Home » Public Forums » GMCnet » Engine -- Original or Replacement? (455, engine, replacement engine)
| Engine -- Original or Replacement? [message #297951] |
Wed, 23 March 2016 23:28  |
Pryzl1
Messages: 100
Registered: November 2011
Location: Toledo, OH
Karma: 0
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Senior Member |
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Just asking:
Currently my '76 Eleganza is undergoing a 455 ci engine transplant. The question has been raised as to whether or not the engine being removed from the coach (approximately 115,000 miles on the odometer) is the original, factory installed engine. Are there any key indicators on the engine or elsewhere that would enable one to determine if the engine was factory installed or had been previously replaced?
As the fourth owner of this coach I have very few maintenance records and invoices from the previous owners.
John
1976 GMC Eleganza II - "The Never Ending Story"
Partial Restoration - a work in progress
455cc
NW Ohio
Member of the GMCMI, GMC Great Lakers Motorhome Club, GMCES and Dixielanders
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| Re: Engine -- Original or Replacement? [message #297952 is a reply to message #297951] |
Wed, 23 March 2016 23:55  |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Senior Member |
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When I bought my coach it was 11 years old and had 95000 miles on it . It had a bad exhaust valve on it so I pulled the heads , at this time I thought I might as well remove the engine and check the bearings to be sure all was good. It was a good move on my part as # 7&8 rod bearings were bad. I had a spare engine from a vista cruiser so I rebuilt it and installed it along with the mh lntake and pan. All these years I figured the engine I had removed was the original till last year when I discovered the casting number on the block had a factory replacement number on it rather then the number that would have been on it if it were the original?! So some time in the first 11 years of its life there was an engine change before I got it. From the stretch on the timing chain I would say it was replaced early in its life. When you pull your motor if the rod or main bearings aren't standard or if the bore isn't standard it has been rebuilt. Or if the casting number has a factory replacement number it isn't original
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] Engine -- Original or Replacement? [message #297966 is a reply to message #297951] |
Thu, 24 March 2016 11:15 |
Kingsley Coach
Messages: 2691
Registered: March 2009
Location: Nova Scotia Canada
Karma: -34
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Senior Member |
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John
This is a totally un-factual answer, but as 9th owner of ours(had for 19
years now), I'd guess it's original but that the mileage is at least
double of what the odometer says. Mileage will show up better when the
bearings are examined from the old heart!
Mike in NS
On Thu, Mar 24, 2016 at 1:28 AM, John Pryzbylek
wrote:
> Just asking:
>
> Currently my '76 Eleganza is undergoing a 455 ci engine transplant. The
> question has been raised as to whether or not the engine being removed from
> the coach (approximately 115,000 miles on the odometer) is the original,
> factory installed engine. Are there any key indicators on the engine or
> elsewhere that would enable one to determine if the engine was factory
> installed or had been previously replaced?
>
> As the fourth owner of this coach I have very few maintenance records and
> invoices from the previous owners.
> --
> John
> 1976 GMC Eleganza II - "The Never Ending Story"
> Partial Restoration - a work in progress
> 455cc
> NW Ohio
> Member of the GMCMI, GMC Great Lakers Motor Home Club and Dixielanders
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS
Life is too short to hold a grudge; slash some tires and call it even !
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| Re: [GMCnet] Engine -- Original or Replacement? [message #297985 is a reply to message #297984] |
Thu, 24 March 2016 17:53 |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
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Senior Member |
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Interesting
Was the Trailer Wiring Harness optional?
Dolph
DE N8JPC
Wheeling, West Virginia
1977 26’ ex-PalmBeach
1-Ton, Sullybilt Bags, Reaction Arms, 3.70 LSD, Manny Transmission, EV-6010
“The Aluminum and Fiberglass Mistress"
> On Mar 24, 2016, at 6:51 PM, Bill Bryant wrote:
>
> Pryzl1,
>
> The only way for sure I know of to determine if your engine is original to the coach is to have the order/build sheet with the engine number on it.
> See the attached, this is my coach and the numbers match.
> Bill
>
> http://www.gmcmhphotos.com/photos/miscellaneous-bryant-stuff/p59609-order-2fbuild-sheet-1.html
> --
> Bill Bryant
> 1976~PB
> 1914 Ford
> 1965 Corvette
> GMC MH History CD & GMC Showroom DVD
> Workprint DVD GMC development 11-70 to 3-71
> http://bdub.net/billbryant/
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: [GMCnet] Engine -- Original or Replacement? [message #298052 is a reply to message #297985] |
Fri, 25 March 2016 17:58 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Senior Member |
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John,
After pulling the engine there is a date stamp under the #1 spark plug
(water plug)
First number 3 (Olds) second number should be a 6 (year) third letter M
(Lansing ) the rest of the number are untraceable but pertained to type of
vehicle install in.
