Valve and Spring Kits, 1948-1965 HD PANHEAD ENGINE KIT

Made In The USA

Twin Power is proud to introduce a new line of high quality USA made valve and spring kits to the product line. These are offered as Replacement Valve Kits or Complete Engine Kits. Valve kits include (4) stock size valves for each application. Engine kits include (4) valves, A complete OEM replacement style spring kit, steel retainers and keepers, and valve guide seals (where applicable). From Knuckleheads to the latest Twin Cam models, we give you everything you need in one kit. Only one part number to order for a complete cylinder head overhaul. (Note: dealer must install and fit valve guides as needed). Easy to order, easy to stock, and Made in USA.



Black Diamond Valves
Black Diamond™ Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface build-up of .0002. This Black Diamond process improves wear properties, reduces friction, and provides resistance to corrosion. Valves are lightweight, strong, one piece forgings with profiles that provide excellent flow characteristics.

Spring Kits
O.E.M. replacement kit is designed to give stock pressures and work with stock cam profiles. These kits are manufactured to original O.E.M. specifications using premium modern materials, design protocols and manufacturing techniques. All components are the high quality parts you expect from Twin Power. Valve springs are wound from Super Clean chrome silicon valve spring wire that has been heat treated and shot peened. The retainers, keepers, and bases are designed to provide maximum mechanical strength. Beehive style springs are supplied where applicable for stock replacement.

Valve Guide Seals
Red 100% Viton valve stem seals are designed to have optimum fitment, allow, maximum lift, and to give maximum life. They are resistant to high temperatures, petroleum products and the corrosive gasses. (Note: Late Shovel kits include a stock type K Line seal, Knucklehead and Ironhead Sportsters do not include seals)

Note: Late Shovel kits include a stock type K Line seal. Knucklehead and Ironhead Sportsters® do not include seals.

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Additional Information

Made In The USA Yes
Harley Davidson O.E.M. No
Buell O.E.M. No
Indian O.E.M. No
Victory O.E.M No