose

#1.3.5 intake

#3
Last edited by DrX; 10-30-2010 at 01:27 AM.
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Old 10-29-2010, 10:30 PM
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dayum!! that sux, deffinitely some major surgery needed!!
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Old 10-29-2010, 10:37 PM
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Whos heads?
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Old 10-29-2010, 10:53 PM
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Originally Posted by 1slow01Z71
Whos heads?
ETP LS7 style LSX heads.
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Old 10-29-2010, 11:30 PM
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How much valve lift in your setup? And which valve springs are those?
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Old 10-29-2010, 11:42 PM
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Originally Posted by DrX
ETP LS7 style LSX heads.
You going to send them to MAST now to see what the root cause is?
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Old 10-30-2010, 12:07 AM
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Originally Posted by AKlowriderZ71
How much valve lift in your setup? And which valve springs are those?
Engine specs:





Last edited by DrX; 10-30-2010 at 12:15 AM.
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Old 10-30-2010, 12:28 AM
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Hmmm, well I see that the heads came assembled to you. Not much info on which valve springs those really are. That cam & rocker combo puts you at .630 and .635 lift, on small combustion chambers. To me, it looks like the valve springs were not up to the task.
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Old 10-30-2010, 01:21 AM
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Originally Posted by AKlowriderZ71
Hmmm, well I see that the heads came assembled to you. Not much info on which valve springs those really are. That cam & rocker combo puts you at .630 and .635 lift, on small combustion chambers. To me, it looks like the valve springs were not up to the task.
Apparently, the heads were shipped to the engine builder with the valves and springs assembled. Spring description is only "upgraded dual springs"

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Old 10-30-2010, 07:41 AM
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Are those the correct seals for that application? What do the valve guides look like?
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