H4 SU Carb with air cleaner

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philthehill
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H4 SU Carb with air cleaner

Postby philthehill » Fri Feb 12, 2021 7:56 pm

May be of interest.
A good period mod. I had a single H4 SU carb on my 948cc engine way back and it went well. A worthwhile improvement. With a benefit of a period air cleaner as well. The H4 installed on my Minor was coupled to a Janspeed fabricated inlet manifold. Similar inlet manifold is available from Maniflow.
https://www.ebay.co.uk/itm/Riley-1-5-SU ... SwLYRgIELd


Bigrob
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Re: H4 SU Carb with air cleaner

Postby Bigrob » Fri Feb 12, 2021 10:24 pm

A good price. This wont fit a standard diagonal mount inlet will it?

Would an adapter need making up?

Also am I right in thinking these were fitted as a pair to the works Cooper S cars?

If so would a single have much significance on 1098?
1968 Trafalgar Blue 2 door- Pig
1970 Met Police 2 door- Panda

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philthehill
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Re: H4 SU Carb with air cleaner

Postby philthehill » Fri Feb 12, 2021 10:39 pm

To me it is currently a very good price.
You would have to make a diagonal adapter mount to fit this to a diagonal inlet manifold but the Maniflow manifold is suitable for the H4.
https://www.maniflow.co.uk/index.php?vi ... oduct=1098
They were fitted to the works Cooper 'S' as a pair.
A couple of years back I sold a pair of H4s on a Cooper 'S' inlet manifold. I should have kept them. :roll:
The single H4 will make a difference to a 1098cc engine.


Bigrob
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Re: H4 SU Carb with air cleaner

Postby Bigrob » Fri Feb 12, 2021 10:57 pm

Thanks Phil.

I think I'd make a plate for that price. I've got a nice Oselli inlet somewhere...

I saw the prices the twins are fetching now, I can't believe it really.
1968 Trafalgar Blue 2 door- Pig
1970 Met Police 2 door- Panda

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philthehill
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Re: H4 SU Carb with air cleaner

Postby philthehill » Fri Feb 12, 2021 11:08 pm

Some alloy manifolds have the two bosses for the H4 carb mount studs but are not drilled and tapped.
https://www.ebay.co.uk/itm/classic-car- ... SwnR5gHWiN


Bigrob
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Re: H4 SU Carb with air cleaner

Postby Bigrob » Fri Feb 12, 2021 11:34 pm

Oh I see what you mean. I have seen that before on a Peco unit that once passed through my hands, I did wonder at the time what the 'nubs' were for
1968 Trafalgar Blue 2 door- Pig
1970 Met Police 2 door- Panda


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