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Old May 9, 2022 | 02:23 PM
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Default LS3 swap guys enter

So I've been thinking about buying a GM ls3 long block and doing the swap. I know about extension harnesses, knock sensor relocation, and the reluctor wheel. My question is in regards to the LS3 intake manifold. Can I make my current injector work with either my ls6 rail or the LS3 rail? I can't find any threads or info on this. I'm pretty sure the LS3 injectors are shorter but I feel some modifications to the rail brackets should be able to accommodate this. I'd hate to have to buy another set of 85lb injectors.

I'm deployed and can't help but chasing swap and build thoughts while I wait to return home, lol. Thanks guys
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Old May 9, 2022 | 02:50 PM
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Thank you for your military services.

There are several threads on the forum that can help you build on your ideas
Try this for starters
https://www.corvetteforum.com/forums...arts-list.html

Also try the C5 tech section for a deeper dive
We’re here to help. Keep us abreast of your accomplishments
Best of Luck
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Old May 9, 2022 | 03:08 PM
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I actually have already seen that thread and I'm guessing he used the LS3 rail and injectors and just switched the connectors. I'm procharged and the factory ls3 injectors are too small
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Old May 10, 2022 | 10:31 AM
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Why not get LS3 injectors/rails/manifold? Seems silly to modify things when you can have matching OEM LS3 parts that work together.

Sell what you have to fund what you need.
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Old May 10, 2022 | 02:06 PM
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Moved to C5 Tech.
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Old May 12, 2022 | 09:09 AM
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Check out gm ls364 450 horse crate made for swaps with 24 tooth. You will need new intake for rectangular heads. My son went this route great engine
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Old May 12, 2022 | 10:47 AM
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Mods please delete this thread as it's a double thread
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