Inherited a 2012 Caprice with a L77, low miles
 

Can anyone tell me what motors have interchangeable parts(heads intake,etc) with this L77. Car has 11,000 miles and I'd like to use it in a 69 Impala I'm building. I know I have to do a DOD delete, but I have access to some Ls2, and Ls3 parts
Any help would be appreciated