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What injector length and connector for '01 5.3L?

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Old Jun 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 Jun 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 Jun 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 Jun 10, 2012 | 09:22 PM
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Multec II is the non flex truck style.
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Old Jun 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 Jun 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 Jun 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 Jun 10, 2012 | 09:50 PM
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Racetronix has the adapters: Racetronix - Injector Adapter - Multec II > Minitimer
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Old Jun 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 Jun 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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