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Re: [GMCnet] new engines for the GMCs [message #316590 is a reply to message #316589] Tue, 25 April 2017 09:41 Go to previous messageGo to previous message
Dolph Santorine is currently offline  Dolph Santorine   United States
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma:
Senior Member
I understand where everyone is coming from regarding the engine, but I think what will kill the GMC Motorhome in the end is transmission parts availability.

I just completed a rebuild on a 1922 Overland. Pistons, rings, gaskets - all available, as they will likely be for the 455 or the 500 in half a century.

Transmission parts, not so much.

Dolph

DE AD0LF

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 Apr 25, 2017, at 10:33 AM, Mark Sawyer wrote:
>
> Mike, I'm sorry if I came off as saying you were not capable of doing the swap. That was not my intention. My point in listing all that stuff out
> was to illustrate the point that engine swaps are a lot of work... And that the 455 and Cad 500 really are good motors for our application. You are
> 100% right, at some point we will NEED a new engine option... I also agree with you that the LS motor is the best gas engine out there right now for
> the job. But good god, it's a lot of work to get it in there and working, then add all the ancillaries as well...
>
> But you are also correct in saying that the more options we have, the better off we will all be. I'll tell you, if I were going to do an LS swap on
> the GMC, and I needed to modify the interior anyway, I would probably look the possibility of using a 4L80 to get the extra gear and lockup
> converter.... I believe Hal's diesel setup uses a 4L80 or similar, and some sort of transfer case to get power back to the front...
>
> Hal, could you maybe describe how your setup works?
> --
> Mark S. '73 Painted Desert,
> Manny 1 Ton Front End,
> Howell Injection,
> Leigh Harrison 4bag and Rear Brakes,
> Fort Worth, TX
>
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