DOWNTON HEAD

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BRI MK1
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DOWNTON HEAD

Post by BRI MK1 »

pulled this head out today I think it is a downton head has numbers just above heater vale 1013 then 0 . 70 then 16.5 the inlet valves are 35m the exhaust valves are 31m the head looks very nice and does not look as if it has been used much as I cleaned it today and it almost looks new it is a 12g940,s head.i know there are a few downton experts on here just wondering if they could tell me if it is dowton and when it was built cheers Brian.
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Re: DOWNTON HEAD

Post by mk1 »

I will PM you.

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davidnutland
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Re: DOWNTON HEAD

Post by davidnutland »

possibly longman with a number that high
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Re: DOWNTON HEAD

Post by mk1 »

That's what I thought David.

Am reserving judgement until I see some pics though.

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251 ENG
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Re: DOWNTON HEAD

Post by 251 ENG »

Thats not a high number , i,ve seen 3000+ :geek:

They were doing 100 heads a week at there peek :o
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newtune
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Re: DOWNTON HEAD

Post by newtune »

was going to say some thing ! best not :lol:
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Re: DOWNTON HEAD

Post by mk1 »

Thats right, I reckon that 940's should start at about 2800 - 3000

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BRI MK1
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Re: DOWNTON HEAD

Post by BRI MK1 »

I will take some pictures in the next couple of days, just one other thing about the head it has round exhaust ports rather than square.
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mk1coopers
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Re: DOWNTON HEAD

Post by mk1coopers »

BRI MK1 wrote:just one other thing about the head it has round exhaust ports rather than square.
Could it be a Vortz head?
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RS6
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Re: DOWNTON HEAD

Post by RS6 »

251 ENG wrote:Thats not a high number , i,ve seen 3000+ :geek:

They were doing 100 heads a week at there peek :o
I agree.
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davidnutland
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Re: DOWNTON HEAD

Post by davidnutland »

I have three Longman heads, the numbers are 600ish, 700ish and 1100ish, in my case I know they are Longman as they are in Richards little black book, did Downton even number heads? I have a 12G940 that is very similar to the Longman heads but is not numbered, it has the cc and skim amount in the correct place and style, any
thoughts?
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SteveG
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Re: DOWNTON HEAD

Post by SteveG »

251 ENG wrote:Thats not a high number , i,ve seen 3000+ :geek:

They were doing 100 heads a week at there peek :o
If it secured them more work then fair enough I guess :roll:
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Re: DOWNTON HEAD

Post by mk1 »

did Downton even number heads?

They certainly did.

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mk1coopers
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Re: DOWNTON HEAD

Post by mk1coopers »

I've checked my Vortz head and that has round exhaust ports and a number in the 1000's, have you got any pictures of yours?
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BRI MK1
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Re: DOWNTON HEAD

Post by BRI MK1 »

These are the photos of my cylinder head
cylinder.jpg
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BRI MK1
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Re: DOWNTON HEAD

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cylinder.jpg
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BRI MK1
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Re: DOWNTON HEAD

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BRI MK1
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Re: DOWNTON HEAD

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BRI MK1
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Re: DOWNTON HEAD

Post by BRI MK1 »

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Re: DOWNTON HEAD

Post by mk1 »

Judging by the stamps I would say not Downton or Longman, Vortz is a strong possibility.

Excellent porting though.

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