I did search for this, but couldn't get a definite answer.........


91 Caprice Wagon....... not going to be fast, but should be fun


L03 going to use Vortec heads, Edelbrock Performer, stock LT1 cam, 9C1 injectors(or better)...........will do ultimate TBI mods too

What is the part number of the Walbro pump to get for this??? 190 or 255?? LP or HP?? Internal/external??

Also I looked at the afpr/vafpr posts, but am still confused as to which one to use........ Any help here??

I know I can do the .25 mod, but will I want/need a new spring?

Just trying to get all the small important parts before I jump in..........

 

Am I overlooking a sticky somewhere???

 

An intake fuel pump is what you want. I don't know though if the caprice fuel pumps are compatable with the f-body. You may want to check first to see if the stock recomended fuel pump has the same GM part number for the f-body. If so you can use a TPI pump or the walbro 190.

 

So if I read the following information from GMPartsDirect properly, my 91 B-Car and the 3rd gen F-body cars are the same fuel pump.

So I can update to the Walbro , but which one. 190 or 255? Will I have the need for 255?

I am making progress on this........



Description: FUEL PUMP
Part #: 25168719
Categories:
Collision > ENGINE > ENGINE
Collision > EXHAUST AND EMISSION > FUEL SYSTEM
Mechanical > GROUP 2 - FUEL & EXHAUST > FUEL SUPPLY SYSTEM

Chevrolet Camaro

1982-1992
1982-83 8 Cyl Pump, ...

1982-1992
1986 4 Cyl Pump, Fue ...

1982-1992
4 Cyl Pump, Fuel (El ...

1982-1992
w/TBI 1988-92 8 Cyl ...

1986
2.5L Eng

1992
5.0L Eng

1988, 1991
5.0L Eng, Eng VIN E

1982-1986
In-Line4

1985-1986
V6

1992
V8, 5.0L Eng

1988
V8, 5.0L Eng, Eng VIN E

1982
V8, 5.0L Eng, Fuel Injection

1983
V8, Fuel Injection

1991
V8, TBI
Chevrolet Caprice

1980-1990
1989-90 267, 305, 35 ...

1980-1990
262 Eng 6 Cyl Gas P ...

1980-1990
262 Eng 6 Cyl Gas P ...

1980-1990
262 Eng 6 Cyl Gas Pu ...

1985-1986
4.3L Eng

1989-1990
5.0L Eng, Eng VIN E

1989
5.7L Eng, Eng VIN 7

1985-1988
V6

1989
V8, Eng VIN 7

1989-1990
V8, Eng VIN E

1991
Wagon

 

The 190 is fine. It will support more power than any TBI system will need. I would go with the 255 if you are planning on a high pressure, high power, multi port set-up in the future.

 

for the $10.00 price difference, I may as well go 255......

Thanks for the help Shifty.