markarleta1

http://http://s383.photobucket.com/a...t=DSC00379.jpgI have a 64 malibu ss with a 5.3 and want to use a external fuel pump but dont which one to use. has anybody used one? which one should i use? what pressures do i need? thanks!

rockytopper

I used the walbro 255, many folks here have done the same. They are quiet and do the job. I have a stock tank with a factory dual line sending unit and vet filter regulator.

ryanvv355

iTrader: (17)

There has been some discussion of the 255 not being as good as it once was quality wise, reports on here say they are only lasting few thousand miles when externaly mounted.

Bosch makes a good line of externals

You need to maintain 58psi at the rail

Carshopinc.com

iTrader: (5)

The 255 external is fine, you will find that most pump failure is due to installation error.... Sufficient gauge wiring must be used and the pump should be mounted close to the tank and it never hurts to have it lower than the tank..... also take in to consideration fuel filters before the pump to prevent debris, and orifice size feeding the pump so you don't make it work harder to flow the same amount of fuel..

markarleta1

thanks! where do i get a 255? what kind of filter do i use? can i hook them up together? via an fittings? do i need a regulator? what kind? why? what pressure?

LS1MCSS

iTrader: (18)

I have a Weldon 600A and regulator that I will make you a bargain on. It's very quite for an external pump.

Carshopinc.com

iTrader: (5)

I have them in stock......

rockytopper

Here are the list of the parts I purchased for my fuel system.

walbro fuel pump p/n GLS392 110$ AT Evil BAY
vet filter/regulator gm p/n 10299146 or wix number 33737 on Evil bay 40$
dorman fuel fittings to mate with filter (3) from midway auto
part numbers 800-155, 800- 120, 800-121 about 30$ plus shipping.

good luck with your build