Looking for a Detroit 8V71 with Allison Automatic Transmission

jacc · February 26, 2015, 09:31:33 PM

I blew the engine (8V71) on my 1975 MC8 Bus Conversion. Am looking for a rebuilt one or a good running one to replace it. The bus is located in Bakersfield CA. Hopefully I can find one in that area, but I am facing a deadline and am willing to have it shipped. Would appreciate any info on where I can find one from a source I can trust, as I live a long ways from Bakersfield. We have used our bus for 16 years. It is a great conversion and in beautiful shape after all these years. We want to keep it. I am an evangelist and live in it during revivals in various churches (www.revelation-now.com). Not many problems over that time. Time is of the essence since we have a revival booked in the Rapid City SD area in April. Would definitely any help.
Thank you
Jac

luvrbus · February 27, 2015, 04:50:48 AM

Delaney and Ahlf is your best bet,Fairchild closed his shop there

Brett G · February 27, 2015, 05:52:35 AM

http://minneapolis.craigslist.org/hnp/pts/4889103631.html

https://www.youtube.com/watch?v=Wo7HnJNRhdM

Oonrahnjay · February 27, 2015, 06:06:02 AM

If you travel a lot, have you asked yourself whether an 8v92ta would be a better swap? It would be a little more fuel hungry but it would give you a lot better performance, particularly climbing hills, etc. You might also think about a "World" transmission (if you're going to change), with an easy add-on throttle modulator, you could go to an Allison B400. 6 speeds and lock up to get your fuel mileage back.

eagle19952 · February 27, 2015, 07:22:25 AM

Quote from: Oonrahnjay on February 27, 2015, 06:06:02 AM
If you travel a lot, have you asked yourself whether an 8v92ta would be a better swap? It would be a little more fuel hungry but it would give you a lot better performance, particularly climbing hills, etc. You might also think about a "World" transmission (if you're going to change), with an easy add-on throttle modulator, you could go to an Allison B400. 6 speeds and lock up to get your fuel mileage back.

it would also complicate your cooling ... in most cases...

Oonrahnjay · February 27, 2015, 07:49:38 AM

Quote from: eagle19952 on February 27, 2015, 07:22:25 AM
it would also complicate your cooling ... in most cases...

And electrical stuff, and shifter, etc. -- but I'd do it, in spite of the fact that it would take a good bit of modifications.

luvrbus · February 27, 2015, 09:51:36 AM

He shouldn't have much trouble finding a 6V92TA on a MCI cradle they have about the same heat rejection as the 8V71 N/A with more power and better fuel mileage than a 8v71.The 8v92 is a major ordeal to stuff into a MCI 8

eagle19952 · February 27, 2015, 10:13:02 AM

Quote from: luvrbus on February 27, 2015, 09:51:36 AM
He shouldn't have much trouble finding a 6V92TA on a MCI cradle they have about the same heat rejection as the 8V71 N/A with more power and better fuel mileage than a 8v71.The 8v92 is a major ordeal to stuff into a MCI 8

Danr · February 27, 2015, 12:16:48 PM

Quote from: luvrbus on February 27, 2015, 09:51:36 AM
He shouldn't have much trouble finding a 6V92TA on a MCI cradle they have about the same heat rejection as the 8V71 N/A with more power and better fuel mileage than a 8v71.The 8v92 is a major ordeal to stuff into a MCI 8

I have a 6v92TA on a MCI cradle still in a mc8. for $3500.00 he can have the hole bus. it runs great. And I have all manuals with it .

Danr

cdroggen45@hotmail.com I am in Pahrump, NV

jacc · February 27, 2015, 06:46:20 PM

Thanks for all the input. Very helpful. I have a couple of possible options now. But appreciate any more thoughts.

Lin · February 28, 2015, 12:12:49 PM

Another option would be a turbo 8v71 or putting a smoke turbo on a plain one before install.