Fastback Friday: This '66 VW hides a fast secret in the back


Usually, when you lift the engine cover on the butt end of a Volkswagen Type 3 you’re going to find a 1.5 or 1.6-liter flat four-cylinder engine. That’s not the case with this example I just found on good ole California Craigslist.
Someone stuffed a 4.3-liter Vortec V6 into the tail, and that’s a recipe for a fair bit more shove. In fact, it’s likely doubled the output over the original engine.


The seller states that the car sounds off through a set of Flowmaster exhaust, which in turn is a bit funny to hear of any VW wearing Flowmasters. The interior seems to be in relatively decent shape, but the ad goes on to state that the car needs a little TLC to make it “a sweet ride”.
With an asking price of $5,500 you can color me …curious. But the green paint certainly shows well in the photos. Having a VW Fastback that’s actually fast might be fun too.
[Source: Craiglist]

13 Comments

  1. I guess if that’s what you have laying around, that’s what you go with. As the former operator of a 4.3L V6 in a full sized pickup, my impression of the engine was that it moved the vehicle, but it was best not to think about it much.
    Obviously a subjective thing, but the split pin crank 90 degree V6’s sound awful to my ear, Flowmasters would not make it better.

    1. Yeah “a little TLC” could mean it needs major work. I’m betting it has the stock VW transaxle and stock brakes. In CA I’m betting it doesn’t have a heater. Of course the weight bias is bad if you want it to go around the corner but where this would shine is as a sleeper drag car. Of course you’d want to get rid of the Flowmasters if you don’t want to tip off your victim.

  2. I used to have a 412, and I always thought about putting a modern flat six of some kind in there. Don’t think I would have thrown a water cooled V6 in it though. Even in stock form the front is too light. With that modification, it probably would push like crazy in any kind of a turn.

    1. I doubt it. the 4.3L is known as 3/4 of a small block V-8. In my 2011 Silverado WT the 4.3L offers the fuel economy of a V-8 with the power of an I-4.

      1. Of course. I was thinking of the capacity variants of the Buick engine that turn out to be from the very early days.
        Now GM does offer a 4-cyl in the full size pickups I wonder how the cliche will evolve!

    1. Because you have a 4.3L laying around, because whatever the 4.3L originally came in now has a proper 350 small block V-8.

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