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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

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 ... JOIN NOW TO REMOVE TRACER

Chevy/ cummins build

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Old 11-03-2011, 11:05 PM


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.

farmin01's Sig:2001 2500 single cab, ts MVP/ tst pm3, 95 fass fuel system, silencer ring mia, homemade air box, 4in straight pipe, transtar tranny ( waste of $ ). ,,,Work truck,,, has rust, dings, and leaks but I love it.
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Old 11-04-2011, 01:22 PM
tltruckparts's Avatar
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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

tltruckparts's Sig:1995 Chevy K2500, 1993 Cummins P Pumped 12 valve Turbo Diesel IC, Getrag 5 speed w/ southbend clutch, NP205 Transfercase, SAS w/ GM Dana 60 front. custom fabbed coil suspension, AAM 11.5 rear, BFG MT 35's. SDX 5x14 injectors, PhatShaft 62, airdog II 165, Autometer EGT, Boost, & Fuel Pressure, hydraulic steering. and a few moore goodies
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Old 11-04-2011, 11:06 PM



Will a tranny ment for the 12v match the transfer case?
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Old 11-05-2011, 09:34 AM
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Yes np205 I believe bolts right up. Its the same that the first gens have

5.9sledhead's Sig:2004 ram 2500 flatbed nv5600 stock, 2012 3500 4 door longbox 6 speed...stock till christmas, Sold 05 6 speed 600hp. Sold 95 twin turbo 5spd.
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Old 11-08-2011, 02:56 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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