2026 KPMI Full Catalog V1 - Flipbook - Page 12
THE KPMI SYSTEM
®
THE KPMI SYSTEM
Seats
Valves
Valves
Seals
Guides
Seats
Light and strong with optimum air昀氀ow Repair /Modify
Basewashers
Guides cont.
Tight tolerances
A combination of FEA stress analysis and 昀氀ow
bench testing of prototype valves allows KPMI®
engineers to optimally balance valve mass,
strength, and air昀氀ow characteristics. A unique tulip
and dish are designed for each application.
Seats are tall, o昀昀ered in several sizes, and have
ample material on the ID for shaping, making them
universal in application. They allow the builder to
repair damaged seat bores, or to increase the seat
size for larger racing valves.
Stellite tips for rocker applications
Ease of installation
Stellite is welded to the valve tips in rocker
actuated applications for resistance to the
impact and abrasive wear common in rocker arm
systems. This welded stellite can never come
loose.
Seat ODs are ground for a smooth uniform surface C630 bronze guides
昀椀nish to insure good contact with the cylinder head C630 is a blend of copper, nickel, and aluminum.
for optimal heat transfer and smooth installation.
The high copper content gives excellent thermal
Seats also have a generous radius on the leading qualities, the nickel makes the guide tough and
edge to prevent galling during installation.
wear resistant, and the aluminum brings work
hardening characteristics. This bronze alloy
allows for tighter clearances than other materials,
Powdered metal seats
creating better valve and seat sealing, as well as
With the latest in powdered metal technology,
superior oil control. The expansion qualities of
KPMI’s R&D team was able to create a high
C630 bronze make it especially compatible with
density seat with exceptional wear resistance,
aluminum cylinder heads.
resistance to micro welding, and good thermal
qualities. This material is compatible with all types
of fuel blends, resists corrosion and burning, and
Cast iron guides
is machinable with standard tooling.
KPMI® R&D has produced a proprietary cast iron
blend that thrives in the tough operating conditions
of today’s engine. KPMI’s certi昀椀ed cast iron
Nickel aluminum bronze seats
The product of a two year KPMI® R&D e昀昀ort, this provides excellent wear resistance and a superior
proprietary high copper, beryllium free bronze alloy guide bore 昀椀nish that is easy on valve stems.
is designed speci昀椀cally for use with titanium valves
in high performance applications.
Manganese guides
These Engine Builder valve guides have been
designed with the price conscious builder in mind.
Expect the same exacting KPMI® tolerances,
but with a reduced toughness / wear-ability when
compared to premium “C630” Nickel Aluminum
Superior air昀氀ow
Bronze valve guides. The softer Manganese
Guide pro昀椀les are designed to have as little
guides are easily reamed, and then can be
e昀昀ect on the airstream as possible, while
delicately 昀椀nished with our high quality ball hones.
maintaining critical cross sectional thickness in
Now, with any battery operated or electric drill you
high temperature areas. Promoting both high
can ream and hone manganese valve guides in
performance and endurance.
less time and in the absence of expensive honing
equipment required to properly size “tough” Nickel
Bronze guides.
Oversize ODs
Multiple oversizes are available.
Black Diamond™ Valves
KPMI® Black Diamond™ one pieced forged
stainless steel valves are impregnated by a special
German process to improve wear properties and
reduce friction. This process provides resistance to
corrosion and wear that is superior to that of hard
chromium and electrolysis nickel plating.
White Diamond® Valves
We fully CNC machine our White Diamond®
valves from a one-piece forging of either EV8
Stainless Steel or Inconel-751. These materials
have proven heat and corrosion resistance
properties and are hard chromed with a 360
degree anode to produce the highest possible
grade of hard chrome 昀椀nish.
Tensilite® Valves
KPMI® Tensilite® titanium valves are one piece
forgings made from 6AL4V or 6-2-4-2 titanium
alloy. These are the latest developments in
titanium valve alloys and have superior hardness,
strength, and thermal characteristics when
compared to other titanium valve alloys. Tensilite®
valves are covered with a chromium nitride (CRN)
PVD coating. This coating adheres exceptionally
well to titanium, has a low coe昀케cient of friction,
and is impact, abrasion, and corrosion resistant.
l
order 650-557-2046
Guides
High concentricity tolerances are held to insure
the best possible geometry between the seat and
guide is maintained when the guides are replaced.
This means minimal material removal from the
seat, time savings, and consistent chamber
volumes, when valve jobs are performed.
