Home » Public Forums » GMCnet » LS swap into GMC motorhome (LS swap into GMC motorhome)
| LS swap into GMC motorhome [message #346593] |
Sun, 18 August 2019 16:28  |
steveofthenw
Messages: 1
Registered: August 2019
Karma: 0
|
Junior Member |
|
|
|
Has anyone ever swapped an LS motor (any LS motor) into a GMC motorhome? I already know about the Allison transmission upgrade. I'm toying with a notion...
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346595 is a reply to message #346593] |
Sun, 18 August 2019 16:41  |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
|
Senior Member |
|
|
Think about this. A drive shaft, 1 1/4" in diameter, going in one side of
the oil pan, and out the other. Then, think about the crankshaft, rods, and
oil pump. Clear those hurdles, and anything is possible given enough
determination and money.
Jim Hupy
Salem, Oregon
On Sun, Aug 18, 2019, 2:29 PM steven47--- via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Has anyone ever swapped an LS motor (any LS motor) into a GMC motorhome? I
> already know about the Allison transmission upgrade. I'm toying with a
> notion...
>
> _______________________________________________
> 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
|
|
|
|
|
|
| Re: LS swap into GMC motorhome [message #346597 is a reply to message #346593] |
Sun, 18 August 2019 17:58 |
6cuda6
Messages: 975
Registered: June 2019
Karma: -6
|
Senior Member |
|
|
steveofthenw wrote on Sun, 18 August 2019 17:28Has anyone ever swapped an LS motor (any LS motor) into a GMC motorhome? I already know about the Allison transmission upgrade. I'm toying with a notion...
Do tell about this Allison upgrade please.
Rich Mondor,
Brockville, ON
77 Hughes 2600
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346598 is a reply to message #346596] |
Sun, 18 August 2019 17:57 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
|
Senior Member |
|
|
Steve,
It just takes time to figure how to lay the tube inthe pan and tig weld the
pan.
I have advised some on how to do it.
An Allison tras is an Allison Torque converter.
where all the vains are brazed on ad the ccenter bearing is a roller beari,
not a bronze bushing.
Just like people do not know the diferance between a Japanese and Chinese.
They both have nese.
On Sun, Aug 18, 2019 at 3:32 PM Adolph Santorine via Gmclist <
gmclist@list.gmcnet.org> wrote:
> What’s the Allison transmission upgrade?
>
> Dolph Santorine
>
> DE AD0LF
>
> Wheeling, West Virginia
>
> 1977 ex-Palm Beach TZE167V100820
> Howell EFI/EBL , Reaction Arms, Manny Transmission
>
>
>> On Aug 18, 2019, at 5:28 PM, steven47--- via Gmclist gmclist@list.gmcnet.org> wrote:
>>
>> Has anyone ever swapped an LS motor (any LS motor) into a GMC motorhome?
> I already know about the Allison transmission upgrade. I'm toying with a
>> notion...
>>
>> _______________________________________________
>> 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
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346600 is a reply to message #346597] |
Sun, 18 August 2019 18:09 |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
|
Senior Member |
|
|
If I understand what Jim K was saying it’s only the torque converter, meaning it’s still a three speed TH-425.
That it, Jim?
No comment on the ‘nese ——
Dolph Santorine
DE AD0LF
Wheeling, West Virginia
1977 ex-Palm Beach TZE167V100820
Howell EFI/EBL , Reaction Arms, Manny Transmission
> On Aug 18, 2019, at 6:58 PM, tonka6cuda6--- via Gmclist wrote:
>
> steveofthenw wrote on Sun, 18 August 2019 17:28
>> Has anyone ever swapped an LS motor (any LS motor) into a GMC motorhome? I already know about the Allison transmission upgrade. I'm toying with a
>> notion...
>
> Do tell about this Allison upgrade please.
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
> _______________________________________________
> 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
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346601 is a reply to message #346600] |
Sun, 18 August 2019 18:21 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
|
Senior Member |
|
|
Well, if you want a 4-5 speed, it will happen.
