Powerplants - Van's Aircraft Total Performance RV Kit Planes
List of Lycoming O-360 variants - Wikipedia
VANS RV-4 For Sale - Used & New 1 - 3
Advice on RV-7A FWF IO-360 swap. Installation instructions call for this crank freeze plug to be removed before prop installation. Need to do some more research on it, haven't been able to
The Airplane Van Didnt Want to Build
Flight Test: Vans RV-4 G-BZPH - Pilot
Van's celebrates 10,000th plane flying — General Aviation News