LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

2 different injectors?

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Old 11-28-2018, 07:54 AM
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2 different injectors?

Alright, so I was replacing my intake manifold gaskets due to the rear leaking oil, the felpro kit also came with injector o rings, so I pulled the fuel rail to replace them. Well, it appears that 2 of the injectors dont match the others haha. May be a dumb question, but typically aren't they all supposed to be the same?


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Old 11-28-2018, 10:17 AM
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Re: 2 different injectors?

The most important factors are the flow rate and (voltage) offsets. See if you can find a part number for each type, and we can search for info. The tip design could affect the spray pattern, and that could cause minor difference in cylinder balance. Is the engine “stock”?
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Old 11-28-2018, 10:27 AM
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Re: 2 different injectors?

Other than normal bolt ons, headers, intake, etc, it is stock. I will pull the injectors this evening and hope they have part numbers on them.
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