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Re: [GMCnet] OEM intake manifolds and cracks, symptoms? [message #335679 is a reply to message #335676]

Thu, 26 July 2018 18:00

James Hupy

Messages: 6806
Registered: May 2010

Karma:

Senior Member

Don't know if that aluminum pour is necessary, but it should work,
particularly if the block off plates are used. It can't hurt anything. Some
people, the money to pour the aluminum is no big deal, yet, some would
resist that expenditure like having their wisdom teeth pulled. Each his
own, I say.
Jim Hupy
Salem, OREGON
78 GMC ROYALE 403

On Thu, Jul 26, 2018, 3:35 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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[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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