The Howell EFI kit converts 258 Jeep engines to Electronic Fuel Injection by adapting 4.3L GM V-6 components and in-line electric fuel pump. Throttle Body Injection adapts directly to Jeep 2 barrel carb inlet manifold. Most of the old emmission plumbing is eliminated making for a cleaner and easier to maintain engine. Improve your Jeep vehicles drivability and fuel economy while bringing life back into a tired motor by converting to fuel inection today!
Legal in California, or other states adopting California emissions standards, only for racing vehicles that may never be used, registered or licensed for use, upon a highway. Can not be shipped to California residents.
Level 4 Experts Only
Welding required for 02 sensor bung.
Throttle Body
Inline fuel pump
Fuel line
Wiring Harness
ECM
Gaskets and washers
O2 sensor bung (weld in)
02 sensor
Temperature sensor
Adapter plate
Hardware
90 Day Limited Warranty, Computer Warrantied for 6 months.
Engine Size: 4.2L 258ci I-6
Engine Fuel: Gasoline
Shipping Weight: 16lb
1983 Jeep CJ-5
1982 Jeep CJ-5
1981 Jeep CJ-5
1986 Jeep CJ-7
1985 Jeep CJ-7
1984 Jeep CJ-7
1983 Jeep CJ-7
1982 Jeep CJ-7
1981 Jeep CJ-7
1985 Jeep CJ-8
1984 Jeep CJ-8
1983 Jeep CJ-8
1982 Jeep CJ-8
1981 Jeep CJ-8
CARB Notice
Learn More
This kit uses almost entirely GM parts and even includes a diagnostic port for easy trouble shooting at any GM facility. It does not get much easier than this.Installation Notes
Installation Difficulty:
Level 4 Experts Only
Welding required for 02 sensor bung.
Installation Time: 2-4 hours
Parts Included
Inline fuel pump
Fuel line
Wiring Harness
ECM
Gaskets and washers
O2 sensor bung (weld in)
02 sensor
Temperature sensor
Adapter plate
Hardware
Warranty
Specs
Fitment
Jeep CJ-5
Jeep CJ-7
Jeep CJ-8
Description
The Howell EFI kit converts 258 Jeep engines to Electronic Fuel Injection by adapting 4.3L GM V-6 components and in-line electric fuel pump. Throttle Body Injection adapts directly to Jeep 2 barrel carb inlet manifold. Most of the old emmission plumbing is eliminated making for a cleaner and easier to maintain engine. Improve your Jeep vehicles drivability and fuel economy while bringing life back into a tired motor by converting to fuel inection today!
Legal in California, or other states adopting California emissions standards, only for racing vehicles that may never be used, registered or licensed for use, upon a highway. Can not be shipped to California residents.
Level 4 Experts Only
Welding required for 02 sensor bung.
Throttle Body
Inline fuel pump
Fuel line
Wiring Harness
ECM
Gaskets and washers
O2 sensor bung (weld in)
02 sensor
Temperature sensor
Adapter plate
Hardware
90 Day Limited Warranty, Computer Warrantied for 6 months.
Engine Size: 4.2L 258ci I-6
Engine Fuel: Gasoline
Shipping Weight: 16lb
1983 Jeep CJ-5
1982 Jeep CJ-5
1981 Jeep CJ-5
1986 Jeep CJ-7
1985 Jeep CJ-7
1984 Jeep CJ-7
1983 Jeep CJ-7
1982 Jeep CJ-7
1981 Jeep CJ-7
1985 Jeep CJ-8
1984 Jeep CJ-8
1983 Jeep CJ-8
1982 Jeep CJ-8
1981 Jeep CJ-8
CARB Notice
Learn More
This kit uses almost entirely GM parts and even includes a diagnostic port for easy trouble shooting at any GM facility. It does not get much easier than this.Installation Notes
Installation Difficulty:
Level 4 Experts Only
Welding required for 02 sensor bung.
Installation Time: 2-4 hours
Parts Included
Inline fuel pump
Fuel line
Wiring Harness
ECM
Gaskets and washers
O2 sensor bung (weld in)
02 sensor
Temperature sensor
Adapter plate
Hardware
Warranty
Specs
Fitment
Jeep CJ-5
Jeep CJ-7
Jeep CJ-8
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