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Some Advice On Modifying Mgb Manifold For Twin Hs4's


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#1 Klevdo2202

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Posted 23 May 2012 - 05:13 PM

Hi guys

I bought a MGB Manifold from eBay after finding out that some of you modified them so you can fit them on Minis.

Can I ask how do you go by doing this? best place to cut, etc?


Cheers

#2 L400RAS

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Posted 23 May 2012 - 05:37 PM

I rekon the manifold angle / carb face is set wrong for a mini installation? TBC.

#3 Klevdo2202

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Posted 23 May 2012 - 05:42 PM

I saw a post by BMCeccose saying he modified a MGB manifold to fit, and yes, I know about the float angles are set wrong, I've sorted that out.

#4 bmcecosse

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Posted 23 May 2012 - 05:50 PM

That was 40+ years ago.!!!..yes, I just cut a section out of the cross tube, and joined it with a rubber pipe and two jub clips.

#5 Klevdo2202

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Posted 23 May 2012 - 05:53 PM

Thanks for that =] to save taking my current carb out am I able to use the spare 998 to measure how big the manifold needs to be? or is it a different size on the 1275....if that makes any sense.

#6 03jkirk

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Posted 23 May 2012 - 06:02 PM

inlet and exshast ports are spaced the same on 1275 and 998 so you could use the 998 head to measure from

#7 Klevdo2202

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Posted 23 May 2012 - 06:05 PM

Epic, cheers! =D




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