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for Flathead Big Twins 1937-1948

KPM Black Diamond Valves

for Flathead Big Twins 1937-1948

Kibblewhite Black Diamond valves are CNC machined from one-piece forgings of EV8 stainless steel. The proprietary Black Diamond multi-stage process treats the shaft to a depth of 0.002” creating a hard, smooth and corrosion resistant surface that cannot flake crack or peel off. The valve tips feature welded-on stellite tips for improved resistance to the impact and abrasive wear of the rocker arms. All versions work with modern lead-free fuels.

  • fits Flathead 74”-80” 1937-1948
  • intake/exhaust
  • length: 159.5 mm
  • stem: 9.4 mm
Item №
Version
net price*
unit
Availability in warehouse Germany
for Flathead Big Twins 1937-1948
61-348
head: 49 mm; replaces OEM 18072-37, and 18082-37
$47.76
each
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for Flathead Big Twins 1937-1948
61-349
oversize; Over-/Undersize: +0.120 ”; head: 52 mm
$47.76
each
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* The price includes German VAT (19% or reduced rate of 7% for Books).