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LY5, LS1 interchangeable?

 
Old 09-23-2016, 10:42 AM
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Default LY5, LS1 interchangeable?

Is anything off of a 99 ls1 (intake, cam, accesories, heads) interchangeable with a LY5? did some searching and didnt find much results? i know its a 4th gen block but i want to know what ill have to do to make the swap as least painful as possible. thanks
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Old 09-23-2016, 10:57 AM
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Everything you mentioned is interchangeable, but you might have to drill/tap the block for the F-body alternator bracket. The iron blocks weren't drilled there from the factory, but the material is the same.
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Old 09-23-2016, 02:07 PM
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Originally Posted by JoeNova View Post
Everything you mentioned is interchangeable, but you might have to drill/tap the block for the F-body alternator bracket. The iron blocks weren't drilled there from the factory, but the material is the same.
This^^^

I had to drill/tap my iron 6.0 to fit my alternator bracket and I'll be able to let you know Sunday if you'll have to for a 5.3, but I'm guessing you do.
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Old 09-23-2016, 02:14 PM
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cool! thats really the least of my worries.... will all 3rd gen heads work too? id like to keep the compression in the 9's, i believe theyre 9.4 stock, what head will keep me there?
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Old 09-23-2016, 02:16 PM
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Originally Posted by Deeohgie69 View Post
This^^^

I had to drill/tap my iron 6.0 to fit my alternator bracket and I'll be able to let you know Sunday if you'll have to for a 5.3, but I'm guessing you do.
and you are referring to a gen 4 block?
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Old 09-23-2016, 02:18 PM
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Originally Posted by ls1charged View Post
and you are referring to a gen 4 block?
Yeah, both my 6.0 and my 5.3 were gen 4 blocks.
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Old 09-23-2016, 02:29 PM
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if it had afm/dod, do i just get normal lifters to replace the factory ones and everything else will swap easily? will it take ls1 cam etc?
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Old 03-07-2019, 10:20 AM
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Iím getting ready to swap a gen 4 5.3 into my 2001 camaro, was wondering how the swap went for you and if you had any problems or specifics you come across. Also wondering what you did for knock sensors and valley cover. Thank you
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