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Discussion Starter #1
My first question here, probably simple as I'm a noob.
Does a TR5 Trophy 500cc alloy head(year unknown) fit my 5T Speed twin 1952?

Cheers
Mike
 

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It might fit if you use 2 head gaskets.I think you'll find the spigot at the top of the iron barrel is 3/16" high,but only 1/8" high on the aluminium T100 barrel (which fits the aluminum head).
After engine number 70930,all spigots were 1/8" high.
 

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Discussion Starter #4
Thanks for the info, I was thinking it would be a good swap in order to get rid of the led replacement stuff, but since my bike is "customized" by previous owner I don't know if I'll just end up with a expensive door stop . For example I got two 376/42 Amal carbs on the bike I need to replace due to one of them is all worn out but this is material for a new thread
 

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If you're worried about valve seat recession, why not just wait until it starts to show, then have new seats fitted?

It doesn't happen overnight
 
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