I was hoping someone out there could help me with a question on a new vehicle I bought. I've been looking over some performance information and there are questions as to which engine type I have and I'm obviously too ignorant to figure it out myself. I have a 2010 Silverado 2500HD with the 6.0L Vortec but the questions I'm seeing are looking for info like "Gen IV, or LS1" and I can't seem to find which I have. Any help would be great. Thanks ahead of time.

 

There are two 6.0L engine options for the 2500HD Silverado for 2010. One requires the pickup box to be on the vehicle and the other requires it to be deleted from the vehicle. Neither of them are LS1 engines. The two engines that I see are the L96 (with) and the LY6 (without). I hope this information helps you.

Jeff Morris, Chevrolet Customer Service