Meanwhile lets get the LS planted in.
The gain of the 5 speed is not going to give you a big erection.
Ask Hal St Clair, I believe he put one in and used a transfer case to
accomplish that.
Hal is a very talented craftsman and mechanic so he does these things well.
If you cannot do it well, you'll be on the side of the road.
On Sun, Aug 18, 2019 at 4:10 PM Adolph Santorine via Gmclist <
gmclist@list.gmcnet.org> wrote:
> If I understand what Jim K was saying it’s only the torque converter,
> meaning it’s still a three speed TH-425.
>
> That it, Jim?
>
> No comment on the ‘nese ——
>
> Dolph Santorine
>
> DE AD0LF
>
> Wheeling, West Virginia
>
> 1977 ex-Palm Beach TZE167V100820
> Howell EFI/EBL , Reaction Arms, Manny Transmission
>
>
>> On Aug 18, 2019, at 6:58 PM, tonka6cuda6--- via Gmclist gmclist@list.gmcnet.org> wrote:
>>
>> steveofthenw wrote on Sun, 18 August 2019 17:28
>>> Has anyone ever swapped an LS motor (any LS motor) into a GMC
> motorhome? I already know about the Allison transmission upgrade. I'm
> toying with a
>>> notion...
>>
>> Do tell about this Allison upgrade please.
>> --
>> Rich Mondor,
>>
>> Brockville, ON
>>
>> 77 Hughes 2600
>>
>> _______________________________________________
>> 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
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346602 is a reply to message #346600] |
Sun, 18 August 2019 18:33 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
|
Senior Member |
|
|
On Sun, Aug 18, 2019 at 4:10 PM Adolph Santorine via Gmclist <
gmclist@list.gmcnet.org> wrote:
> If I understand what Jim K was saying it’s only the torque converter,
> meaning it’s still a three speed TH-425.
>
> That it, Jim?
>
> No comment on the ‘nese ——
>
> Dolph Santorine
>
> DE AD0LF
>
> Wheeling, West Virginia
>
> 1977 ex-Palm Beach TZE167V100820
> Howell EFI/EBL , Reaction Arms, Manny Transmission
>
>
>> On Aug 18, 2019, at 6:58 PM, tonka6cuda6--- via Gmclist gmclist@list.gmcnet.org> wrote:
>>
>> steveofthenw wrote on Sun, 18 August 2019 17:28
>>> Has anyone ever swapped an LS motor (any LS motor) into a GMC
> motorhome? I already know about the Allison transmission upgrade. I'm
> toying with a
>>> notion...
>>
>> Do tell about this Allison upgrade please.
>> --
>> Rich Mondor,
>>
>> Brockville, ON
>>
>> 77 Hughes 2600
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> ______Allison transmission is in a class by itself as it is for Diesel rigs
_________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346608 is a reply to message #346602] |
Mon, 19 August 2019 08:24 |
GMC.LES
Messages: 505
Registered: April 2014
Karma: -2
|
Senior Member |
|
|
Steven(if that is your name),
1st, it is always nice to know who we are conversing with, and from where you are hailing us. For that reason, we kindly suggest that you set up a signature that provides us with a name, location, and the year and model of your coach. It simply helps us relate better to you and your needs.
2nd, regarding your LS swap questions. The subject has been discussed previously by members who do not visit as often as they used to. You might try searching previous messages on the forum.
LS swaps were also discussed in several of the GMC motorhome related facebook pages. There are also photos showing some prototyping and the headaches encountered. So far, nobody has successfully transplanted an LS due to the complex issues that require major alteration. The bottom line is that with enough money, anything is possible.
Les Burt
Montreal
'75 Eleganza 26'
> On Aug 18, 2019, at 7:33 PM, Jim Kanomata via Gmclist wrote:
>
> On Sun, Aug 18, 2019 at 4:10 PM Adolph Santorine via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> If I understand what Jim K was saying it’s only the torque converter,
>> meaning it’s still a three speed TH-425.
