preferred brand of intank fuel pump 88 TBI 454 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

enonz65c30 · 08-31-2021, 04:55 PM

I need to order two new fuel pumps and sending units for my project truck(1988 gmc r3500 454 wTBI). What is everyone's preferred brand? I have twin tanks as well. Thank you in advance for any help on this.

52napco · 08-31-2021, 07:53 PM

Walbro is good or maybe Edelbrock has a made in USA pump..

**57NAPCO** · 09-01-2021, 05:29 AM

I’ve always ordered GM or DELPHI from rockauto.

**THI** · 09-01-2021, 01:38 PM

I also will only use AC Delco or Delphi - I have replaced too many Carter pumps and I only like to do that job once!

44th Miss Inf · 09-01-2021, 04:40 PM

I always use the ep381 pump (96-up vortec) on my tbi trucks, have been since they came out, and have never had an issue. Some recommend the ep377 (94-95 454 tbi) but I would NOT use an ep386, which is what came in the truck. They barely supply enough fuel for a 350, much less a 454.

**57NAPCO** · 09-01-2021, 05:31 PM

I’ve read that before, maybe from you

Quote:

Originally Posted by 44th Miss Inf

I always use the ep381 pump (96-up vortec) on my tbi trucks, have been since they came out, and have never had an issue. Some recommend the ep377 (94-95 454 tbi) but I would NOT use an ep386, which is what came in the truck. They barely supply enough fuel for a 350, much less a 454.

enonz65c30 · 09-06-2021, 11:17 AM

Quote:

Originally Posted by THI

I also will only use AC Delco or Delphi - I have replaced too many Carter pumps and I only like to do that job once!

Thank you for the info, i have a delphi on the way for the driver side and passenger side(whole hanger unit pump and sender) the passenger side sending unit is the worst of the two. ground wire is held on by vice grips

SCOTI · 09-06-2021, 01:57 PM

Delphi. Avoid GM pumps. Anything new is made in Mexico w/these. I installed both L/R new units on my dually (circa 2015) & both failed within months (<6). Swapped to Delphi's & no issues.

SCOTI · 10-14-2022, 07:25 PM

Duplicate deleted.

SCOTI · 10-14-2022, 07:32 PM

Quote:

Originally Posted by SCOTI

Delphi. Avoid GM pumps. Anything new is made in Mexico w/these. I installed both L/R new units on my dually (circa 2015) & both failed within months (<6). Swapped to Delphi's & no issues.

Bringing this thread back TTT..... The 6yr old/<7500 miles Delphi pump that replaced a <6wk old/zero mile A/C Delco pump has failed. Luckily I was just moving the dually around to a different parking space so once I got some muscle to help, we were able to push it into a parking spot.

@44th Miss Inf.... You mention the use of the later spec'd ep381 pump (96-up vortec) vs. the tbi spec'd pump. I thought the fuel psi was way different (<15psi/tbi vs 48-60psi/efi)??

What changes would be required to run one of these on a tbi truck?

44th Miss Inf · 10-14-2022, 08:09 PM

Quote:

Originally Posted by SCOTI

Bringing this thread back TTT..... The 6yr old/<7500 miles Delphi pump that replaced a <6wk old/zero mile A/C Delco pump has failed. Luckily I was just moving the dually around to a different parking space so once I got some muscle to help, we were able to push it into a parking spot.

@44th Miss Inf.... You mention the use of the later spec'd ep381 pump (96-up vortec) vs. the tbi spec'd pump. I thought the fuel psi was way different (<15psi/tbi vs 48-60psi/efi)??

What changes would be required to run one of these on a tbi truck?

The EP381 pump is CAPABLE of producing higher pressure, but the regulator in the tbi is what keeps the psi low. The ep381 flows more gph than the ep386.

I’ve never changed a thing, and never had an issue

SCOTI · 10-14-2022, 09:54 PM

Quote:

Originally Posted by 44th Miss Inf

The EP381 pump is CAPABLE of producing higher pressure, but the regulator in the tbi is what keeps the psi low. The ep381 flows more gph than the ep386.

I’ve never changed a thing, and never had an issue

Ahh...... Thank you for the quik follow up. That opens up my fuel pump options. I'm going to try them/switch to these.

08-31-2021, 04:55 PM	#1
enonz65c30 Registered User Join Date: Dec 2013 Location: Powhatan va Posts: 65	preferred brand of intank fuel pump 88 TBI 454 I need to order two new fuel pumps and sending units for my project truck(1988 gmc r3500 454 wTBI). What is everyone's preferred brand? I have twin tanks as well. Thank you in advance for any help on this.

08-31-2021, 07:53 PM	#2
52napco Registered User Join Date: Jun 2014 Location: upstate sc Posts: 2,095	Re: preferred brand of intank fuel pump 88 TBI 454 Walbro is good or maybe Edelbrock has a made in USA pump..

09-01-2021, 05:29 AM	#3
57NAPCO F’B’D guy Join Date: Feb 2004 Location: Texas/Maine Posts: 2,234	Re: preferred brand of intank fuel pump 88 TBI 454 I’ve always ordered GM or DELPHI from rockauto.

09-01-2021, 01:38 PM	#4
THI Active Member Join Date: Jan 2017 Location: Traverse City, MI Posts: 195	Re: preferred brand of intank fuel pump 88 TBI 454 I also will only use AC Delco or Delphi - I have replaced too many Carter pumps and I only like to do that job once!

09-01-2021, 04:40 PM	#5
44th Miss Inf Registered User Join Date: Sep 2002 Location: Liberty, Mississippi Posts: 672	Re: preferred brand of intank fuel pump 88 TBI 454 I always use the ep381 pump (96-up vortec) on my tbi trucks, have been since they came out, and have never had an issue. Some recommend the ep377 (94-95 454 tbi) but I would NOT use an ep386, which is what came in the truck. They barely supply enough fuel for a 350, much less a 454.

09-06-2021, 01:57 PM	#8
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,066	Re: preferred brand of intank fuel pump 88 TBI 454 Delphi. Avoid GM pumps. Anything new is made in Mexico w/these. I installed both L/R new units on my dually (circa 2015) & both failed within months (<6). Swapped to Delphi's & no issues. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

10-14-2022, 07:25 PM	#9
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,066	Re: preferred brand of intank fuel pump 88 TBI 454 Duplicate deleted. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.* Last edited by SCOTI; 10-14-2022 at 07:33 PM.



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