Kibblewhite racing tappet guide blocks are the best you can get for your Triumph motorcycle. 
These are made in the USA from mill certified C630 bronze and are designed to accept up to .500" cam lift without modification!

Don't be confused by douchey ebay sellers that sell single tappet blocks, 
this auction is for a PAIR.

Don't be tempted to use aluminum tappet blocks with big cams as they will not last long.

PLEASE NOTE
Modification of the upper body diameter must be done to fit all pre 1968 Triumph twins.
Please see our extensive installation notes 




Valves, Spring kits, retainers, and keepers are also available for stock, performance, or racing applications.
Our intimate knowledge of camshafts and valve train, as well as our practical experience of using these in our engines 
have proudly made us the number one dealer for Kibblewhite Triumph parts in the USA.  
We ship worldwide and can answer any questions you may have, no matter how technical in nature.