Verification of 1LE Low Side Pump

DorkMissile · 01-15-2019, 10:13 AM

Anyone have any real concrete proof yet that the 1LE package actually has the ZL1 low side fuel pump?

I see a lot of people assuming, just wondering if it has been verified. I am doing LT4 HPFP & Injectors on my LT1, but want to make sure I have the low side pump before we head to the dyno.

jwcassidy1969 · 01-15-2019, 07:56 PM

Yes we do. It has been verified many times they used ZL1 pumps in 5th and 6 gen 1LE models. When I got my procharger installed my tuner said it went farther than standard ss model pumps also.

DorkMissile · 01-17-2019, 06:22 AM

I was under the understanding that people think the 1LE does, but nobody has actually dropped a 1LE tank and taken a pump out to verify the PN# is all.

I really don't want them to go full smack at the dyno and lean it out on the top end

01-15-2019, 10:13 AM	#1
DorkMissile Drives: DZ Join Date: Aug 2018 Location: Alaska Posts: 612	Verification of 1LE Low Side Pump Anyone have any real concrete proof yet that the 1LE package actually has the ZL1 low side fuel pump? I see a lot of people assuming, just wondering if it has been verified. I am doing LT4 HPFP & Injectors on my LT1, but want to make sure I have the low side pump before we head to the dyno.

01-15-2019, 07:56 PM	#2
jwcassidy1969 Drives: 2018 red hot 1le Join Date: Apr 2015 Location: Porter tx Posts: 76	Yes we do. It has been verified many times they used ZL1 pumps in 5th and 6 gen 1LE models. When I got my procharger installed my tuner said it went farther than standard ss model pumps also.

01-17-2019, 06:22 AM	#3
DorkMissile Drives: DZ Join Date: Aug 2018 Location: Alaska Posts: 612	I was under the understanding that people think the 1LE does, but nobody has actually dropped a 1LE tank and taken a pump out to verify the PN# is all. I really don't want them to go full smack at the dyno and lean it out on the top end

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