stroker?

Well , I'm just assuming that you will pick a "reputable" shop, and like I said, any "reputable"shop will give you some kind of warranty on their workmanship ! The KEY here is to 1: pick a reputable shop, 2: and buy quality parts ! But if they're a reputable shop, you don't have to worry,it'll be a quality shortblock package. Some shops have more than one package (or short block combination), so depending on what your going to do with the "stroker" motor , (be sure you explain to them what you intend to do with it). And sell your block . Besides, you'll be driving and having alot of fun with it alot faster. Just my opinion. Good luck with whatever you decide.