Solved - NEH 1606: Cooper T-4 1947 as lengthened and fitted with Jowett Bradford engine 1950s

[Carnut]

What's this car and what powers it - for 1 point?

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[Carnut]

Experts?

[bentleybob]

Cooper T-4? Triumph twin engine? 1947?

[Carnut]

It's not that car, but it is a Cooper..

[bentleybob]

John Potts,Cooper T4, 500c ,1947...it even has the same registration number...are you sure?

[Carnut]

It does have the same registration and it is T-4 from 1947.
But is that the same car as your first picture?
Certainly the door line on the puzzle car is different, but of course down the years it may well have been changed.
If you can investigate the history of the T-4 then you should get to the answer of my puzzle and be able to tell me its motive power.
Compare the length of my puzzle with the second picture you posted (of T-4 now returned to original as-built specification), particularly around the cockpit area..

[bentleybob]

Jowett engine, not yet returned to Triumph engine?

[Carnut]

Jowett engine, not yet returned to Triumph engine?

That's it!
Well done.

[Carnut]

Thanks!
There is actually another thread for the original one.
The puzzle car here was the same car but in a different (temporary) guise!

[Ray B.]

Thanks!
There is actually another thread for the original one.
The puzzle car here was the same car but in a different (temporary) guise!

This thread I guess... http://www.autopuzzles.com/forum/index.php?topic=3431.0;topicseen
It does have the same period pic in better quality.