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Heat Tab
Posted to Technical Discussion Forum on 3/1/2017 15 Replies

[2002 Cadillac DeVille, Engine/Propulsion Photo] [2002 Cadillac DeVille, Engine/Propulsion Photo]

I found this heat tab on the rear cylinder head of a 4.6 liter Northstar in a 2002 Deville. I don't usually work on many of these, and I don't have much experience with heat tabs.

Does anyone have idea how hot this thing may have gotten.


John Lockwood
Lansing, Michigan, USA

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car Vehicle Data

2002 Cadillac DeVille 4.6L

Engine4.6 L
Trans4-speed Automatic (Electronic)