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PostPosted: Mon Mar 19, 2018 12:30 am 
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For class racing and rallying, 1000 had to be built to qualify for homologation, the never got that produced, or even 1000 units for the 970!

They may not have built a thousand 970S cars but they did build over a thousand engines.

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PostPosted: Mon Mar 19, 2018 9:51 am 
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Well I guess you can ad one more. Flat front (around oil pressure valve), 1070 on back of block.

+ original shell (inc doors, boot.. original bonnet has large imprint with a marsupial shape :(, 190 gearbox, brakes, carbs, exhaust, trim (minus front floor carpet), instruments....

Now I just have to get it back on the road...

Cheers, Ian’s


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PostPosted: Mon Mar 19, 2018 3:54 pm 
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Were S engines built at Longbridge? I ask because the cranks were nitrided by Rolls Royce - I knew an old boy years ago who remembers them being nitrided and finished there. Rolls were apparently the only place in the Uk that could do this as they used EN40B for the 6.25 V8 cranks. The S engine must have cost a fortune to make.


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PostPosted: Mon Mar 19, 2018 6:16 pm 
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S engines were built at Morris Engines in Coventry

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PostPosted: Mon Mar 19, 2018 6:58 pm 
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Simon776 wrote:
S engines were built at Morris Engines in Coventry


Thanks!


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PostPosted: Mon Mar 19, 2018 9:29 pm 
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Costafortune wrote:
Were S engines built at Longbridge? I ask because the cranks were nitrided by Rolls Royce - I knew an old boy years ago who remembers them being nitrided and finished there. Rolls were apparently the only place in the Uk that could do this as they used EN40B for the 6.25 V8 cranks. The S engine must have cost a fortune to make.


(Rolls were apparently the only place in the UK that could do this ) Google search, please read " Grace's Guide to British industrial History ", Ambrose Shardlow & co : By David Price , Sheffield based Shardlows , Crankshaft manufacturers world Wide , Made Crankshafts for Rolls Royce and Nitride hardened them!!!! , Paragraph World War 11 , A new department was created for " nitriding " The special hardening of crankshafts for RR Merlin ,Napier Sabre engines ,
Well worth reading about about Shardlows , Still going today Italian owned .


Last edited by goff on Tue Mar 20, 2018 9:49 am, edited 2 times in total.

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PostPosted: Mon Mar 19, 2018 9:30 pm 
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david1964 wrote:
For class racing and rallying, 1000 had to be built to qualify for homologation, the never got that produced , or even 1000 units for the 970!


At that time it was "provisions for" the production of 1000 (for both Group1 and Group2 up to 31.12.65.) rather than checking that 1000 had actually been built. The FIA never fully defined what that meant and it may sometimes have been internal factory orders for components. The RAC of course stamped the papers for the FIA then and no FIA inspectors visited the factory as happened much later on. What worried works teams managers was when hardly any cars had been actually produced some time after homologation, thus risking its withdrawal. That worried Turner with the 970 initially.


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PostPosted: Mon Mar 19, 2018 9:33 pm 
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goff wrote:
crankshafts for RR Merlin ,Napier and Sabre engines


Napier Sabre was one engine not two (used in Typhoon and Tempest).


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PostPosted: Mon Mar 19, 2018 9:40 pm 
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LMM76C wrote:
goff wrote:
crankshafts for RR Merlin ,Napier and Sabre engines


Napier Sabre was one engine not two (used in Typhoon and Tempest).


That's right .Just corrected it , Thanks


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PostPosted: Tue Mar 20, 2018 10:15 pm 
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Joined: Thu Jul 12, 2012 5:18 pm
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251 ENG wrote:
Well the highest cap/block number I,be seen is C1416 and I,ve seen at least 10 very early ones with no numbers on them so I would say that's complete rubbish .

Some of the early 970,s used them so that would mean 80 blocks lasted approximately 18 months

Just checked mine and it’s C682?


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