ON ALL KNIGHT PROWLER VALVE SPRINGS!
1.850 = 160lbs.
1.800 = 180lbs.
1.775 = 190lbs.
1.200 = 430lbs.
1.040 = Coil
EVO or TWIN CAM
Outside Dia. = 1.445
1.850 = 188lbs.
1.825 = 198lbs.
1.800 = 208lbs.
1.200 = 450lbs.
1.060 = Coil
advertise some new space-age trick alloy, special materials, etc, that
means their springs are absolutely the best. Well, IT'S TIME FOR A REALITY CHECK!
Virtually, most of the these trick valve springs are simply normal RUN OF THE MILL
SHELF SPRINGS that are not made especially for them, just normal bulk that are
re-boxed with their name on them. There are only THREE spring manufacturers in the
U.S. and they can't all be the best.
Bob Wood of Wood Performance Carburetors, an innovator of the Knight Prowler
Camshafts, is a 2-time NHRA national record holder, Fuel Funny Cars etc. He spent
over two years in research and testing trying to find valve springs that were
designed for EVO/TWIN-CAM bikes including his own KNIGHT PROWLER CAMS.
There weren't any out there to meet our criteria.
We needed a special valve spring that would meet every possible condition they were
exposed to. From a simple BOLT-IN application, every day street and tour
rider, to a
ground-pounding, tire-smoking EVO/TWIN-CAM using a 680 lift KNIGHT PROWLER CAM
for maximum street performance.
Indeed our research paid off when we discovered the coveted, well kept secret of what
particular type of valve springs are being used by most Winston Cup race teams,
the national champ. It doesn't take a rocket scientist to figure out that a valve
can run 8,500 rpm + with high lift cams for 500 miles with no signs of fatigue
would be perfect
for 99.99% of our customers. Yes, we needed this particular spring to be redesigned
KNIGHT PROWLER CUSTOMERS. The results are ENDURANCE and LONG LASTING
performance with absolutely NO LIMITATIONS.
I won't bother you with a lot of mumbo-jumbo and rocket science that none of us
understand. We'll just show you the specs that no other spring can match.
All of our valve springs come with custom made (to our specifications) titanium retainers
with a special .070 inner-spring shelf and a zero fit inner-spring register. They
off with 10° valve locks that can be used with or without lash caps.
Also included are steel
heat-treated stock diameter spring seats.
EVO or Twin Cam
Outside Dia. = 1.475
1.850 = 200lbs.
1.825 = 210lbs.
1.800 = 220lbs.
1.200 = 450lbs.
1.020 = Coil
Requests for 200 horsepower cams and
valve springs for large cubic inch Harleys
just keep pouring in! As we all know, our
competition has never even reached
the 150 HP level we reached last year, for street bikes on pump gas.
KNIGHT PROWLERS Never Sleep!
In order to meet future challenges we decided to release our new,
Huge .750 Lift cams with 276° duration that will again keep KNIGHT
Cams the absolute leader for high performance street bikes for quite some time.
In order to meet this new challenge, our KNIGHT PROWLER Cams needed
a new type of valve spring to control these fast ramp-high lift cams that never
seem to run out of power.
Every spring that is manufactured for
our KNIGHT PROWLER Cams comes
from PSI with wire that is made from the highest quality Chrome-Silicone alloys.
The hard to find rod material for these alloys is 100% Kobe steel, long considered
necessary to manufacture the cleanest, purest valve spring available in the world.
Max Life Surface Preparation
KNIGHT PROWLER Valve Springs have an optional,
surface enhancement process that has been proven to increase a springs
endurance limit. This process can be applied
to any level of the
KNIGHT PROWLER series of springs.
It is a very beneficial process for those looking for an increase in endurance
while maintaining their existing setup.
2005 - 2017Twin
Outside Dia = 1.400
1.900 = 170lbs
1.875 = 178lbs
1.850 = 187lbs
1.300 = 368lbs
1.230 = Coil Bind
2005 & up T-Cam Heads are different from 2004 and earlier heads.
Valve Springs are BeeHive type with only 100lbs on the seat and have 7mm
valve stems. 1.800 Int and 1.575 Ex
That Rotate Inside the Valve Locks.
Yes – We did it again and again for
Wood Performance and Only Wood Performance
has stepped up to the plate to give
our customers the absolute latest and best kept secrets in NASCAR valve train
and incorporated it into our latest W160-PSW-7L KNIGHT PROWLER Valve Springs.
1. Advanced 1200 series heat-treating process
2. Additional 1500 series nitriding process
3. PSW Proprietary multi-step surface enhancement process for endurance
4. Proprietary Wood Performance 7deg, 7mm single groove Posi-Lock valve keepers
5. 7deg, 7mm Titanium Posi-Lock retainers (no
valve rotation in valve locks)
6. Plug & Play springs handle .600 lift and still have .060+ seal to
7. No shims or cutting of valve guides required – Uses
stock seals and spring seat
See our "Designer Cams" page for Camshaft Specifications
JULY 2002 - INTERSTATE JUNCTION M/C
THEIR SHOP ROAD KING WITH A W-9F CAM (.650) LIFT AND KNIGHT PROWLER W-185-PSW-10L
AT 1.850 PASSED THE 10,000 MILE TEST WITH FLYING COLORS!! THE SPRINGS WERE REMOVED AND
THE INSTALLED 185 LB. PRESSURE HAD NOT CAHANGED 1 LB AND WERE JUST LIKE THEY CAME OUT OF
CONTACT DAVE ABOUT THEIR PERFORMANCE AND HEAD WORK. 507-377-0626
To download a copy of our Retail Price
To locate a Wood Performance
Dealer near you, just
give us a call at
205-525-4949 or email us at email@example.com
the Letter to Email us
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