Lucas 42.5 pound/hour Fuel Injectors

Lucas 42.5 pound/hour Fuel Injectors


Part Number: LSJ-FIS-425-4

Shipping Weight: 1.00 pounds

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  • 2005-2007 Cobalt SS with LSJ (supercharged) engine
  • 2004-2007 ION Red Line with LSJ (supercharged) engine

Rated at 42.5 pounds per hour, these high impedance injectors will support up to ~294 (crank) horsepower, or ~250 (wheel) horsepower in the Supercharged Ecotec 2.0L application. Sold in sets of 4 these injectors flow 5.4 grams/second compared to the stock 4.3 grams/second 34.1 pounds/hour injectors which support ~235 WHP.

These injectors have EV1 connectors and require the use of our Casper's Fuel Injector Wire Harness in order to work in the LSJ 2.0L Ecotec application.


  • We strongly recommend the use of custom PCM or custom MAF tuning for use with larger fuel injectors.
  • Injectors are brand new and flow-matched.

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