GMT 400 frame strength for 900 HP street truck

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richincanada

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Hey folks
I am looking at doing an LQ4 (6.0L) - 4L80 - 4wd -76mm TURBO setup in a 95-99 2 door Tahoe. Should make 900ish HP, and be capable of 9 sec passes. I've been told that the GMT400 frame is inferior to the gmt800 and that it needs to be 'boxed' for high hp builds. Any input, advice, experiences or suggestions would be very much appreciated !
Thank You :)
 
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