Simple answer is no, the stem length is wrong. While the valve head
diameter is the same betwen a late TR6 and a post 75 1500 head so the
same unleaded insert can be used, the stem length of a six cylinder
valve is always longer than a four. If desperate I suspect TR6 valves
could be fitted to a four cylinder head by shortening teh stem and
remachining the collet groove, things like collets, retainers and valve
springs are all interchangeable.
John Kipping.
Terry And Cindy wrote:
>Can anyone confirm that TR6 valves, springs & retainers can be fitted to US
>market Spit 1500 head. I know valve head sizes are a bit bigger, but not
>sure about valve stem length, and I don't have a sample 1500 valve to hand.
>Thanks
>Terry O'Beirne
>
>
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