Triumph 500 Unit Black Diamond Valve/Guide KitsKibblewhite valves are the best you can get for your Triumph motorcycle. Proven on the street, dirt, Bonneville Salt Flats, and race tracks everywhere, these are the legendary Black Diamond valves. These forged stainless valves are specially impregnated which makes the stems incredibly hard and wear resistant. The reduced friction is also better than hard chrome or nickel plating. Nothing even comes close in terms of longevity. When used with bronze

Please see our tech page for crankshaft journal sizes

4 inner and 4 outer springs

LJ3/4" size

This set consists of a cam gear puller

Also installed are the extended throttle stop screw (622/169) and extended pilot air screw (622/168)

and eliminate the damaging harmonics and valve spring surge found in traditional valve springs

We ship worldwide and can answer any questions you may have that are not covered in the installation notes

Oil seals get old and can become brittle

2350" (6mm) stems with positive Viton seals

For Hepolite piston kits that include this ring set click here

Sometimes the machine shop will not be able to clean up the bore for your piston size

4 rocker box inspection caps      ( 70-1577 or E1577 )