Right now Coast High Performance is having a deal on their 347 GT kits for only 800 dollars. I bought mine last week. It comes with forged pistons, cast steel crank and race ready rods. It can support up to 500 hp according to them. I paid another $400 at a local machine shop to have it balanced to my 50 oz and bored out. Clearing the block for the stroker is very easy and can be done with a hand grinder and jig saw. So expect to pay between $1200 to $1300 if you can install it yourself.