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[GMCnet] Firing order [message #370799] Wed, 30 November 2022 13:16 Go to next message
Hanson Email is currently offline  Hanson Email   United States
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Anyone have the firing order for a 403 handy?

Thanks.

Dean hanson Fremont.

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[GMCnet] Re: Firing order [message #370800 is a reply to message #370799] Wed, 30 November 2022 13:58 Go to previous messageGo to next message
Dave Stragand is currently offline  Dave Stragand   United States
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I believe it is the standard 1-8-4-3-6-5-7-2. (Please y'all correct me if I'm wrong!)

-Dave

1978 Transmode near Pittsburgh
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From: Hanson Email
Sent: Wednesday, November 30, 2022 2:16 PM
To: gmclist@list.gmcnet.org
Subject: [GMCnet] Firing order

Anyone have the firing order for a 403 handy?

Thanks.

Dean hanson Fremont.

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1978 Transmode (403) Pittsburgh, PA

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[GMCnet] Re: Firing order [message #370801 is a reply to message #370799] Wed, 30 November 2022 14:26 Go to previous messageGo to next message
Dolph Santorine is currently offline  Dolph Santorine   United States
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Interested. It looks like my posts are not getting through.



> On Nov 30, 2022, at 1:16 PM, Hanson Email wrote:
>
> Anyone have the firing order for a 403 handy?
>
> Thanks.
>
> Dean hanson Fremont.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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Re: [GMCnet] Firing order [message #370802 is a reply to message #370799] Wed, 30 November 2022 18:27 Go to previous messageGo to next message
GMC Cruse is currently offline  GMC Cruse   United States
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18436572 and distributor turns counter clockwise

Mike K. '75 PB Southeast Michigan

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Re: [GMCnet] Firing order [message #370803 is a reply to message #370802] Thu, 01 December 2022 03:11 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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On a 455 the firing order is cast into the top of the intake manifold. I do not know if they did the same on a 403. Some versions of the GMC manual had distributor pictures wrong. Two cylinders are reversed. Do not believe the book.

I also believe it is 18436572, but look for the numbers cast in the manifold.

Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana

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[GMCnet] Re: Firing order [message #370805 is a reply to message #370799] Thu, 01 December 2022 10:25 Go to previous message
Joe Gricius is currently offline  Joe Gricius   United States
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1-8-4-3-6-5-7-2 distributor turns CCW

On Wed, Nov 30, 2022, 13:17 Hanson Email wrote:

> Anyone have the firing order for a 403 handy?
>
> Thanks.
>
> Dean hanson Fremont.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
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