When I pulled my engine out of a 1976 PalmBeach I discovered that it had a
1972 block with G heads on it. G heads for the Tornado and 442 had bigger
intake valves (2.070") unknown to me at the time that I sold the block and
heads.
On Thu, Mar 24, 2016 at 4:53 PM, Dolph Santorine
wrote:
> Interesting
>
> Was the Trailer Wiring Harness optional?
>
>
> Dolph
>
> DE N8JPC
>
> Wheeling, West Virginia
>
> 1977 26’ ex-PalmBeach
> 1-Ton, Sullybilt Bags, Reaction Arms, 3.70 LSD, Manny Transmission, EV-6010
>
> “The Aluminum and Fiberglass Mistress"
>
>
>
>
>
>> On Mar 24, 2016, at 6:51 PM, Bill Bryant
> wrote:
>>
>> Pryzl1,
>>
>> The only way for sure I know of to determine if your engine is original
> to the coach is to have the order/build sheet with the engine number on it.
>> See the attached, this is my coach and the numbers match.
>> Bill
>>
>>
> http://www.gmcmhphotos.com/photos/miscellaneous-bryant-stuff/p59609-order-2fbuild-sheet-1.html
>> --
>> Bill Bryant
>> 1976~PB
>> 1914 Ford
>> 1965 Corvette
>> GMC MH History CD & GMC Showroom DVD
>> Workprint DVD GMC development 11-70 to 3-71
>> http://bdub.net/billbryant/
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: [GMCnet] Engine -- Original or Replacement? [message #298054 is a reply to message #298052] |
Fri, 25 March 2016 18:04 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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The actual serial number in an Olds block is on the oil filler pipe. It is
really hard to see. If you can find it, pm me and I will try to decipher it
for you.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Mar 25, 2016 3:59 PM, "Bruce Hart" wrote:
> John,
> After pulling the engine there is a date stamp under the #1 spark plug
> (water plug)
> First number 3 (Olds) second number should be a 6 (year) third letter M
> (Lansing ) the rest of the number are untraceable but pertained to type of
> vehicle install in.
>
> When I pulled my engine out of a 1976 PalmBeach I discovered that it had a
> 1972 block with G heads on it. G heads for the Tornado and 442 had bigger
> intake valves (2.070") unknown to me at the time that I sold the block and
> heads.
>
>
>
>
>
> On Thu, Mar 24, 2016 at 4:53 PM, Dolph Santorine
> wrote:
>
>> Interesting
>>
>> Was the Trailer Wiring Harness optional?
>>
>>
>> Dolph
>>
>> DE N8JPC
>>
>> Wheeling, West Virginia
>>
>> 1977 26’ ex-PalmBeach
>> 1-Ton, Sullybilt Bags, Reaction Arms, 3.70 LSD, Manny Transmission,
> EV-6010
>>
>> “The Aluminum and Fiberglass Mistress"
>>
>>
>>
>>
>>
>>> On Mar 24, 2016, at 6:51 PM, Bill Bryant
>> wrote:
>>>
>>> Pryzl1,
>>>
>>> The only way for sure I know of to determine if your engine is original
>> to the coach is to have the order/build sheet with the engine number on
> it.
>>> See the attached, this is my coach and the numbers match.
>>> Bill
>>>
>>>
>>
> http://www.gmcmhphotos.com/photos/miscellaneous-bryant-stuff/p59609-order-2fbuild-sheet-1.html
>>> --
>>> Bill Bryant
>>> 1976~PB
>>> 1914 Ford
>>> 1965 Corvette
>>> GMC MH History CD & GMC Showroom DVD
>>> Workprint DVD GMC development 11-70 to 3-71
>>> http://bdub.net/billbryant/
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
>
> --
> Bruce Hart
> 1976 Palm Beach
> Milliken, Co
> GMC=Got More Class
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
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| Re: Engine -- Original or Replacement? [message #298199 is a reply to message #297951] |
Sun, 27 March 2016 21:49 |
Pryzl1
Messages: 100
Registered: November 2011
Location: Toledo, OH
Karma: 0
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Senior Member |
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Thanks for all the inputs and PMs. Will be checking for the numbers tomorrow.
John
1976 GMC Eleganza II - "The Never Ending Story"
Partial Restoration - a work in progress
455cc
NW Ohio
Member of the GMCMI, GMC Great Lakers Motorhome Club, GMCES and Dixielanders
|
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| Re: Engine -- Original or Replacement? [message #298213 is a reply to message #297951] |
Mon, 28 March 2016 08:37 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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GM didn't follow the Mopar style of stamping the series number of the VIN on the block skirt on our motorhomes. Which has led to a certain number of counterfeit 'numbers matching' classics on the market.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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