Alpine III GT Stock Exhaust Manifold

[twautomotive]

There is a guy on Ebay selling this manifold as being for a Series III GT? It is not in the Alpine parts book. Does anyone know what this fits? Note the extra ports on top in the first picture.

Thanks.
Tom​

Thanks.
Tom

 

[alpine_64]

Not series alpine. Looks like a later slant mounted arrow series part.

 

[65beam]

It's the exhaust manifold for the fastback Alpine GT sold in the U.S. This was for the 1725 with the aluminum head and twin side draft Stromberg SDE emission carbs. The intake manifold bolts to the top of this exhaust manifold with a copper gasket between the two manifolds. This photo of my car shows the set up.

 

[twautomotive]

Thanks for the explanation. Very, very nice engine and bay!

 

[65beam]

Thanks for the explanation. Very, very nice engine and bay!

Thanks! The strange thing about the carbs is that there are no mixture adjustments on them. Just idle after they are synced.

 

[sunalp]

Bob,
Who did the polishing on the valve cover? Been looking for a good polisher for years!
Thanks!
Steve

 

[65beam]

Bob,
Who did the polishing on the valve cover? Been looking for a good polisher for years!
Thanks!
Steve

LiBramdi's , Harrisburg Pa. I use them for all plating and polishing.

 

[sunalp]

That's great! I'll be visiting them sometime in the next few months for some chrome work.
I'll get the valve cover done then as well.
Thanks again!
Steve

 

[moonstone SIV]

Thanks! The strange thing about the carbs is that there are no mixture adjustments on them. Just idle after they are synced.

Of course the mixture is adjustable...it's done with a tool through the dashpot orifice. All emission spec CD's are the same.

 

[65beam]

Of course the mixture is adjustable...it's done with a tool through the dashpot orifice. All emission spec CD's are the same.

Maybe I should have said that on the 150 CDSE carbs used on U.S. spec Alpine GT ( They were not a Rapier in the U.S. and had a different set of carbs along with other differences) there is not an external jet adjustment on the bottom of the fuel bowl as per U.S. spec series 5 carbs. Hope that clarifies this. I followed the instructions to syncro the carbs and set the idle and since I restored this car in 2008 I have never done anything but to top the oil in the carbs. Any one that has followed me thru the mountains or level land can verify that it's just like the Ever Ready bunny. It just keeps going and going.