I have bought 2 crate motors from Chev in the past yr. The cheapest I could find at the time was $1295. They required a core(they all do know). W/o the core $200 more + 150 shipping that adds up to $1645.
They do have a warranty but, if you put the engine in a car that was not STOCK for that particulate engie the warranty is void.

Still a good deal tho....especially the higher HP ones.
Don