B model build or C model - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 24 (permalink) Old 10-16-2015, 02:13 AM Thread Starter
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B model build or C model

hey guys, been looking at a truck with a bad C model in it, guy thinks its a bad head gasket,

now my question is, with it already opened up i would plan on at least doing an inframe on it,
some guys have been talking about the 580+genset steel build which i like the thought of,

Or

i know where there is a 7fb B model that runs and i could drop in, at this point all im after is bigger HP

(trying for north of 600-650)

i would think the genset at the 580 parts from cat would be the better route,


whats all of your thoughts and pro's an cons.


thanks
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post #2 of 24 (permalink) Old 10-16-2015, 02:43 AM
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well unless you have a C crank and 5888 C pump id just build it to a 7fb with 3421nozzles and 177148 borg warner turbo or a stage one pdi. personally im a C type of guy and the steel 14.5:1's with 8785 nozzles and late b early C cam is the way to roll. They dont make a steel top to fit the narrow b crank and narrow taper smaller pin connecting rod.

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post #3 of 24 (permalink) Old 10-16-2015, 02:44 AM Thread Starter
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Truck has a c model in it at current time, bad head gasket
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post #4 of 24 (permalink) Old 10-16-2015, 03:00 AM
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what serial #?

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post #5 of 24 (permalink) Old 10-16-2015, 03:01 AM Thread Starter
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Will have get it, it is the mechanical pump thi
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post #6 of 24 (permalink) Old 10-16-2015, 03:14 AM
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What year truck is it in?

Larry
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post #7 of 24 (permalink) Old 10-16-2015, 03:14 AM Thread Starter
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what serial #?
Cyl packs the 10r-1436?
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post #8 of 24 (permalink) Old 10-16-2015, 03:18 AM
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the c with steel crowns installed and and other mentioned parts will make more power, live longer, run cleaner and get better mileage. The B is stronger in a quick pull situation and the Will outpull the C in a long hill unless you burn the B up tryn.

Larry
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post #9 of 24 (permalink) Old 10-16-2015, 05:01 AM
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There is a steel top piston that fits the narrow bearing small wrist pin rod.
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Cody.

79 KW W900A 3406B, Garrett GT55 turbo, RTO12513,
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79 KW K100C 400BC1, Holset HT4B hybrid, custom
injectors, RTO12513, 4.33 eaton DS380s

00 Freightliner Classic XL C15
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post #10 of 24 (permalink) Old 10-16-2015, 07:35 AM
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There is a steel top piston that fits the narrow bearing small wrist pin rod.
The ones for 3408' that use a shorter rod right? Has anyone actually used them? Seems like to me that their would be some timing/trailing smoke issues created by the change in the dwell from the shorter rods?? A shorter rod will speed up piston and it will spend less time at TDC and BDC. Got any part# for s
the Pack?

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