3.9 Stroker

At one time these guys StrokerKits.com | The original stroker kit source for street and strip racers. "Take It Out & Get It Stroked" offered a 3.9 stroker kit, but I don't see it listed anymore.
http://strokerkits.com/3_9_chrysler_stroker.htm that I had saved now seems to be a dead link.
A quick phone call could tell you if they may have any laying around in some dark dusty corner...
A four inch arm and .030 over should get you around 4.8l...