a fool and his money
02-12-2014, 10:36 AM
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a fool and his money I just purchased a 1999 4.8 under the impression it was a 06 5.3. anyhow i found a 2000 5.3 long block and was wondering if a can make this work with the pats I have? pcm intake fuel-rails, coils, etc. or even if I have to swap crank and rods. is this doable? Also before I pick it up will the 5.3 be stamped on the pass side head-gasket tab? if anything i can hone and put new rings in it if the accessories will swap over.
03-02-2014, 11:24 AM
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Are you wanting to put the parts from the 5.3 longblock into the 4.8? If so then yes you'll need to swap the crank, as 4.8s have a unique crank. All accessories, intake etc should swap right over I believe.
I'd imagine if its a 4.8 PCM, you'd need it flashed torun optimally. May still run, others can chime in. I've seen a 5.3 swapped in place of an Ls1 and it ran on the 5.7 PCM (though somewhat poorly).
I'd imagine if its a 4.8 PCM, you'd need it flashed torun optimally. May still run, others can chime in. I've seen a 5.3 swapped in place of an Ls1 and it ran on the 5.7 PCM (though somewhat poorly).