well, the 93 has a spider injection unit in the intake manifold. ten bolts and a gasket...
The v8 engine 2002 GMC Jimmy 6 cylinders can be replaced with the GM Vortec 4200 straight-6 engine.
The oil filter is located on the driver's side of the engine right next to the oil pan. Read more in the link below: Changing Oil in a 4.3L Vortec
The firing order for the 4.3L engine is 165432
5 quarts
the simple answer is YES. though, a 94 would be either a t.b.i. system or early vortec. if it is a vortec, the swap shouldn't require a p.c.m. reflash- however if your 94 is a t.b.i. you will need to change the intake and fuel delivery systems to handle the 60 p.s.i. operating pressure for the vortec engine.
the injector spider is under the plastic plenium on top of the engine
you would need to change the cylinder heads also.See link below
it should
The EGR valve is located in the center of the intake, at the front of the engine, between the alternator and the A/C compressor. I've added a picture of the location to the links on the right. It is titled "Picture of EGR valve location, on 1996 - 2001 4.3L (262c.i.) Vortec V6 engines"
I believe 190 hp. That's what my 99 Jimmy with a vortec 4.3 is estimated at. The basic 4.3 Vortec V-6 was rated at 160 or 165 hp. Starting in 1994 an "enhanced Vortec" 4.3 V-6 of 195 HP became available alongside the basic version.
It is within the water outlet which is on the lower end of the top radiator hose. I hope this helps you. Mark
160 HP for 1991-1992. 165 HP for 1992-1994.