>>
>> That it, Jim?
>>
>> No comment on the ‘nese ——
>>
>> Dolph Santorine
>>
>> DE AD0LF
>>
>> Wheeling, West Virginia
>>
>> 1977 ex-Palm Beach TZE167V100820
>> Howell EFI/EBL , Reaction Arms, Manny Transmission
>>
>>
>>> On Aug 18, 2019, at 6:58 PM, tonka6cuda6--- via Gmclist > gmclist@list.gmcnet.org> wrote:
>>>
>>> steveofthenw wrote on Sun, 18 August 2019 17:28
>>>> Has anyone ever swapped an LS motor (any LS motor) into a GMC
>> motorhome? I already know about the Allison transmission upgrade. I'm
>> toying with a
>>>> notion...
>>>
>>> Do tell about this Allison upgrade please.
>>> --
>>> Rich Mondor,
>>>
>>> Brockville, ON
>>>
>>> 77 Hughes 2600
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>>
>> ______Allison transmission is in a class by itself as it is for Diesel rigs
>
>
> _________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk@appliedairfilters.com
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
> 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
|
|
|
|
| Re: LS swap into GMC motorhome [message #346609 is a reply to message #346593] |
Mon, 19 August 2019 09:01 |
 |
Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
|
Senior Member |
|
|
steveofthenw wrote on Sun, 18 August 2019 17:28Has anyone ever swapped an LS motor (any LS motor) into a GMC motorhome? I already know about the Allison transmission upgrade. I'm toying with a notion...
Steve(?),
Welcome to the group, family, cult, asylum.....
You are new here and that is not a problem at all. As was suggested, please create a sigfile. As it looks like you are working the forum, go to <Control Panel/Account Settings> and scroll down. Please fill in: A real name because we like to know who you are when we meet, A bit about your coach (model, year and major mods) and a geographic better than NW. This is an amazing group and you will get real assistance here and good information, but we have to know what we are dealing with from the get-go....
I am not sure what you hope to gain with the LS motor. The Olds engines are know for both their longevity and reliability. In our use, those are two really good things. If you try to cram in any engine not designed to go with the TH425, you are in for a major program. Given the NW in your current alias (that can be changed easily by the way), you are not close to Michigan. If you really want to pursue this, you really need to meet Dave Lenzi. He has done a number of 8.1 installations. But, you should understand the this man is a true Grand Wizard of metal work. He does make oil pans with a pass for the right drive axle. It misses the crank throws by about 45mil (Not mm) on each side. He also modifies the RFB (Rear Face of Block) so it can bolt to a TH425.
Do you already have a coach? If so, tell us more.
In any case, you should look up the Western States rally that will be in October and plan to get there. Coach or no, it you have interest at all you can learn more standing in one place (try to keep you mouth closed, because it is easy to be overwhelmed), than you will learn by trying to read every thing that you can find.
In any case, Welcome.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
|
|
|
|
| Re: LS swap into GMC motorhome [message #346622 is a reply to message #346593] |
Mon, 19 August 2019 14:52 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
|
Senior Member |
|
|
I'm not sure what an LS conversion would accomplish. Granted, it is a more modern engine with a modern management system, but I don't think it would work well in our application.
I have a Chevy 2500HD with a 6.0 LS in it. The truck is empty most of the time and I would guess weighs in the neighborhood of 6500 lbs and while it is a hot rod, it still only gets about 12 miles per gallon. Put that engine in a 12,000 lb vehicle with 30% more frontal surface area and it will probably get the same, or worse mileage as a 455 olds.
There IS a version of the LS that is used in a four wheel drive Saab version of the Trail Blazer, that has a tunnel through the oil pan for an axle shaft, that might bear some looking into if someone REALLY wanted to do this.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346646 is a reply to message #346622] |
Tue, 20 August 2019 12:58 |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
|
Senior Member |
|
|
I would be more interested in a 6 speed transmission than the 6.0
We just traded our company 3500 that had the 6.0 for a diesel because we needed more grunt.
Just say’in.
