Description
The FiTech 1981-1987 Oldsmobile Cutlass 440 LPH EFI Fuel Tank Kit (58121) provides a comprehensive fuel delivery solution for 1981-1987 Oldsmobile Cutlass vehicles. Designed to simplify EFI conversions, this kit includes a coated steel fuel tank, a high-flow 440 LPH in-tank fuel pump, a sending unit for factory gauges, and all necessary mounting hardware. It is rated to support up to 1000 horsepower, making it suitable for high-performance applications.
KEY FEATURES AND BENEFITS:
- Direct-fit design for 1981-1987 Oldsmobile Cutlass.
- Includes a 17-gallon coated steel fuel tank with internal baffles for consistent fuel delivery.
- Features a 440 LPH in-tank fuel pump, supporting up to 1000 horsepower.
- Comes with a sending unit compatible with factory gauges.
- Equipped with -6 AN inlet/outlet connections for leak-free fuel lines.
- Recessed sending unit and pump mount for added clearance.
- Includes mounting straps for secure installation.
SPECIFICATIONS:
- Brand: FiTech Fuel Injection
- Part Number: 58121
- Tank Capacity: 17 gallons
- Pump Flow Rate: 440 LPH (116 GPH)
- Horsepower Rating: 1000 HP
- Fitting Size: -6 AN
- Tank Material: Coated Steel
- Tank Color: Silver powder-coated
- Compatibility: 1981-1987 Oldsmobile Cutlass
- Sending Unit Included: Yes
- Mounting Straps Included: Yes
HOW TO USE:
- Preparation: Disconnect the vehicle’s battery and drain the existing fuel tank.
- Removal: Remove the old fuel tank and sending unit from the vehicle.
- Installation: Position the new FiTech 58121 fuel tank into place, using the provided mounting straps.
- Connection: Connect the sending unit wiring to the vehicle’s wiring harness.
- Fuel Lines: Attach the -6 AN fuel lines to the tank’s inlet and outlet fittings.
- Pump Wiring: Connect the fuel pump wiring to the vehicle’s electrical system, following the manufacturer’s instructions.
- Final Check: Ensure all connections are secure and leak-free.
- Refueling: Refill the tank with fuel and reconnect the battery.
- Testing: Start the vehicle and check for proper fuel delivery and gauge operation.
BENEFITS OF USING THE FITECH 1981-1987 OLDSMOBILE CUTLASS 440 LPH EFI FUEL TANK KIT (58121):
- Simplifies EFI conversions by providing a complete fuel delivery solution.
- Ensures consistent fuel pressure and delivery, even under high-performance conditions.
- Eliminates the need for external fuel pumps, reducing installation complexity.
- Provides a modern and reliable fuel system for classic vehicles.
- Allows the use of modern EFI systems in older vehicles.
- Maintains the factory gauge function.
FEATURES:
- Internal Baffling: For minimized fuel sloshing.
- In-Tank Pump Placement: For efficient fuel delivery.
- Powder-Coated Finish: For corrosion resistance.
- Precision-Engineered: For direct fitment.
- Recessed Areas: For pump and sending unit.
- OEM Style Tank Design: For a seamless upgrade.
- Complete Kit: Includes tank, pump, sender, and straps.





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