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Old Mar 8, 2007 | 10:19 PM
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yor1940's Avatar
yor1940
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Ford 700B

Hi All;

Looking at a 6.6L Turbo in a 1991 Ford 700B, Allison MT643- can anyone tell me the hp on this engine? and with this Transmission how would it do on the highway - will be pulling a 30' travel trailer (1988) 6,400 lbs. has 148,000 mi.

has great maintance records!!

yor
 
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Old Mar 8, 2007 | 10:29 PM
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Winger235
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I have not run across many of those basically a school bus engine. 170-180 horse class I believe emission standards killed that diesel. The MT643 is a solid medium duty Allison usually found in school buses 6 wheel dumps straight trucks etc. A good 4 spd auto.
 
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Old Mar 8, 2007 | 10:44 PM
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yor1940
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Winger;
Thanks for the answer, Yes a shorty bus (27') this is the length we are looking
for, you think I should look for a differant engine? appricate any information

Thanks yor
 
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Old Mar 8, 2007 | 10:50 PM
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Winger235
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Honest answer DT466 same trans MT643 or T444E same trans. 7.8L is a good diesel same trans. The 6.6L I did not have much experience with.
 
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Old Mar 8, 2007 | 11:08 PM
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Thanks Winger;
 
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