I think so , on the "another grand" , at least. I have been digging through stuff, would love to just "buy" one and drop it in, but you still need an oil pan I presume, along with fuel and exhaust partriculars. Spending that on one of them , I would want to go the whole route with new stuff.The lure of getting a nice clean, fully rebuilt and warrentied engine looks appealing. I am trying to find out shipping, if there core charge is $300 and shipping is more, ( I am in upstate NY ) , I wouldn't bother sending back a core.........the 5.7 is a bit cheaper and still plenty of punch. My 304 is less than 200hp. !!!