LS3 Motor Question

[crtdavis]

Hello everyone, I am brand new to the forum. I recently purchase/had built a 1972 GMC SWB and the motor that came with it was a 350 SB. I have been doing some research and considering the idea of installing an LS3 motor and my questions is, is there a difference in say for example a LS3 from a 2008 Corvette compared to a 2010-15 Camaro LS3? All I have been able to notice is the motor covers are different ( which the Corvette ones look better ). I would most likely get something pulled from another car and not brand new. Do the motor covers for the Corvette motor also work for the Camaro motor? Just looking for suggestions, opinions.
Thanks