Came across these twin turbo Chevrolet 409's from the 60's in a nearby shop. Talk about being ahead of the times. I was told these two were the only two in existence and were used to power a boat that set the record from Miami to NY (maybe in the 60/70's?) that stood for years. Anyone remember anything about the boat or these motors? Cool piece of history

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Never heard of that before although Turbo's have been around for a long time, interesting find.

Cool find, any idea what boat?

Cool find. Whose shop were they in? 409 could be Walden's.

Possibly the engines from Beachams houseboat.

How would that work, the 2 turbochargers look like they go to a hat (assume a carb is in there), but also go to the under side of another carb. Wouldn't boost just blow out through the front carb? Am I missing something?

Mr Marine - the two turbos suck air through the carb located between the two turbochargers. The air/fuel mixture is then compressed by the turbo and forced into the manifold through the hat you make reference to.

What amazes me here is that someone made castings to go from an old Crusader type manifold to the turbochargers which tells me someone was going to try and mass produce these, why else would you do castings if you were only going to do a few race engines, someone had bigger plans when they laid this out.

Habana Joe,
Ahhhh, Thanks, I see it now, just looked weird at first. Always cool to see 409s in any application....

way cool, there was a bbq wing joint in my area that had an all aluminum 409 dual quad motor on display in the restaurant that was supposedly one of one (or so I was told). seems like those ought'a be on display some where to

Good eyes DM, saw it at LWA today when I was picking up my motor