The Better Half VW Engine has gone under some revision since the original 1993 version. A number of improvements have been made, that result in greater power, reliability in the dual carbs, and other changes that have reduced the complexity of building. Here are a number of photos of the new engine. The plans that you will receive are for this version of the engine, the only version currently recommended for the aircraft. The current design provides roughly 30 HP, and will cost between $1,500 and $3,000 depending on your scrounging ability.
Somewhere between 450 and 600 of these engine conversions have been built and are flying today... Including dozens on flying Legal Eagles , many featured at Oshkosh.