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FiTech Ultimate LS 500 HP EFI Short Cathedral Intake Fuel Injection Master Kits
Not Yet Reviewed
FiTech Ultimate LS 500 hp EFI short cathedral intake fuel injection master kits are offered with an inline pump kit, in-tank pump modules, or a Force Fuel system. The kits are enhanced further with a Go Fuel regulator and/or Go-Spark LS3 coils. Choose the kit with the options you prefer for your swap.
FiTech Ultimate LS 500 hp intake manifolds feature:
* Fabricated 3mm thick aluminum sheet metal and
FiTech Ultimate LS 500 hp EFI short cathedral intake fuel injection master kits are offered with an inline pump kit, in-tank pump modules, or a Force Fuel system. The kits are enhanced further with a Go Fuel regulator and/or Go-Spark LS3 coils. Choose the kit with the options you prefer for your swap.
FiTech Ultimate LS 500 hp intake manifolds feature:
* Fabricated 3mm thick aluminum sheet metal and TIG welded
* Cast, cable activated billet aluminum 92mm throttle body
* Handheld controller with color touch screen and cable
* Windshield mount for touch screen controller
* LS ECU
* 36 lb./hr. injectors
* High volume billet fuel rails
* Self-learning technology maintains your target air/fuel ratio settings
* Sequential fuel and spark control with individual cylinder trim
* Connects to 24x and 58x cam sensors
* Knock sensor control connects to factory sensors
* 3-Bar MAP sensor for boosted applications up to 30 psi
* Tach output driver works with most tachometers
* Two programmable electric fan outputs
* Supplied with WBO2 sensors
* Custom wiring harness for a direct plug-in installation
* Systems with transmission control allows shift point and firmness adjustments on 4L60/65/80/85 GM transmissions
Fuel delivery options:
* Inline pump kit is supplied with FiTech's heavy-duty 255 lph external fuel pump that is suitable to support engines producing up to 600 (NA) hp. The kit includes 40 ft. of high-pressure fuel hose, two fuel filters including a serviceable 10-micron filter, fittings, mounts, and clamps.
* In-tank pump modules:
-- 255, 340, or 440lph universal pump module for tanks with a depth of 6 to 15 in., billet top assembly with strategically placed supply, return, and vent ports to help route fuel lines easily. Gaskets terminals, and clamps are included.
-- 340 lph regulated fuel pump module, single line system with h -6 AN pressure port and a 4-bar (58 psi) regulator that will fit most EFI-ready tanks.
-- 340 lph return-less pump module that will support up to 800 hp and supplied with an internal regulator to maintain 58 psi.
* Force Fuel system mounts under the hood and is fed with the original mechanical or electric fuel pump then supplies the EFI system with the required high pressure using an internal 340 lph pump. The reservoir holds a 1/2 gallon of fuel to prevent fuel starvation and a serviceable 10-micron fuel filter is included.
Go Fuel Tight Fit regulator can be adjusted from 30 to 70 psi and will support up to 1,000 hp. It is crafted from billet aluminum, features -6 ORB ports along with a vacuum/boost port, and includes gauge. The Go-Spark LS3-style coils bolt in place of the originals and accept the sealed, locking connector and plug wire terminal for a simple upgrade. They are available with or without a built-in LED that flashes when the coils are firing.
Showing In Stock Items. Show All 18 Items.
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-76601
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-76301
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-76302
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-76602
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-78701
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-78702
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-79801
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-79802
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-79701
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-79702
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-78802
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Ultimate LS 500 HP EFI System With Master Kit Short Cathedral Intake
Part Number: FIF-78801
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
