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Weber Manifold Help

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I recently bought a weber manifold for a 240z L24 but I'm not sure whether it was made for 40 or 45 dcoe.

 

I measured the "C" value (in the attached photo) at 4.6 cm. Does that indicate it was made for a 45 dcoe? I dont have any carburetors to compare the diameters for the two and couldnt find anything online.

 

On the producers website they have a kit listed for 40 and separately one for 45 so I am guessing they are somehow different

 

Any help in finding out which carb fits the manifold is greatly appreciated!

post-41184-0-83415000-1401576028_thumb.jpg

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To the OP, if it helps, I measured a spare intake to carb gasket, and it measured 40-41mm-ish. I recall when I installed my carbs, the gasket fit closely for both intake and carb diameters. So if your intake manifold measures 46mm (4.6cm), I would assume yes, it was meant for a 45 DCOE.

 

Interestingly, I had always thought that there was not a 45 dcoe specific manifold for the L-series, and that it was expected that the owner would port match accordingly.

 

Where did you get the manifold from?

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Thanks for the information, I was hoping to install 40DCOE on my engine.. So this is bad news. 

 

The manifold is made by Mangoletsi, it appears to be a very well made part. The linkages are already installed and it has the option of wire or standard rod type throttle connection

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