I have read where a T and a number cast into Ford engine blocks gives an indication of the wall thickness of the cylinders. This is on the opposite side to the dizzy and above the engine mount.
The lower the number the thicker the wall thickness, apparently.
Can anyone confirm this?
T number cast into Ford blocks
Started by
ed holly
, May 16 2007 00:29
10 replies to this topic
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#2
Ray Bell
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Posted 16 May 2007 - 00:49
Unlikely...
I've seen a number of comments about this sort of thing on the internet and they just don't make sense. Cores move and it's not until the machining begins that you can determine wall thickness, which can vary from one side of the cylinder to the other.
To suggest that they know whether the cores will move before they cast is ridiculous.
In the case of Chrysler block castings, a number such as this refers to the number of times that particular core box has been rejuvinated to counter wear, maybe this is the same for the Fords?
I've seen a number of comments about this sort of thing on the internet and they just don't make sense. Cores move and it's not until the machining begins that you can determine wall thickness, which can vary from one side of the cylinder to the other.
To suggest that they know whether the cores will move before they cast is ridiculous.
In the case of Chrysler block castings, a number such as this refers to the number of times that particular core box has been rejuvinated to counter wear, maybe this is the same for the Fords?
#3
ed holly
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Posted 16 May 2007 - 00:57
Ray, thanks.
In the past I have passed over blocks because of high T numbers, but now wonder the wisdom of doing that if in fact high T numbers in fact mean something else.
Ed
In the past I have passed over blocks because of high T numbers, but now wonder the wisdom of doing that if in fact high T numbers in fact mean something else.
Ed
#4
Ray Bell
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Posted 16 May 2007 - 01:27
I have an easy answer, Ed...
Pass over them all! I don't hold those engines in very high regard.
On the other hand, Owen might know. Ask him some time.
Pass over them all! I don't hold those engines in very high regard.
On the other hand, Owen might know. Ask him some time.
#5
soubriquet
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Posted 16 May 2007 - 03:03
Originally posted by Ray Bell
Pass over them all! I don't hold those engines in very high regard.
I am curious. Why so?
#6
Gerr
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Posted 16 May 2007 - 03:04
Ed, someone here may have an answer, but it would be helpful to know what kind of Ford block it is and any other known information.
#7
cosworth bdg
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Posted 16 May 2007 - 03:08
The T number is only applicable to original production. If you are looking for cyl blocks for historics, the only reliable check for wall thickness, is too sonic test the cylinder walls, and by the way there is nothing wrong with cylinder sleeves if fitted by engineers who know what they are doing & WHY it is being done...Originally posted by ed holly
I have read where a T and a number cast into Ford engine blocks gives an indication of the wall thickness of the cylinders. This is on the opposite side to the dizzy and above the engine mount.
The lower the number the thicker the wall thickness, apparently.
Can anyone confirm this?
#8
ed holly
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Posted 16 May 2007 - 05:22
Peter, thanks ....
when you say only applicable to original production, do you mean it was their way of identifying which casting box was used ?
And for those reading this thread wondering what on earth are we talking about ... the T number is found on 3 and 5 bearing Anglia, Cortina and Escort blocks
when you say only applicable to original production, do you mean it was their way of identifying which casting box was used ?
And for those reading this thread wondering what on earth are we talking about ... the T number is found on 3 and 5 bearing Anglia, Cortina and Escort blocks
#9
cosworth bdg
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Posted 16 May 2007 - 05:47
Ed , my answer is yes, Regards Peter N.
#10
ed holly
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Posted 17 May 2007 - 22:25
Gerr, any luck with your colleagues? The blocks are Anglia, Cortina, and Escort Kent motors.
Ray, I think you are being a bit unfair to these engines, I had a bit to do with BMC 60s engines, and when I had to learn a bit about Ford ones I was amazed at how clever Ford was. That the range FVA, BDA, T/Cam, 1600, 1500, 1200, 997, are all so closely related in the block department is incredible, although I do know the engines grew about 1/4 inch wider one one mount from 711 onwards.
Ray, I think you are being a bit unfair to these engines, I had a bit to do with BMC 60s engines, and when I had to learn a bit about Ford ones I was amazed at how clever Ford was. That the range FVA, BDA, T/Cam, 1600, 1500, 1200, 997, are all so closely related in the block department is incredible, although I do know the engines grew about 1/4 inch wider one one mount from 711 onwards.
#11
cosworth bdg
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Posted 18 May 2007 - 04:37
Yes ed, Ford were very clever with their cylinder block design in these engines, regards ,Peter N....... 
