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FLO Headworks: |
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Twin Cam and Evo Big Twin Our valves are manufactured in-house from 21-4N stainless steel with polished tuliped heads. The backside is machined with a .750" radius to increase the flow characteristics and nitrided along with the stem to minimize wear. The valve seating area measures .060" wide on the exhaust valves and .045" wide on the intake valves. The head diameter has been increased by 20 percent to 1.687" on the exhaust and 1.937" on the intake. Valve stem clearance is fit to .001" on the intake and .002" on the exhaust. Evolution Sportster and Buell Our valves are manufactured in-house from 21-4N stainless steel with polished tuliped heads. The backside is machined with a .750" radius to increase the flow characteristics and nitrided along with the stem to minimize wear. The valve seating area measures .060" wide on the exhaust valves and .045" wide on the intake valves. The head diameter has been increased to 1.562" on the exhaust and 1.812" on the intake. |
Shovelhead, Panhead, Knucklehead, Ironhead Sportster Our new High Flow valves are the highest quality ever developed for HD. The intake is made of solid Tool Steel tested at "68" Rockwell with polished head and nitrided stem. The exhaust is made of Stainless Tool Steel with polished head and nitrided stem, resisting distortion and wear at temperatures in excess of 2200 degrees. These valves are guaranteed for the life of your engine. Knuckle
and Panheads are updated to accommodate 1.937" intake valves. Iron
Sportster updated to 1.750" exhaust valves. The valves are hand
lapped to the seat for a positive seal. Click to hear Perry talk
about his hand-build valves, good things to know about if your original
valves are victims of detonation.
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Twin Cam, Evo Big Twin, Sportster, Buell |
Shovelhead, Panhead, Knucklehead |
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Ironhead Sportster |
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© 2000-2014, FLO
Headworks. Contact Perry Kime at 805-481-6300 or via
e-mail. |
