ls1charged

iTrader: (8)

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

JoeNova

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.

Deeohgie69

iTrader: (3)

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.

ls1charged

iTrader: (8)

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?

ls1charged

iTrader: (8)

and you are referring to a gen 4 block?

Deeohgie69

iTrader: (3)

Yeah, both my 6.0 and my 5.3 were gen 4 blocks.

ls1charged

iTrader: (8)

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?

Shaunk22