Triumph 650 TR6 Tiger Trophy 9-Stud Cylinder Head 1963-72 PN# 70-9345 E9345


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Available in limited quantities for the first time in decades!

The Bonneville Shop is pleased to offer new 9-stud cylinder heads for Triumph 650 twins by LF Harris. Made with new castings based on the 1969-72 single carb TR6 head, this cylinder head is  is correct for 1969-72 Triumph 650 twins but can also be fitted to 1963-67 Triumph 650 9-stud twins when the correct tappet guide blocks, pushrod tubes & seals are used. These can also be fitted to many pre-unit Triumph twins when a 9 stud cylinder is also used. Suitable to replace excessively worn TR6 heads, & perfect for anyone wanting to simplify tuning by fitting a single carburetor on their Bonneville 650. This head comes fitted with cast iron valve guides, just lap in the valves of your choice and assemble from there. UK made for us in very limited quantities, why take chances on a used cylinder head when you can have new for a few dollars more?!

This head is suitable to be used to replace the following part numbers: 70-9345 E9345 70-4552 E4552 70-4928 E4928 70-5348 E5348 70-7031 E7031

Also available with valves & springs, see recommended links.


LF Harris motorcycle spares are produced to the highest quality standards possible utilizing original Triumph tooling, dies, factory blueprints & materials combined with modern manufacturing equipment, tolerances & techniques.

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