Does anybody know

Up through 1993, a rotary mechanical injection pump was used, 1994-1998.5 the Bosch P7100 injector pump was used, which is also mechanical. The P7100 is much more desirable if he plans on modifying it. If he wants to go this route, not only will he have to switch the injector pumps, but he will have to switch the front covers on the engines too. Also, if doing this, be sure to take care of the KDP (killer dowl pin) while the front cover is off. Tons of places sell the kit to take care of this. The KDP is a dowl pin that is known to vibrate out and fall onto the path of the crank, cam, injection pump gears and cause havoc.