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Re: new engines for the GMCs [message #316692 is a reply to message #316311] Thu, 27 April 2017 11:22 Go to previous messageGo to previous message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma:
Senior Member
A run around the block with Bounds was to a degree noisy.... but I think the bulk of the noise could be shut up with some thought and more sound deadening. As to mileage, I don't think 18 is gonna happen in a GMC until you transplant a different transmission. If then. However, get 12 - 14 and your fuel costs are the same as the gas ones or a bit less.
Putting a different gasoline engine in a GMC using the THM-425 (with the exception of the Cadillac) seems to me an exercise in 'can I do it'. More power to those who do. But it does nothing for the coach in my uses.

--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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