...however, the wing kits are new, and are available in two types: new and retro-fit. Builders also will have a choice between standard and QuickBuild wings, regardless if for a new project or retrofitting to an existing plane.
The difference between new and retro-fit spars is that some holes are left un-drilled in the retro-fit version so they may be matched to holes in the existing structure. Retro-fitting will mean removing the current fuselage center section and replacing it with the new one. While this may sound like major surgery, it is actually easier than trying to drill a spar accurately to a center section in an existing airplane.
Van's Aircraft will offer substantial discounts to those who are purchasing the retrofit wing versions for an existing RV-3 project or flying aircraft.