When "initially installing" the 3800SC, (1987 GT) ,can the original 6 cyl Fuel pump be used to "ONLY' start it ?? will it have enough pressure just to "TEST" that everything else is functioning ?? (drop the tank and put the right pump in" after I know" it will start ??) Thanks

Yes the original fuel pump to the 2.8 will start it. But I would not recommend going into boost did it on my car ran ok at idle. hope it helps.

no problems.. the pumps are basically the same the 2.8 is just slightly smaller.

Why?

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Turbo 3800 E85 F23 5spd spec5
10.91@133.1

If you decide to eventually replace the fuel pump, I am running a 3800 SC Series engine with a DW200 fuel pump. It is quite, fairly reasonably priced, and has a "no fault" three year warranty.

Nelson

gotta know the motor runs!!! thats why!!!

Exactly ! I already Have the correct new pump, just would like to know it'll actually RUN before I drop the tank. I have the 3800SC and 4t65e HD on an extra cradle (ready to go in), so if I run into problems, the 2.8 can be "slipped right back in". Thanks