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12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

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Old 11-03-2011, 10:05 PM
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Location: South of Owensboro
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Default Chevy/ cummins build

I have a 78 chevy k20 that I want a cummins in bad. Should I go with a 4bt or a 12v. I found a engine out of a 97, would it work it's a 12v. Need advise on easiest ways please, Chevys got an automatic 400 turbo tranny now. Thanks all.
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Old 11-04-2011, 12:22 PM
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Location: Lincoln, CA
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a 4bt would struggle to move a k20. 12v for sure. if your looking for the easiest route a 12v is a little easier install than a 24v. i wouldnt think twice about ditching the th400 behind the tranny. by the time you buy an adapter plate and everything to make it work it could get pricey. plus a 12v makes alot of torque not sure the th400 would hold up
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Old 11-04-2011, 10:06 PM
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Will a tranny ment for the 12v match the transfer case?
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Old 11-05-2011, 08:34 AM
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Join Date: Dec 2010
Location: Haines, Oregon
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Yes np205 I believe bolts right up. Its the same that the first gens have
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Old 11-08-2011, 01:56 PM
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Last month I went to some mud bogs in upstate VT... I met a guy there who had a 4bt in a short bed K10 and he said it was extremely under powered and he wishes he went with a 6 cyl cummins...
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