Dolph
DE AD0LF
Wheeling, West Virginia
1977 26’ ex-PalmBeach
Howell EFI & EBL, Reaction Arms, Manny Transmission
“The Aluminum and Fiberglass Mistress"
> On Aug 19, 2019, at 3:52 PM, Carl Stouffer via Gmclist wrote:
>
> I'm not sure what an LS conversion would accomplish. Granted, it is a more modern engine with a modern management system, but I don't think it would
> work well in our application.
>
> I have a Chevy 2500HD with a 6.0 LS in it. The truck is empty most of the time and I would guess weighs in the neighborhood of 6500 lbs and while it
> is a hot rod, it still only gets about 12 miles per gallon. Put that engine in a 12,000 lb vehicle with 30% more frontal surface area and it will
> probably get the same, or worse mileage as a 455 olds.
>
> There IS a version of the LS that is used in a four wheel drive Saab version of the Trail Blazer, that has a tunnel through the oil pan for an axle
> shaft, that might bear some looking into if someone REALLY wanted to do this.
> --
> Carl Stouffer
> '75 ex Palm Beach
> Tucson, AZ.
> Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
> Solar battery charging. GMCSJ and GMCMI member
>
> _______________________________________________
> 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
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346648 is a reply to message #346646] |
Tue, 20 August 2019 13:18 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
|
Senior Member |
|
|
My first engine swap was in a 1938 Olds. Pulled out the flathead 6, and put
in a 303 Olds Rocket. Went well, but the stock brakes, drive shaft,
differential, didn't like it much.
Second was a backwards swap. Had a 1946 Ford Deluxe 4 door with a 1958
Chrysler Hemi in it. Locked spider gears, Ford 3 speed truck transmission.
Pulled out the Hemi and the locked rear end, and Built a full race Ford
flathead for it. Much better.
Third was a 1951 Chevrolet. Pulled the 216 in-line 6, and replaced it
with an Olds 324 v-8 and a B&M Hydro-stik 4 speed automatic, along with all
Pontiac running gear.
So, I am not a stranger to engine swaps, but, experience has taught me
quite a lot about them. Proceed with caution is the best advice I can give.
Some of them don't turn out well.
Jim Hupy
Salem, Or
On Tue, Aug 20, 2019, 10:59 AM Dolph Santorine via Gmclist <
gmclist@list.gmcnet.org> wrote:
> I would be more interested in a 6 speed transmission than the 6.0
>
> We just traded our company 3500 that had the 6.0 for a diesel because we
> needed more grunt.
>
> Just say’in.
>
> Dolph
>
> DE AD0LF
>
> Wheeling, West Virginia
>
> 1977 26’ ex-PalmBeach
> Howell EFI & EBL, Reaction Arms, Manny Transmission
>
> “The Aluminum and Fiberglass Mistress"
>
>> On Aug 19, 2019, at 3:52 PM, Carl Stouffer via Gmclist gmclist@list.gmcnet.org> wrote:
>>
>> I'm not sure what an LS conversion would accomplish. Granted, it is a
> more modern engine with a modern management system, but I don't think it
> would
>> work well in our application.
>>
>> I have a Chevy 2500HD with a 6.0 LS in it. The truck is empty most of
> the time and I would guess weighs in the neighborhood of 6500 lbs and while
> it
>> is a hot rod, it still only gets about 12 miles per gallon. Put that
> engine in a 12,000 lb vehicle with 30% more frontal surface area and it will
>> probably get the same, or worse mileage as a 455 olds.
>>
>> There IS a version of the LS that is used in a four wheel drive Saab
> version of the Trail Blazer, that has a tunnel through the oil pan for an
> axle
>> shaft, that might bear some looking into if someone REALLY wanted to do
> this.
>> --
>> Carl Stouffer
>> '75 ex Palm Beach
>> Tucson, AZ.
>> Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive,
> Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American
> Eagles,
>> Solar battery charging. GMCSJ and GMCMI member
>>
>> _______________________________________________
>> 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
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346651 is a reply to message #346646] |
Tue, 20 August 2019 14:38 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
|
Senior Member |
|
|
Had an 08 3/4 ton suburban with the 6.0. Hated the darn thing. Horrible
fuel economy and constant trans shifts. Super annoying.
Sully
Bellevue wa
On Tue, Aug 20, 2019 at 10:59 AM Dolph Santorine via Gmclist <
gmclist@list.gmcnet.org> wrote:
> I would be more interested in a 6 speed transmission than the 6.0
>
> We just traded our company 3500 that had the 6.0 for a diesel because we
> needed more grunt.
>
> Just say’in.
>
> Dolph
>
> DE AD0LF
>
> Wheeling, West Virginia
>
> 1977 26’ ex-PalmBeach
> Howell EFI & EBL, Reaction Arms, Manny Transmission
>
> “The Aluminum and Fiberglass Mistress"
>
>> On Aug 19, 2019, at 3:52 PM, Carl Stouffer via Gmclist gmclist@list.gmcnet.org> wrote:
>>
>> I'm not sure what an LS conversion would accomplish. Granted, it is a
> more modern engine with a modern management system, but I don't think it
> would
>> work well in our application.
>>
>> I have a Chevy 2500HD with a 6.0 LS in it. The truck is empty most of
> the time and I would guess weighs in the neighborhood of 6500 lbs and while
> it
>> is a hot rod, it still only gets about 12 miles per gallon. Put that
> engine in a 12,000 lb vehicle with 30% more frontal surface area and it will
>> probably get the same, or worse mileage as a 455 olds.
>>
>> There IS a version of the LS that is used in a four wheel drive Saab
> version of the Trail Blazer, that has a tunnel through the oil pan for an
> axle
>> shaft, that might bear some looking into if someone REALLY wanted to do
> this.
>> --
>> Carl Stouffer
>> '75 ex Palm Beach
>> Tucson, AZ.
>> Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive,
> Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American
> Eagles,
>> Solar battery charging. GMCSJ and GMCMI member
>>
>> _______________________________________________
>> 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
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346654 is a reply to message #346648] |
Tue, 20 August 2019 15:46 |
6cuda6
Messages: 975
Registered: June 2019
Karma: -6
|
Senior Member |
|
|
I think a swap would be cool to do but like the others ive been around the block a few times building and swapping things.
If i was looking to throw "the bucks" at this motor set up id be looking at a pro-charger like a Paxton....rebuild the motor specifically for it and hope like heck the drivetrain can take 500 or 600hp.
The majority of the time its always the same...make power, break parts...fix said broken part with something stronger then fix the next broken part etc till everything has been modified and you are no were near the place you started.
Moral of the story....do it all or do nothing but its sure damn fun to try.
Rich Mondor,
Brockville, ON
77 Hughes 2600
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346655 is a reply to message #346654] |
Tue, 20 August 2019 16:19 |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
|
Senior Member |
|
|
I think the biggest thing I heard from the retired HydraMatic folks at the Great Lakers rally, is how they went to stamped parts from cast and machined.
We had a lot more headroom when we were dragging 5 to 6,000 lb cars around.
Dolph
DE AD0LF
Wheeling, West Virginia
1977 26’ ex-PalmBeach
Howell EFI & EBL, Reaction Arms, Manny Transmission
“The Aluminum and Fiberglass Mistress"
> On Aug 20, 2019, at 4:46 PM, tonka6cuda6--- via Gmclist wrote:
>
> I think a swap would be cool to do but like the others ive been around the block a few times building and swapping things.
>
> If i was looking to throw "the bucks" at this motor set up id be looking at a pro-charger like a Paxton....rebuild the motor specifically for it and
> hope like heck the drivetrain can take 500 or 600hp.
>
> The majority of the time its always the same...make power, break parts...fix said broken part with something stronger then fix the next broken part
> etc till everything has been modified and you are no were near the place you started.
>
> Moral of the story....do it all or do nothing but its sure damn fun to try.
