If you get an extremely good deal on an earlier engine it may be cost effective to convert it to a P7100 pump if you like. These engines are possibly the most desirable 12-Valves because power upgrades are easily accomplished with fuel plate adjustments etc. With this pump, one can easily add 15-95HP by installing a fuel plate. #2001 dodge 2500 cummins engine serial number location manualThese engines have the Bosch P7100 inline manual fuel pump which produces 160-215HP stock. The 1994 - 1998 Engines offer good power and torque, as well as good fuel economy. "New" Style Fan support bracket and water neck" "Old" Style Fan support bracket and water neck The older style fan hub does not work well if you plan on running a tachometer. We have been told from a few customers that it works ok in the 2003 - 2007 6.0L diesel shroud. It does not work so well in the 1999 and newer trucks as the fan will not fit under the radiator shroud, and the shroud cannot be raised as easily as the older trucks. These fan supports work ok in the 1969 - 1997 trucks, although the fan is too high for the stock fan shroud it is at least centered. In addition to these differences, some of the early engines have a different fan support that is higher and more centered with the engine. Sometimes the 1993 pumps and brackets are the same as the more conversion friendly 1994 - 1998 versions pictured below. The vacuum pump and power steering mounting bracket will interchange. The A/C compressor can also be an issue, as they are usually longer than the 1994 - 1998 versions, and may use a different mounting bracket. If you are planning to use an electronically controlled transmission, you should know that throttle position sensors are hard to come by for these, however, there are alternative sensor options available so it can be solved without much of a problem. The 1993 and earlier engines may have a diaphragm style vacuum pump, which does not work as well as the later style pump in the conversion. It's possible to add 40-60 HP with an inexpensive fuel pin so intercooling can be quite desirable. The non-intercooled engines can be intercooled if desired it is highly recommended if you plan to turn the power up any to control exhaust temperatures. These use the Bosch VE rotary pump which can be adjusted to achieve a little more horse power. The 1989 - 1993 engines are readily available, inexpensive, get the best fuel economy stock, and have decent torque. The simplicity of the 12-Valve engine makes it the easiest to install, maintain, and most dependable. THE 12-VALVE: All 12-Valves are non-electronic injection pump engines and DO NOT require any electronics from the truck to run. Click here to read more.Ĭlick on these links to see related technical or comparison data: Industrial/Commercial engines are not as conversion friendly as the Dodge versions. Some preferences to consider are fuel economy, horse power and torque, mechanical or electronically controlled fuel system, noise level, ease of installation, governed RPM limit, and purchase price. Check with your local emissions inspector for specific laws that apply to your project. For states with emissions inspections, the general rule is to go with an engine of the same year as, or newer than the implant truck. The engines are universal as far as transmission mounting, if a tranny fits one engine, it will fit another (providing the proper adapter plate is used). There are three types of fuel systems used on the 5.9 Cummins engines, and these differences are the only major aspects that set them apart from each other.
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