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DorkMissile · 01-30-2019, 10:18 PM

I did the LT4 HPFP and Injector install last week. It is actually a pretty easy install, however my car has a centrifugal S/C, so I still had the factory intake on. About 90 minutes start to finish to do.

I can't tell if your car is a 1LE or standard SS, if it is a 1LE then it is supposed to have the ZL1 / LT4 low side pump in the tank. If not, they are not a lot of money ($200ish) but you are probably looking at 2-3hrs of work just to change that.

The cheapest place for the HPFP when I was looking was RockAuto - $615. LT4 Injectors was actually DSX - $497 with shipping. $70 for both the new fuel lines. Common street pricing on both is around $1300 - $1400, throw in the $200 tank pump and 4-5 hours of labor and you are at $2k installed for the full fuel system upgrades.

Dalton at SkidMark will sell you the HPFP, Injectors, E85 sensor and their auxiliary fuel line / pump kit at around $2300, which can feed 850ish HP, where as the complete LT4 setup is probably about what 750-775.

01-30-2019, 10:18 PM	#11
DorkMissile Drives: DZ Join Date: Aug 2018 Location: Alaska Posts: 612	I did the LT4 HPFP and Injector install last week. It is actually a pretty easy install, however my car has a centrifugal S/C, so I still had the factory intake on. About 90 minutes start to finish to do. I can't tell if your car is a 1LE or standard SS, if it is a 1LE then it is supposed to have the ZL1 / LT4 low side pump in the tank. If not, they are not a lot of money ($200ish) but you are probably looking at 2-3hrs of work just to change that. The cheapest place for the HPFP when I was looking was RockAuto - $615. LT4 Injectors was actually DSX - $497 with shipping. $70 for both the new fuel lines. Common street pricing on both is around $1300 - $1400, throw in the $200 tank pump and 4-5 hours of labor and you are at $2k installed for the full fuel system upgrades. Dalton at SkidMark will sell you the HPFP, Injectors, E85 sensor and their auxiliary fuel line / pump kit at around $2300, which can feed 850ish HP, where as the complete LT4 setup is probably about what 750-775.