High Pressure Fuel pump install

[Broken85]

Finally updating the powertrain on my 85 K10 Silverado short bed with a BluePrint turn-key, fuel injected 350. I am going to have to upgrade to a high pressure fuel pump obviously but I wanted to check with the group first before I install this.

My issue is that I have dual fuel tanks so I think the only place I can put this pump would be after the selector valve. Does anyone see an issue with thi?? I have the motor and trans already out so I have plenty of room to install this on the frame and run the lines the right way, but By the time I would figured out this not the best set up, I would likely have the whole Powertrain back in place so all knowledge is welcome. Kit below

EFI Fuel Pump and Plumbing Kit BPP5267 - For Fuel injected engines

Description: BluePrint Engines complete EFI fuel pump and plumbing kit BluePrint Engines complete EFI fuel pump and plumbing kit is your solution when completing the fuel system on your Sniper, Sniper 2, or any EFI engine such as Hemi or LS. We expanded on others fuel pump kits by upgrading to...

blueprintengines.com

 

[Grit dog]

While there’s no need to buy BPEs kit, it will not be a problem to put it just downstream of the switching valve, fairly confident.
Buddy is doing the same to feed a big LS in his pickup and BPE said it will pull from the tank. Just keep it low and close to the tanks.
Personally, I’d be torn between putting a couple in-tank fuel pumps in, vs a single pump. Reason 1, it’s more proper-er to push all the fuel vs pulling it a ways. Reason 2, redundancy. Reason 3, all installs invisibly with virtually unlimited lifespan.
In line aftermarket fuel pumps, regardless of price or brand generally don’t have the same long term reliability as in tank OE type options.
That said, (knock on wood) I have a cheap little in-line 5psi electric pump just downstream of the valves and about as low as I can get it without hanging below the frame rails. It’s probably pulled a thousand gallons of gas by now and still working.
By comparison when I bought the truck, same type of pump was cheese wired up by the front of the engine and they wouldn’t last more than a few tanks of gas pulling that far.
There’s so many high pressure options, including a few that are designed to pull fuel, the quick and easy solution is what you’re planning to do. Unless the bed is coming off and you need new fuel senders anyways.

 

[75gmck25]

Another option is to use a surge tank or fuel sump with built in fuel pump in the engine compartment. Then just leave the existing dual tank solenoid and lines in place.
- Feed the surge from the existing mechanical fuel or from a low pressure electric pump.
- surge tank holds about a liter of fuel and a submerged high pressure pump.
- high pressure pump feeds the EFI and regulates the pressure

Edelbrock and other EFI vendors make a surge tank as a complete unit, including the pump and pressure regulator. They are relatively expensive ($400-500), but not so bad if you consider they include a high pressure pump and regulator.

 

[Grit dog]

Another option is to use a surge tank or fuel sump with built in fuel pump in the engine compartment. Then just leave the existing dual tank solenoid and lines in place.
- Feed the surge from the existing mechanical fuel or from a low pressure electric pump.
- surge tank holds about a liter of fuel and a submerged high pressure pump.
- high pressure pump feeds the EFI and regulates the pressure

Edelbrock and other EFI vendors make a surge tank as a complete unit, including the pump and pressure regulator. They are relatively expensive ($400-500), but not so bad if you consider they include a high pressure pump and regulator.

The electric sump system is an interesting and cool solution.
Could be a great easy solution if one already has a solid fuel system upstream of the engine and a mechanical pump.
The OPs BPE 350 block may not have been mfg with a mechanical pump option though. In which case I’d likely shy away from the extra gear.
For a similar cost, one could get 2 OE style in tank high pressure units (albeit with more wiring and fuel line install required). Assuming it’s just a mild efi 350.
The options are endless. Could spend $1000 or probably squeak by for about $250 all in for a reliable system that’ll pump more than a 300-400hp small block needs.

 

[75gmck25]

Another more complicated solution is to swap in a Blazer or Suburban tank back in the spare tire area, and get rid of the dual tanks. No more switch required, only one fuel pump, and some of the Sub tanks hold a lot of fuel. However, your spare then has to be up in the bed.

I’m sure you can find some online articles that explain how to install the large rear tank. The most complicated part of the mod seems be finding a place for the fuel filler. In the bed floor is relatively easy, but the most clean looking is to pattern it after a Blazer filler in the side of the box.

 

[PrairieDrifter]

Another more complicated solution is to swap in a Blazer or Suburban tank back in the spare tire area, and get rid of the dual tanks. No more switch required, only one fuel pump, and some of the Sub tanks hold a lot of fuel. However, your spare then has to be up in the bed.

I’m sure you can find some online articles that explain how to install the large rear tank. The most complicated part of the mod seems be finding a place for the fuel filler. In the bed floor is relatively easy, but the most clean looking is to pattern it after a Blazer filler in the side of the box.

That's what I'm doing to all of my pickups. Other than grandpas 79.

Main issue is you can't get the fuel selector valves. Definitely is a big swap, but so worth it in the long run.

THEN, you can be smarter than gm and weld in a fuel door on the DRIVERS side lol. Just behind the rear fender well.

 

[Bloodhound1981]

THEN, you can be smarter than gm and weld in a fuel door on the DRIVERS side lol. Just behind the rear fender well.

I put mine in the wheel well, and have no gas door on the outside of the bed. That really confuses folks.

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[PrairieDrifter]

I put mine in the wheel well, and have no gas door on the outside of the bed. That really confuses folks.

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That's pretty good if you don't want to paint your truck!

 

[Camar068]

I put mine in the wheel well, and have no gas door on the outside of the bed. That really confuses folks.

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care to share a pic of the plumbing to the wheel well?

 

[Bloodhound1981]

That's pretty good if you don't want to paint your truck!

Oh she's freshly painted. Just got to be careful at the pump (and tall haha).

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[Bloodhound1981]

care to share a pic of the plumbing to the wheel well?

I will have to take a close up pic and post it. Looking at the truck from the side it kinda blends in. You can kind of tell in the above picture.

 

[winfred]

injecting my 78 c30 big block, my path is, two new tbi tanks and pumps into a new switching valve, that into a bosch inline pump (like a 044, but not that exact model) then into the corvette return style regulated fuel filter that the LS guys all use, that filter makes it easy as all of the new stuff is under the bed, and the pumps stay happy with a return, and i'm not trying to send 60psi through the valve, going to use the valve signal to switch relays for the in tank pumps

not too different delivery besides the twin tanks, than my 91 squareburban as it was already tbi with a full return system, so i just added the bosch inline, 50ish thousand miles later still going