5.3L swap question

[Tylerz181500]

i read this thread and it mentions that he just plopped the dang thing in with no modded motor mount, just using factory stuff? is that even possible? http://www.hotrodlane.cc/PDFFILES/mr...ls%20truck.pdf

and as far as harnesses go, ive looked into pacific fab and ls1harnesses.com, anyone have any other suggestions for a new harness? i can redo a stock one but id rather not.

also doesnt ls require vss? so id have to tap my np205 for vss signal right? i was gonna try to keep the th350/205 for now unless i can find a good deal on a 5.3/80e and adpater the 205 to it.

Lastly, anyone know the measurememnt between frame rails off hand for a 4x4 72? i guess i could google 72 blazer tank dimensions, my buddies parting out his 93 yukon i was gonna try to snatch the tank and adapt it and put a supporting fuel pump for the LS in it.