However, like its LS9 counterpart, LSA crate engines — along with suitable junkyard specimens — are becoming more difficult to source, while the LT4 is still available from Chevrolet.

The LSA V8 was originally available in CTS-V sedans ... In the absence of a ZR1 or CTS-V donor, Chevrolet still offers the LS9 as a factory crate engine. It's currently listed at an MSRP of ...