BADASS of New England

An automobile club for the enthusiast who enjoys the last of the big GM cars. The rear wheel drive B and D bodys. Chevrolet Impala SS, Caprice, 9C1, Buick Roadmaster, Oldsmobile Custom Cruiser, Cadillac Fleetwood
 
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 Header wrap or no?

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MASShole9C1

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PostSubject: Header wrap or no?   Thu Mar 10, 2016 3:39 am

I've had a set of BBK shorties for 2 years now. No hook up pipes so I've been waiting to get those and some locking studs before installing them. Already have gaskets and.....

I started wrapping them with that DEI wrap and stainless ties. The factory coating was flaking so I had to strip away all of what was left. I'm about 70% done and that's a lot of $ spent plus I used a few cans/coats of VHT hi temp header paint. So, kinda passed the point of no return. My buddy whose gonna help me slap this mess together told me not to use wrap because they'll rot from the inside out from the wrap trapping moisture. I get that, but I also get that headers tend to cook the under hood area of our B bodies.

I want to keep the wrap after all the work and money. I plan to reroute the heater hoses away from them. The car isn't really a DD, so what say you guys?


Last edited by MASShole9C1 on Thu Mar 10, 2016 7:29 pm; edited 1 time in total
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IMPALADAKID
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PostSubject: Re: Header wrap or no?   Thu Mar 10, 2016 5:38 am

BBK are stainless, so if you are wanting to cut down on heat go ahead.

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1980 Cadillac Coupe DeVille. 6.0 87k
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MASShole9C1

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PostSubject: Re: Header wrap or no?   Thu Mar 10, 2016 7:29 pm

IMPALADAKID wrote:
BBK are stainless, so if you are wanting to cut down on heat go ahead.

That's my thought. They aren't cheap headers so I can't see them becoming salt water boat anchors. I almost sold them too. Nobody wanted barely used headers on the cheap. They are like $500 new. I paid like $30 at pick n pull for them. They were in an '83 Caprice with an LT1 frame swap. They cut the hook up pipes to get the cats out tho :/

I wonder if these will increase performance much. They already came with the emissions check valve ports capped and EGR block off plates. Anybody wants those I'll sell em.
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MalibuSSwagon



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PostSubject: Re: Header wrap or no?   Thu Mar 10, 2016 9:40 pm

The issue with header wraps is that basically it holds the heat in and cooks the metal, over time this could cause cracking. Might not be a big deal on a weekend car like your 9C1, but I'd look into ceramic coating, not cheap however.

http://www.centuryperformance.com/exhaust-header-heat-wraps-do-not-use.html

Do your research. I did wrap the header on my old Honda, it was a brand that was known to crack but I did apply it over the existing factory ceramic coating so that may have helped save it, and it was cheap wrap off ebay so it may not have been doing anything in the first place.
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