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Spark Plugs for Mondello 455 with Aluminum head [message #276312]

Mon, 20 April 2015 15:31

Leith

Messages: 7
Registered: January 2015
Location: Temecula California

Karma: 0

Junior Member

Hi all,

I just picked up a '77 with a Mondello 455. It has aluminum heads so the socket size of the current plug is 5/8" as opposed to the stock 13/16". The plugs currently installed are Accel 763. Has anybody got that set up that would let me know what spark plugs they're running please.

Thank you

[Updated on: Mon, 20 April 2015 15:38]

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Re: Spark Plugs for Mondello 455 with Aluminum head [message #276313 is a reply to message #276312]

Mon, 20 April 2015 16:07

Loffen

Messages: 1087
Registered: August 2013
Location: Norway

Karma: 1

Senior Member

Check the link , there you will other brands with the identical plug http://www.sparkplug-crossreference.com/convert/ACCEL/763

I guess you will have to work a little to find the correct heat range as it will be different from the original cast iron head, but the last page on this link will show what edelbrock recommends and those heads are similar to yours http://www.theengineshop.com/images/pdf/SparkPlugs.pdf

Read this article http://www.hotrod.com/how-to/engine/spark-plugs-tips/

1973 23' # 1848 Sky Blue Glacier called Baby Blue and a 1973 26'-3 # 1460 Parrot green Seqouia Known as the Big Green, And sold my 1973 26'-2 # 581 White Canyon lands under the name Dobbelt trøbbel in Norway

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Re: [GMCnet] Spark Plugs for Aluminum head [message #276316 is a reply to message #276312]

Mon, 20 April 2015 16:58

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

G'day,

Call Mondello.

Regards,
Rob M.

-----Original Message-----
From: socalpaddy@gmail.com

Hi all,

I just picked up a '77 with a Mondello 455. It has aluminum heads so the socket size of the current plug is 5/8" as opposed to the
stock 13/16". The plugs currently installed are Accel 763. Has anybody got that set up that would let me know what spark plugs
they're running please.

Thank you

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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Re: Spark Plugs for Mondello 455 with Aluminum head [message #276339 is a reply to message #276312]

Mon, 20 April 2015 21:20

Larry

Messages: 2875
Registered: January 2004
Location: Menomonie, WI

Karma: 10

Senior Member

The late great Bob Drews had aluminum heads on his 455. Now owned by Kim and Keith Weeks. Maybe contact Keith and Kim and ask what plug is now in those heads. JWID

Larry

78 Royale w/500 Caddy
Menomonie, WI.

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Re: [GMCnet] Spark Plugs for Aluminum head [message #276346 is a reply to message #276316]

Mon, 20 April 2015 22:38

Jim Galbavy

Messages: 1443
Registered: August 2007

Karma: 7

Senior Member

I agree with Rob. If it's a Mondello built motor, I would call the Mondello
shop in Crossville, TN.

jim galbavy
'73 x-CL ANNIE
Lake Mary, FL

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Re: [GMCnet] Spark Plugs for Aluminum head [message #276352 is a reply to message #276316]

Tue, 21 April 2015 05:58

Mr ERFisher

Messages: 7117
Registered: August 2005

Karma: 2

Senior Member

phew, i think in am back

sorry it took so long to answer
my mondello has stock heads
i use jr's guide for plugs
http://gmcmotorhome.info/engine.html#Spark_Plugs

i also would call mondello, it is not the same company as when Mr. olds,
was there, but they should be able to answer your questions.

erf

On Mon, Apr 20, 2015 at 2:58 PM, Robert Mueller
wrote:

> G'day,
>
> Call Mondello.
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: socalpaddy@gmail.com
>
> Hi all,
>
> I just picked up a '77 with a Mondello 455. It has aluminum heads so the
> socket size of the current plug is 5/8" as opposed to the
> stock 13/16". The plugs currently installed are Accel 763. Has anybody got
> that set up that would let me know what spark plugs
> they're running please.
>
> Thank you
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>

--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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