SIERRA JEFF

Thanks for the information I will use it while learning what mods the truck will get next. GMCMAN6000 is right with only 3500 miles on the odometer the truck is weak in stock tune. I came from a 96 5.7L with a powerdyne ,a programer , and 3.73 and that truck felt like it would have outrun my new stock one. But know the fun of building another better truck begins, thanks again jeff

sorry about the caps lock. The cover on the motor only reads vortec there is no max lettering on the motor. only on the door and the window sticker. the emision sticker says 6.0L but 2 lines down this is printed " 8gmxto6.2382 " I did look in the glove box and found the L76 in the option sticker. thanks jeff

THIS IS MY FIRST POST ON THIS SITE SO THIS QUESTION MIGHT HAVE ALREADT BEEN AWNSERED BUT I DIDN'T FIND. MY 08 GMC MAX WAS ORDERED WITH A 6.0L BUT MY QUESTION IS THE BLOCK IS ALUMINUM NOT STEEL. WHAT I CAN FIND SAYS THEY OFFERED A 5.3 AND A 6.2 ALUMINUM BUT I CAN'T FIND INFO ON A 6.0L ALUMINUM MOTOR. THE TRUCK IS A CREW CAB 4X4 SLT IF THIS MAKES ANY DIFFERNCE. ANY HELP WOULD BE APPERICATED THANKS