Wouldn't a stroker kit from crower be something like a B18 crank? What about that eagle kit I see all the time on Ebay? It's like a grand less than crower? Also, if I did bore/sleeve it what company makes sleeves and how far can I bore a B16?
or you could just get a LS block for like 300 bucks and get more torque and reliability vs. a 700 dollar crank, 1000 dollar sleeve kit, 1500 for custom bore pistons and rods, ect. There is a reason people hardly ever do this.