TRExp

TR6 Tech Forum

TR6 head swap

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WillLe55lie Will Lesslie
Sydney, NSW, Australia   AUS
Hey all,

Just wondering if a Euro spec head will fit on a US spec car, has anyone tried? surely the stud patterns are the same, and should give that little extra CR

Cheers

WL

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jplatel1 jacob P
Albany, NY, USA   USA
You can just have any old head milled down to increase your compression ratio! Just make sure that it matches your intake runners because there are 2 different intake port configurations.

Lou6t4gto Lou Breslow
Ocala, FL, USA   USA
What "CC" Combustion Chamber is needed to get around 9.5-1 compression ratio ?? anyone ????

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Brett E Brett Evans
Columbus, Ohio, USA   USA
1973 Triumph TR6 "Scarlet Harlot"
I have a 73 TR6 and I swapped the head for a CR 125hp British spec head with 9.5:1 compression. The numbers on the side of the head are V3298 313248 26 21915. I also had to swap out the pushrods for the shorter versions since the U.S. spec ones are too long.

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