5 grand for a used engine swap? do you not know about getting estimates? i hope the second engine swap was on the house cause he made enough off you to do 4 of them.

used engine costs around 5 to 800. the labor for a swap is around 500 with fluids. unless they are flat out thieves.

theres no way to tell what block you got. unless you saw the engine before they put it in and you saw it had a gen 5 blower on it.

the engine cover is your old one if you had one.