SDuster11 Posted July 30, 2011 Report Share Posted July 30, 2011 Does anyone know what the difference is between these two motors to achieve the different hp/tq #'s? I know thee 6.2 has a larger bore than the 6.0 but they share the same stroke creating the 376 c.i. vs 364 c.i. I also know the 6.2 has a higher compression ratio but don't know if this is due to the pistons or different heads. Do they share the same heads? Intake manifold? Throttle Body? Cam? Does VVT have any affect on this? What I am ultimately looking at is can I swap any of my L76 parts with any L9H or L92 parts to increase the hp/torque? Quote Link to comment Share on other sites More sharing options...
Bad Bowtie Posted August 1, 2011 Report Share Posted August 1, 2011 (edited) The heads and intake are different/better on the new 6.2L. They have better flow #'s. I'm sure the cams are different too.... Someone else will chime in for more info I'm sure (who has done the swap). The 6.2L dosen't even come with that AFM system (cylinder deactivation). Edited August 1, 2011 by Bad Bowtie (see edit history) Quote Link to comment Share on other sites More sharing options...
zpaucoin Posted August 8, 2011 Report Share Posted August 8, 2011 (edited) I too am curious to find out more about the differences. I just bought my dad's 08 MAX and he ordered a 2011 Sierra 6.2 and we were trying to find out what the upgrades are to make that significant jump in HP. Also, is the L9H the truck engine and the L92 the SUV engine? (I thought it was L94, different years?) Edited August 8, 2011 by VortecZax (see edit history) Quote Link to comment Share on other sites More sharing options...
chawkins6789 Posted April 12, 2012 Report Share Posted April 12, 2012 SUV 6.2's have cyl deactivation Quote Link to comment Share on other sites More sharing options...
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