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Post-War Other Triumph Herald Engine ID

Paul Romans

Freshman Member
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Recently picked up a '63 Herald 1200. Groovy little car, but the engine S/N says it's an earlier 948cc engine, not the 1200. Short of pulling the head and measuring it, I can't think of any other way to find out. Any thoughts?

Paul R.

Andrew Mace

Staff member
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The engine serial number pretty much says it all. If the prefix is G, it was a single-carb 948. If it is Y, it was a dual-carb 948. I don't think it was possible to bore out a 948cc to 1147cc, as the bore spacing changed slightly between the two engines.

Paul Romans

Freshman Member
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S/N is Y20920HE. It has a single Solex downdraught carb on it now, so looks like several changes have been made over the decades. Many thanks!
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