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Old 03-29-2019, 01:25 PM   #1
cmeJATT

 
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Drives: SS-6-SPD
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LT4 Fueling?

So i'm looking to upgrade me fuel system in my 2017 SS 6m/t


where have you guys found best price for the


LT4 High Flow Fuel Injector: Part # 12682374 / 12686277 / 12703612

LT4 High Pressure Fuel Pump: Paty # 12673410

LT4 Low Side: Part # 23377989

LT1 High Pressure Fuel Line: Part # 12677004


so far best i seen was $1,540 from WildHammer.

Last edited by cmeJATT; 05-27-2020 at 10:03 PM.
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Old 04-15-2019, 02:55 PM   #2
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i guess WildHammer will be the cheapest.
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Old 04-15-2019, 07:33 PM   #3
2ltrgsr
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I think this would go in the LT1 area ...ZL1's come with those parts..LOL
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Old 04-19-2019, 06:43 AM   #4
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Lt4 injectors 12686277 62.00 gmpartsdirect
Lingenfelter pump hi side ebay make a best offer 1500 or less
DSX aux or the Lingenfelter in tank 899 to 1300.00

That way you will not be upgrading much later other than the more expensive LT4 plus 30s injectors..
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Old 04-21-2019, 08:56 AM   #5
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Dsx tuning has the best price on the LT4 stuff last I checked
I think SMG was right there too.
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Old 04-21-2019, 10:02 AM   #6
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Saying don’t go with OEM LT4 high / low
Pump?



Quote:
Originally Posted by EDFHOBBIES View Post
Lt4 injectors 12686277 62.00 gmpartsdirect
Lingenfelter pump hi side ebay make a best offer 1500 or less
DSX aux or the Lingenfelter in tank 899 to 1300.00

That way you will not be upgrading much later other than the more expensive LT4 plus 30s injectors..

Last edited by cmeJATT; 04-21-2019 at 10:12 AM.
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Old 04-21-2019, 10:45 AM   #7
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The best price is to purchase them through rock auto and you can find a discount online that helps even more. The aforementioned are not even in the same ballpark
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Old 04-21-2019, 11:22 AM   #8
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This is what I paid in September, AC Delco M100183 lpfp 122.79 Rock Auto,AC Delco HPM 1036 hpfp 589.79 Rock Auto , GM 12684130 LT 4 injectors 489.99 GM parts house through Ebay, Rock Auto was cheaper but didn't have em hope this helped
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Old 04-21-2019, 01:33 PM   #9
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Quote:
Originally Posted by DapperDan View Post
This is what I paid in September, AC Delco M100183 lpfp 122.79 Rock Auto,AC Delco HPM 1036 hpfp 589.79 Rock Auto , GM 12684130 LT 4 injectors 489.99 GM parts house through Ebay, Rock Auto was cheaper but didn't have em hope this helped
Just scooped up the last available set of those LT4 injectors from those guys. Nice price, thanks for the tip.
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Old 04-21-2019, 02:08 PM   #10
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I've got a set of takeoff LT4 Injectors and HPFP that have a few dyno pulls and maybe 100 miles on that I could save you some money on. I ended up taking the LT4 injectors/pump off to upgrade to the Lingenfelter setup so I could run on fully E85 without Meth Injection. Shoot me a PM if interested.
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Last edited by Hilltopper; 04-21-2019 at 02:22 PM.
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Old 04-22-2019, 04:25 AM   #11
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Quote:
Originally Posted by cmeJATT View Post
Saying don’t go with OEM LT4 high / low
Pump?
No.. not if your going for a bigger build later on.. if your going to buy a new pump might aswell get the biggest one available now instead of posting 6 mos later and taking a hit on seling a used part.

Plus it will take you further right now..
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Old 04-22-2019, 11:05 PM   #12
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Old 04-23-2019, 07:12 PM   #13
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My car came with the ZL1 low side pump, so when I shopped for the upgraded fuel parts over the winter, DSX had the lowest price on the injectors ($59ea - free shipping) and RockAuto had the best price on the LT4 HPFP at $615 - (This was all in Jan)
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Old 04-23-2019, 08:14 PM   #14
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^ thanks man!
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