Triumph 650 6mm valve stem conversion kit

Black Diamond 650 6mm valve and guide kit

Kibblewhite engineered and manufactures a complete 6mm valve conversion for Triumph 650 twin heads. This well designed and ultra light kit uses single "beehive" springs with titanium retainers, light weight keepers, and Black Diamond™ valves with .2350" (6mm) stems with positive Viton seals. The guides are machined for the included seals and do not need any additional machining for valve clearance, no matter how huge the cam lift is. If you are building a serious Triumph race engine or want to reduce the weight of your valve train, this once exotic conversion is now available off the shelf.

We have extensively tested this kit both in racing and street applications, with only positive results.
This kit includes:

• 2 Black Diamond™ 1.600" 6mm stem intake valves 
  

• 2 Black Diamond™ 1.440" 6mm stem exhaust valves
  

• 1 650 Beehive racing spring kit  Ti retainers & HT keepers

• 4 C630 Bronze guides with viton seals

Oversize valves and guides are available at the same price, although the guides are only available in standard (.501"), +.002 (.503"), and +.015"(.516"). Oversize valves are available in 1.660" and 1.500" only.

Lash caps are not necessary but are available if required. Please see our detailed installation instructions for more information.

Triumph 6mm valve installation instructions click here