S2 matching numbers block & cylinder head

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Wilder
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#1 S2 matching numbers block & cylinder head

Post by Wilder » Tue Jan 08, 2019 7:32 pm

I believe at some point during S2 production, that jaguar stopped stamping the engine number into the cylinder head.
Does anyone know when this happened?
I cannot find the number on my car which is an OTS from 10/69
Any help or photos where to look would be appreciated.
:bigrin:
Jonathan K
S1 1962 FHC and 1969 S2 OTS

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PeterCrespin
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#2 Re: S2 matching numbers block & cylinder head

Post by PeterCrespin » Thu Jan 10, 2019 2:04 am

I think it was during late 67 that they switched to bare aluminium un-numbered heads for the 68 models. The engine number stayed above the oil filter for a bit longer before migrating to the left upper bell housing flange.
1E75339 UberLynx D-Type; 1R27190 70 FHC; 1E78478; 79 S2 XJ12L; 97 XJ6L

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sk99
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#3 Re: S2 matching numbers block & cylinder head

Post by sk99 » Thu Jan 10, 2019 10:01 am

My FHC built in october -67, has no stamped engine number on the head.

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Heuer
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#4 Re: S2 matching numbers block & cylinder head

Post by Heuer » Thu Jan 10, 2019 1:27 pm

There is no published date when they stopped stamping the heads. I don't believe it necessarily coincided with a change in part number or head colour though.
David Jones
S1 OTS OSB; S1 FHC ODB

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Wilder
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#5 Re: S2 matching numbers block & cylinder head

Post by Wilder » Fri Jan 11, 2019 5:10 pm

Well here is one to file for future reference. I think you all may find it really interesting.

Dear Jonathan

Thank you for your enquiry regarding:

Whether a USA specification Jaguar E type S2 (4.2) from October 1969 would have left the factory with the engine number stamped into the cylinder head.

Thank you for confirming that your vehicle is a S2 E-type and supplying the chassis number: 1R 10***; and engine number: 7R 70**-9.

I can confirm the following. During Series 2 E-type production, from engine numbers 7R 6306 and 7R 38106 the location of the stamped in engine number was moved to the rear of the left-hand side of the block, on the flange of the bell-housing, and cylinder head was no longer stamped with the engine number.



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Jonathan K
S1 1962 FHC and 1969 S2 OTS

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johnetype
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#6 Re: S2 matching numbers block & cylinder head

Post by johnetype » Sun Jan 13, 2019 8:05 pm

Yes but that doesn't mean they hadn't stopped stamping the number onto the cylinder head before then.

I believe 7R6306 was produced around August '69 (Porter).
John

1969 Series 2 FHC

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Wilder
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#7 Re: S2 matching numbers block & cylinder head

Post by Wilder » Sun Jan 13, 2019 8:53 pm

My car was built Oct 1969 with the engine number on the bellhousing flange, and so am in the clear.. :bigrin:
Jonathan K
S1 1962 FHC and 1969 S2 OTS

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mgcjag
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#8 Re: S2 matching numbers block & cylinder head

Post by mgcjag » Tue Jan 15, 2019 12:22 pm

Just to add an Aug 1969 service bulletin (in knowledge base) confirms engine number moved to left side of engine from engine No 7R6306 & 7R38106......no mention on number on head.......Steve
Steve
1969 S2 2+2 & Building a C type replica

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