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.

Thanks!

John Lockwood
Technician
Dagwoods
Lansing, Michigan, USA