DOWNTON HEAD

BRI MK1 · Post by **BRI MK1** » Mon Sep 30, 2013 4:09 pm

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.

mk1 · Post by **mk1** » Tue Oct 01, 2013 9:25 am

I will PM you.

M

davidnutland · Post by **davidnutland** » Tue Oct 01, 2013 3:09 pm

possibly longman with a number that high

mk1 · Post by **mk1** » Tue Oct 01, 2013 3:29 pm

That's what I thought David.

Am reserving judgement until I see some pics though.

M

Post by **251 ENG** » Tue Oct 01, 2013 6:26 pm

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

They were doing 100 heads a week at there peek

newtune · Post by **newtune** » Tue Oct 01, 2013 7:09 pm

was going to say some thing ! best not

mk1 · Post by **mk1** » Tue Oct 01, 2013 7:12 pm

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

M

BRI MK1 · Post by **BRI MK1** » Tue Oct 01, 2013 8:32 pm

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.

mk1coopers · Post by **mk1coopers** » Wed Oct 02, 2013 2:38 am

BRI MK1 wrote:just one other thing about the head it has round exhaust ports rather than square.

Could it be a Vortz head?

RS6 · Post by **RS6** » Thu Oct 03, 2013 9:17 pm

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

They were doing 100 heads a week at there peek

I agree.

davidnutland · Post by **davidnutland** » Thu Oct 03, 2013 10:05 pm

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?

SteveG · Post by **SteveG** » Sat Oct 05, 2013 4:31 pm

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

They were doing 100 heads a week at there peek

If it secured them more work then fair enough I guess

mk1 · Post by **mk1** » Mon Oct 07, 2013 7:56 am

did Downton even number heads?

They certainly did.

M

mk1coopers · Post by **mk1coopers** » Thu Oct 10, 2013 12:58 pm

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?

BRI MK1 · Post by **BRI MK1** » Fri Oct 18, 2013 7:35 pm

These are the photos of my cylinder head

cylinder.jpg

BRI MK1 · Post by **BRI MK1** » Fri Oct 18, 2013 7:39 pm

cylinder.jpg

BRI MK1 · Post by **BRI MK1** » Fri Oct 18, 2013 7:40 pm

cylinder.jpg

BRI MK1 · Post by **BRI MK1** » Fri Oct 18, 2013 7:41 pm

cylinder.jpg

BRI MK1 · Post by **BRI MK1** » Fri Oct 18, 2013 7:43 pm

cylinder.jpg

mk1 · Post by **mk1** » Sat Oct 19, 2013 9:20 am

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

Excellent porting though.

M

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