Specs on stock fuel pumps

[2001silverado]

Does anyone know the specs of a stock fuel pump on a 2001 4.8 and on the 8.1's, Im thinking of buying the 8.1 fuel pump if its bigger and its stock injectors at the local parts store.

[farmtruc]

<div class='quotetop'>QUOTE(2001silverado &#064; Jun 18 2007, 05&#58;35 PM) [snapback]97164[/snapback]</div>

Does anyone know the specs of a stock fuel pump on a 2001 4.8 and on the 8.1&#39;s, Im thinking of buying the 8.1 fuel pump if its bigger and its stock injectors at the local parts store.
[/b]

I would skip on anything stock if you&#39;re going through the trouble to replace the pump.
Get a nice walbro 255 intank pump and you won&#39;t have to worry about fuel issues for a while.
just my opinion.
As far as I know, the stock pump in the 8.1L is the exact same thing, when we replace them, they look identical, but that could only be externally.

let me know i can get you one,
allen

[Sleaper]

<div class='quotetop'>QUOTE(farmtruc &#064; Jun 18 2007, 06&#58;39 PM) [snapback]97166[/snapback]</div>

I would skip on anything stock if you&#39;re going through the trouble to replace the pump.
Get a nice walbro 255 intank pump and you won&#39;t have to worry about fuel issues for a while.
just my opinion.
As far as I know, the stock pump in the 8.1L is the exact same thing, when we replace them, they look identical, but that could only be externally.

let me know i can get you one,
allen
[/b]

[2001silverado]

Yeah, I probably will go with the walbro, its only &#036;132 at texas speed. Besides I looked up the two pumps at autozone.com and the 4.8 and 8.1 use the same one. What about using the stock injectors from an 8.1? I dont know what my stock ones are.

[farmtruc]

<div class='quotetop'>QUOTE(2001silverado &#064; Jun 18 2007, 05&#58;48 PM) [snapback]97169[/snapback]</div>

Yeah, I probably will go with the walbro, its only &#036;132 at texas speed. Besides I looked up the two pumps at autozone.com and the 4.8 and 8.1 use the same one. What about using the stock injectors from an 8.1? I dont know what my stock ones are.
[/b]

The stock injectors from an 8.1 are about a 29lb injector, that&#39;s just on the edge, the larger marine injectors are 42lb&#39;s, that&#39;s plenty.

[2001silverado]

<div class='quotetop'>QUOTE(farmtruc &#064; Jun 18 2007, 07&#58;05 PM) [snapback]97173[/snapback]</div>

The stock injectors from an 8.1 are about a 29lb injector, that&#39;s just on the edge, the larger marine injectors are 42lb&#39;s, that&#39;s plenty.
[/b]

would the 29lb injectors and the walbro be enough to run my setup. 4.8 with powerdyne 6psi

[Sleaper]

<div class='quotetop'>QUOTE(2001silverado &#064; Jun 18 2007, 09&#58;23 PM) [snapback]97190[/snapback]</div>

would the 29lb injectors and the walbro be enough to run my setup. 4.8 with powerdyne 6psi
[/b]

Get the 42&#39;s. You don&#39;t want to worry if you&#39;ve got enough and the 42&#39;s would do well.

[txarkitekt]

<div class='quotetop'>QUOTE(2001silverado &#064; Jun 18 2007, 09&#58;23 PM) [snapback]97190[/snapback]</div>

would the 29lb injectors and the walbro be enough to run my setup. 4.8 with powerdyne 6psi [/b]

Just go ahead and grab the 42lb. injectors and Walbro from Allen. You will be fine. The 42&#39;s are bigger than what you need, but that is better than starving your motor...

Allen, does he need fuel rails also?

[farmtruc]

<div class='quotetop'>QUOTE(txarkitekt &#064; Jun 19 2007, 08&#58;16 AM) [snapback]97210[/snapback]</div>

Just go ahead and grab the 42lb. injectors and Walbro from Allen. You will be fine. The 42&#39;s are bigger than what you need, but that is better than starving your motor...

Allen, does he need fuel rails also?
[/b]

That combination will work just fine, it&#39;s probably the best solution. No fuel rails needed for that setup, I believe the powerdyne won&#39;t over power the stock fuel lines and setup, just the injectors and pump.


Hey, I do have two sets of 42lb used injectors coming, they are &#036;250.

let me know,
allen

[2001silverado]

Thanks allen, but Im gonna have to pass on those, but I will be getting some in the near future. Thanks Brett