[quote]
most, but not all, of the hd1500 trucks were crew cabs with 4.10 gears and a 4l80e trans and a 325 hp lq4 6.0l. tha max trucks i've seen have been a lq9 345hp 4l65e trans w/3.73 gears... the hd 1500 trucks were 2500 trucks with a 1500 name??? i cant figure out why gm did that???...... the max trucks were 1500 trucks with cadillac engins. the cads have the new 6.2l active fuel management engines at 385 hp and 22 mpg!!!! all the max trucks have the extra cad engines that were not needed by cadillac any more. all my friends that have a hd1500 get 10-12mpg. thats normal for a 8 lug 3/4 ton truck. dont be fooled by the 1500 name.
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ya but what do i need to do to make my motor like that vortec max i need tha MPG Oh and the 1500HD is 1,000Lbs lighter that the 2500HD