Triumph 500 Unit Black Diamond Valve/Guide Kits
Triumph 500 Unit Black Diamond Valve/Guide Kits
Kibblewhite Precision Machining

Triumph 500 Unit Black Diamond Valve/Guide Kits

Regular price $199.70 $0.00


Black Diamond 500 valve and guide kit

Kibblewhite Black Diamond™ valves are the best you can get for your Triumph motorcycle. These specially impregnated forged stainless valves have proven to have superior wear resistance and reduced friction than that of hard chromium or electrolysis nickel plating. When used with these C630 bronze guides and properly installed and finished, much tighter tolerances than factory can be used successfully for quieter operation, less friction, and much longer service life.

This valve kit is for the 500cc Unit construction that uses a "non squish band" head.  The valve head sizes are 1.540" intake and 1.325" exhaust, with oversizes available. The C630 valve guides are .501" standard, with oversizes of +.002, +.004", +.006", and +.015" only. If you are building a Triumph Unit 500 or need to rebuild a head, these are the highest quality parts you can use. Oversize valves and guides are available at the same price, and can be selected in the drop down menu. 

For Triumph 500cc Black Diamond valve installation notes click here

These intake valves are sized for the 1967-1974 Unit 500 heads. They may or may not fit earlier heads with the 1.430" intake valve, depending on the seat.

This kit is for T100R, T100C, T100S, T100T, and TR5T unit construction models.  THESE VALVES WILL NOT FIT PRE UNIT 500 HEADS

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