Premium quality Black Diamond® Exhaust Valves suitable for 750cc & 850cc Norton Commando models. 0.060” Oversize.
Unit of Sale: EACH
All KPMI Black Diamond Stainless Steel Valves are impregnated by a special German process to .002" deep with a .0002" surface build-up to improve wear properties and reduce friction. This process provides resistance to corrosion and wear that is superior to that developed by hard chromium and electrolysis nickel plating. These valves are light and the profiles provide excellent flow characteristics.
Made in USA
Model: 750cc & 850cc
Year: 1968 to 1977
Material: Stainless Steel
Description: Black Nitroneg Stems
Head Diameter: 1.360" / 34.54 mm
Stem Diameter: 0.3107" / 7.9 mm
Overall Length: 4.005"
KPMI Part Number: 50-4091-1