5.3 to LS1 Swap
05-11-2013, 08:36 PM
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5.3 to LS1 Swap 
I know this question has probably been answered 10,000 times but I just want a straight up answer. I have intentions on buying a 99-02 silverado z71 with a busted motor but a fresh transmission. I have a LS1 out of a 2004 GTO laying around(long story lol) what do i have to do to put the ls1 into the truck?
Thanks
