ls1 fuelpump third gen conversion????
12-02-2011, 11:00 PM
#1
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Car: 88 Iroc ls1 swap
Engine: ls1
Transmission: 4l60e
Axle/Gears: original disc
ls1 fuelpump third gen conversion????
have a little problem figuring out what pump i need for my 3rd gen conversion... have the regulater and the lines got them from hawks... just cant seem to find out what pump i need??? any advice would help...
12-08-2011, 09:50 PM
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Car: 88 Iroc ls1 swap
Engine: ls1
Transmission: 4l60e
Axle/Gears: original disc
Re: ls1 fuelpump third gen conversion????
the 88 fuel tank and sendin unit....
12-08-2011, 10:51 PM
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Car: 1990 GTA
Engine: 350
Transmission: 700R4
Axle/Gears: 3.23
Re: ls1 fuelpump third gen conversion????
Or you can use the GM Syclone one, parts# 25163473 or the Ac-delco part# ep381, its rated at 50gph at 55psi.
12-08-2011, 11:05 PM
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Car: 88 Iroc ls1 swap
Engine: ls1
Transmission: 4l60e
Axle/Gears: original disc
Re: ls1 fuelpump third gen conversion????
thanks ive heard about that walbro 255 .... whats the diffrence between gss340 and gss340m????
12-08-2011, 11:08 PM
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Car: 88 Iroc ls1 swap
Engine: ls1
Transmission: 4l60e
Axle/Gears: original disc
Re: ls1 fuelpump third gen conversion????
ima look in to yhat gm one thanks!!!!!!!!!!
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12-09-2011, 07:16 AM
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Car: 1990 RS
Engine: LS1
Transmission: T56
Axle/Gears: 3.73 9 bolt
Re: ls1 fuelpump third gen conversion????
There is a group purchase on ls1tech for a Walbro 255 for like 105 shipped I think. Might want to check those out. Probably cheaper than GM stuff.
12-10-2011, 12:03 PM
#9
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Car: 88 Iroc ls1 swap
Engine: ls1
Transmission: 4l60e
Axle/Gears: original disc
Re: ls1 fuelpump third gen conversion????
thanks everyone!!!!!! just got my mounts in from hawks.....
06-05-2020, 11:26 AM
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Car: 1990 GTA
Engine: 350
Transmission: 700R4
Axle/Gears: 3.23
Re: ls1 fuelpump third gen conversion????
Yeah I think it’s good idea to just upgrade especially if it’s an older pump.
06-05-2020, 12:51 PM
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Re: ls1 fuelpump third gen conversion????
Last edited by gp90gta; 06-05-2020 at 12:55 PM.
06-05-2020, 06:58 PM
#16
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Re: ls1 fuelpump third gen conversion????
The fuel pump for the '96-'98 Vortec* pickups is a 4-bar (58 psi) pump.
That's what I'm going to use.
*To me, these will always be the "Vortec" engines; everything else is an LS.
That's what I'm going to use.
*To me, these will always be the "Vortec" engines; everything else is an LS.
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