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Re: [GMCnet] OEM intake manifolds and cracks, symptoms? [message #335678 is a reply to message #335676]

Thu, 26 July 2018 18:07

Ken Henderson

Messages: 8726
Registered: March 2004
Location: Americus, GA

Karma:

Senior Member

Or, for those who insist on DIY:
http://www.gmcmhphotos.com/photos/g3115-plugging-intake-manifold-exhaust-crossover.html

Ken H.

On Thu, Jul 26, 2018 at 6:35 PM Larry wrote:

> Don't know if anyone has mentioned this yet, but here goes.
>
> Take your manifold to your nearest foundry. Put a block-off plate on one
> or the other crossover ports and have them pour it full of aluminum. See
> this:
>
> http://www.gmcmhphotos.com/photos/g4571-pouring-the-455-crossover.html
>
> It did two things. Blocked the crossover, and even though the manifold did
> not cracks, it would seal manifold cracks. Think I paid $25 or so. Still
> put the SS plates on the ports to keep exhaust gasses from reaching the
> aluminum. Didn't think it would be a problem, but did it anyway as a safety
> measure. JWID
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach

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[Message index]

		OEM intake manifolds and cracks, symptoms? By: GMC2000 on Mon, 23 July 2018 00:34
		Re: OEM intake manifolds and cracks, symptoms? By: jhbridges on Mon, 23 July 2018 07:37
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: USAussie on Mon, 23 July 2018 08:41
		Re: OEM intake manifolds and cracks, symptoms? By: GatsbysCruise on Mon, 23 July 2018 10:32
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: James Hupy on Mon, 23 July 2018 11:11
		Re: OEM intake manifolds and cracks, symptoms? By: GMC2000 on Mon, 23 July 2018 22:26
		Re: OEM intake manifolds and cracks, symptoms? By: pjburt on Mon, 23 July 2018 23:15
		Re: OEM intake manifolds and cracks, symptoms? By: GMC2000 on Wed, 25 July 2018 00:43
		Re: OEM intake manifolds and cracks, symptoms? By: jhbridges on Wed, 25 July 2018 08:17
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: jimk on Wed, 25 July 2018 08:49
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: sgltrac on Wed, 25 July 2018 12:54
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: jimk on Wed, 25 July 2018 13:36
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: sgltrac on Wed, 25 July 2018 14:23
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: jimk on Wed, 25 July 2018 15:37
		Re: OEM intake manifolds and cracks, symptoms? By: JohnL455 on Thu, 26 July 2018 09:26
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: jimk on Thu, 26 July 2018 09:32
		Re: OEM intake manifolds and cracks, symptoms? By: Larry on Thu, 26 July 2018 17:34
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: Ken Henderson on Thu, 26 July 2018 18:07
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: Richard Denney on Thu, 26 July 2018 19:44
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: sgltrac on Thu, 26 July 2018 20:44
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: James Hupy on Thu, 26 July 2018 18:00

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