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What injector length and connector for '01 5.3L?

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Old 06-10-2012, 08:18 PM
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Default What injector length and connector for '01 5.3L?
What is the correct injector length for an '01 5.3L. Will LS1 injectors drop right in? And are the connectors EV1 or EV6?

That's all. Thanks!
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Old 06-10-2012, 08:38 PM
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Really depends on the vehicle the 5.3 came from, will either use a ev6 or Delphi mini style. Ls1 injectors are not a direct swap.
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Old 06-10-2012, 08:45 PM
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It's a Silverado, 2WD, 5.3L. Not flex fuel or anything fancy like that.

So if LS1 injectors don't fit, then what will? LS2, LS3? Or are these injectors their own length?
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Old 06-10-2012, 09:22 PM
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Multec II is the non flex truck style.
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Old 06-10-2012, 09:26 PM
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Ls2, ls3 are ev6 style and are taller than the Delphi mini (multec II) and won't match you connectors.
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Old 06-10-2012, 09:38 PM
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So to get the LS1 injectors to work, I would need Multec II to EV1 adapters and spacers for the fuel rails?
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Old 06-10-2012, 09:48 PM
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Spacers yes, as for adapters I have not heard of anyone making them. I switched mine by re wiring the injector harness ( but that was 5yrs ago)
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Old 06-10-2012, 09:50 PM
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Racetronix has the adapters: Racetronix - Injector Adapter - Multec II > Minitimer
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Old 06-11-2012, 12:08 AM
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Should have read this first: https://www.performancetrucks.net/fo...0/#post4931576

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Old 06-11-2012, 12:38 AM
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Can someone tell me what size spacers you needed when using LS1 injectors? According to FIC in the link I posted, the LS1 injectors are 12mm (0.47") taller, but I've read of people using 5/8" spacers.
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