Duramax Diesels Forum Truck of the Week
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Old 05-25-2019, 08:00 PM
mac2881994 mac2881994 is offline
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Default Heat shield question

I am in the process of putting my engine back together for head gasket replacement. Question is how important are the factory heat shields for the manifolds, up-pipes and down pipe? I had a couple of the bolts twist off when removing and if it is not going to be detrimental to the longevity of the truck I dont really want to hassle with drilling and tapping the rusted bolts. I am not opposed to wrapping if it is absolutely necessary.

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Old 05-25-2019, 08:04 PM
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If you tow heavy and live in hot climate, I’d run them just to keep heat off the firewall. Otherwise I wouldn’t worry
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Old 05-26-2019, 06:44 AM
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You could always buy a set of Levi's up pipe blankets, if you wanted to upgrade.
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Old 05-26-2019, 11:52 AM
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Quote:
Originally Posted by TheBac View Post
You could always buy a set of Levi's up pipe blankets, if you wanted to upgrade.
^^^^

I don’t even bother putting the factory shields back on. If there is concern put blankets on everything and it will spool better.
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Old 05-26-2019, 12:44 PM
mac2881994 mac2881994 is offline
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Thanks for the heads up all. I didn't think it would be a major issue but it never hurts to ask.

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2004.5 GMC Sierra 2500HD Crewcab
20x10 Fuel Hostage
305/50x20 Toyo Proxes ST2
EFI Live w/DSP5 and Idaho Rob tunes
Edge insight CTS2
4" turbo back exhaust
Sinister EGR delete
Sinister PCV reroute
Kodiak MP
Nicktane fuel filter
FS2500 bypass oil filter
TransGo Jr
Wherli one piece Y-Bridge with 3" hot and cold side charge pipes
Air Dog Raptor lift pump
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