On All Knight Prowler Valve Springs

ON ALL KNIGHT PROWLER VALVE SPRINGS!
Call for Details
W160-PSW-10L
Outside Dia. = 1.445 1.850 = 160lbs. 1.800 = 180lbs. 1.775 = 190lbs. 1.200 = 430lbs. 1.040 = Coil Bind
W188-1200-10L
Outside Dia. = 1.445 1.850 = 188lbs. 1.825 = 198lbs. 1.800 = 208lbs. 1.200 = 450lbs. 1.060 = Coil Bind
EVO or TWIN CAM

Most companies 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 specifically 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, including the national champ. It doesn't take a rocket scientist to figure out that a valve spring that 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 for our 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 are topped off with 10 valve locks that can be used with or without lash caps. Also included are steel heat-treated stock diameter spring seats.
for 2004!
W200-1200-10L
Outside Dia. = 1.475 1.850 = 200lbs. 1.825 = 210lbs. 1.800 = 220lbs. 1.200 = 450lbs. 1.020 = Coil EVO or Twin Cam
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 PROWLER 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, proprietary, multi-step, 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.
For
ALL 2005 - 2009Twin Cam Only

W160-PSW-7L
Outside Dia = 1.400 1.900 = 170lbs 1.875 = 178lbs 1.850 = 187lbs 1.300 = 368lbs 1.230 = Coil Bind STOP! 2005 & up TCam 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 valves That Rotate Inside the Valve Locks.

On All Knight Prowler Valve Springs

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On All Knight Prowler Valve Springs

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ON ALL KNIGHT PROWLER VALVE SPRINGS!

Call for Details

EVO or TWIN CAM

ALL 2005 - 2009Twin Cam Only

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