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
> _______________________________________________
> 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
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346656 is a reply to message #346654] |
Tue, 20 August 2019 16:38 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
|
Senior Member |
|
|
"make power, break parts...fix said broken part with something stronger then fix the next broken part etc."
Not a good strategy for a motorhome. Unless you have REALLY good towing insurance. 
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
|
|
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346660 is a reply to message #346657] |
Tue, 20 August 2019 17:27 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
|
Senior Member |
|
|
My old B&M Hydro-stik was based on the pre-1953 Hydramatic Transmission.
Cast iron case, and planetary gearset INSIDE the torque converter. It had
4 forward speeds. 100% reduction in 1st, 75% reduction in 2nd, 50%
reduction in 3rd, and 1-1 in top. B&M said that it was good for 1000
Flywheel horsepower. I never broke it, but I sure did break lots of stuff
downstream from it. When it shifted gears, you could look on the pavement
where the rubber was laid down and tell where the shift points were. No
breaks in the rubber, just the density of the patch changed. It would jar
the fillings out of your teeth on wide open throttle shifts.
Just what you DON'T WANT in a family motorhome.
Jim Hupy
Salem, Oregon
On Tue, Aug 20, 2019, 3:11 PM D C _Mac_ Macdonald via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Monster Transmissions builds rigs for the GMC motorhome rated above 10 k
> pounds at least!
> Talk to Jim Bounds at COOP about their rebuilds.
>
> D C "Mac" Macdonald
> Amateur Radio K2GKK
> Since 30 November '53
> USAF and FAA, Retired
> Member GMCMI & Classics
> Oklahoma City, OK
> "The Money Pit"
> TZE166V101966
>
>
> ________________________________
> From: Gmclist on behalf of
> tonka6cuda6--- via Gmclist
> Sent: Tuesday, August 20, 2019 15:46
> To: gmclist@list.gmcnet.org
> Cc: tonka6cuda6@hotmail.com
> Subject: Re: [GMCnet] LS swap into GMC motorhome
>
> I think a swap would be cool to do but like the others ive been around the
> block a few times building and swapping things.
>
> If i was looking to throw "the bucks" at this motor set up id be looking
> at a pro-charger like a Paxton....rebuild the motor specifically for it and
> hope like heck the drivetrain can take 500 or 600hp.
>
> The majority of the time its always the same...make power, break
> parts...fix said broken part with something stronger then fix the next
> broken part
> etc till everything has been modified and you are no were near the place
> you started.
>
> Moral of the story....do it all or do nothing but its sure damn fun to try.
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
> _______________________________________________
> 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
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
|
|
|
|
| Re: [GMCnet] LS swap into GMC motorhome [message #346663 is a reply to message #346654] |
Tue, 20 August 2019 17:43 |
Jim Miller
Messages: 501
Registered: March 2008
Karma: 10
|
Senior Member |
|
|
On Aug 20, 2019, at 4:46 PM, tonka6cuda6--- via Gmclist wrote:
> If i was looking to throw "the bucks" at this motor set up id be looking at a pro-charger like a Paxton....rebuild the motor specifically for it and hope like heck the drivetrain can take 500 or 600hp.
Are our stock 455s and 403s lacking on power or endurance in some way? I have two coaches with one of each engine and they have always done whatever I’ve asked them to do. I want maximum reliability from them - not maximum horsepower. The engine and drivetrain are already working at a marine/industrial duty cycle when going down the Interstate and I sure don’t want to ask the driveline to eat anything additional by putting in some monster engine.
FWIW, I already know the answer to my question posed above but I am curious about peoples' motivation for going through a bunch of machinations to graft in high HP/high torque engines and drivelines when the existing ones seem to work fine.
Jim Miller
1977 Eleganza
1977 Royale
Hamilton, OH
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Jim Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
|
|
|
|
Goto Forum:
Current Time: Wed Sep 18 18:19:17 CDT 2024
Total time taken to generate the page: 0.01512 seconds
|
GMCforum
Search
Help
Register
Login
Home
