Performance 7mm Valve Guide
and Spring Sets
The Ultimate Valvetrain kit, from BCS:
Lighten up your valve train and increase flow for more performance, with these complete kits made in the the USA by Kibblewhite Precision Machining and stocked by British Cycle Supply! Take advantage of our high performance Megacycle cam's extra lift and duration by adding these matched components, and feel your Triumph fly.
Valves are available in Black Diamond impregnated stainless steel, or Tensilite Titanium, and collars are available in alloy or titanium. How fast do you want to go? Decide how much you want to spend!
462-20 7mm Valve Guide and Spring Set
To Convert Triumph 650/750 Unit Twins
to 7mm Performance Setup
Contents:
1) 2 Intake Tensilite Titanium Valves (1.600" head diameter; 0.2745" stem
diameter; 23 degree tulip profile; 3.800" overall length)
2 ) 2 Exhaust Tensilite Titanium Valves (1.440" head diameter; 0.2745" stem
diameter; 29 degree tulip profile; 3.730" overall length)
3) Valves are shortened for use with lash caps; included in kit.
4) Valve Guides
5) Intake Seals
6) Spring Set (Titanium retainers; H.T. Steel keepers; Chrome-Silicon springs;
H.T Steel lower collars)
Note: 0.500 valve lift OK.
462-21 7mm Valve Guide and
Spring Set
To Convert Triumph 500 Unit Twins to
7mm Performance Setup
Contents:
1) 2 Intake Black Diamond Valves (1.540" head diameter; 0.2745" stem
diameter; 23 degree tulip profile; 3.480" overall length)
2 ) 2 Exhaust Black Diamond Valves (1.320" head diameter; 0.2745" stem diameter;
23 degree tulip profile; 3.425" overall length)
Valves have welded tips; lash caps not required.
3) Valve Guides
4) Valve Seals
5) Spring Set (Titanium retainers; H.T. Steel keepers; Chrome-Silicon springs;
H.T Steel lower collars)
Note: 0.550" valve lift OK