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Just started to replace intake/head gaskets on 98 4.3 Vortec…

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Just started to replace intake/head...
Just started to replace intake/head gaskets on 98 4.3 Vortec (X) . It was essentially given to me. I have intake off and in reading discovered there is a huge problem with intake gasket disintegration. How do I know it was that and not head gaskets? pain to pull the plugs to examine and pressure test each hole! The 6 intake manifold ports on heads and intake have Zero of the light Brown bad cake mix anywhere inside or into the valve chambers and it is everywhere else. Any deep thoughts?
I have no desire to pull the heads or do much more. I am pooped and had recent 4 level re-do on a my spine with post op 3 week hospitalization and home IV antibiotics.
Submitted: 2 years ago.Category: GM
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Answered in 1 minute by:
2/28/2016
GM Mechanic: Gary, GMC Technician replied 2 years ago
Gary
Gary, GMC Technician
Category: GM
Satisfied Customers: 18,027
Experience: 15 years gm master tech/15 years ASE master tech
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was the plastic lower intake manifold gaskets cracked and broken at all ?

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