Many engine component suppliers provide stroker kits with everything you need. Most use a 400 cid crank which has a 3.75 stroke instead of a 3.48. The main bores need to be overbored to fit the bigger crank journals. I suggest getting some car books if you do it yourself or talk to a qualified engine builder. Good luck!
Here’s a link that may be helpful:
http://www.enginebuildermag.com/Article/4125/stroker_tips_from_the_pros.aspx
–Brendan Baker
Senior Editor, Engine Builder magazine