99 Vortec Max

Newbie here on the GMT 800 forum. Looking at purchasing a 99 GMC sierra, 2500 with a 6.0 liter vortec max. I've looked around the web for a while to try and find some specifications on it but have not had any success. Does any one have or know of a place to go to see what the horsepower / torque ratings are? If I am not mistaken the Max is an engine upgrade only?
Thanks

As far as I know there’s no vortec max that year. It’s probably just a regular lq4 vortec 6.0


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It's most likely an lq4 6.0 the votec max didn't come out until 03 or so with the lq9 6.0 with the truck being a 2500 it's just a normal lq4 6.0

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