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Valve Spring Kit|SKU #20-21550-553
Kibblewhite Intake Exhaust Valve Spring Kit .660in Lift w Valve Seal
$223.07
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Additional Note
Note: Includes 7mm Stem x 9° Keepers
Description
KPMI® valve springs are wound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI® valve springs are heat-treated, stress relieved, and shot-peened to ensure maximum performance and life. Springs are engineered for each specific application using proprietary advanced spring design simulation, and analysis software. Engineers pay special attention to cam and spring harmonics, stress, mass, and operating rpm.
Features
- Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond™ intake valves
- Extend the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts
- Includes forged one-piece stainless steel intake valves, wound chrome-silicon heat-treated wire valve springs, ultra-light titanium retainers and hardened steel bases
- Components are created using Finite Element Analysis (F.E.A.) software, as well as proprietary camshaft analysis and spring design software
- Specifically designed and engineered for each application
- Made in the U.S.A.
Specifications
Condition
New
SKU#
20-21550-553
Part
Valve Spring Kit
Application
Exhaust, Intake
Gasket Application
Exhaust, Intake
Material
Stainless Steel
Spring Seat Pressure
178 lb
Spring Open Pressure
371 lb
Spring Lift
0.66 in
Sold in Units of
Kit
FitmentBuell Firebolt XB9R , Harley Davidson Sportster 1200 Custom XLC EFI, Police XL1200CP, Dyna Street Bob FXDB, Hard Candy Custom FXDB, EFI FXDBI, Dyna Low Rider FXDL, EFI FXDLI, Dyna Fat Bob FXDF, Tri Glide Ultra Classic FLHTCUTG, Road Glide FLTRX, FLTR, EFI FLTRI, Dyna Wide Glide FXDWG, EFI FXDWGI, Road King FLHR, Shrine Special Edition FLHR, Screamin Eagle FLHRSE4, Screamin Eagle FLHRSE3, Heritage Softail Classic FLSTC, Shrine Special Edition FLSTC, Ultra Limited Electra Glide FLHTK, Softail Deluxe FLSTN, Fat Boy FLSTF, Peace Office Special Edition FLSTF, Screamin Eagle FLSTFSE, Road Glide Ultra Ultra FLTRU, Electra Glide Ultra Classic FLHTCU, Shrine Special Edition FLHTCU, EFI FLHTCUI, Screamin Eagle FLHTCUSE3, Peace Officer Special Edition EFI FLHTCUI, Screamin Eagle FLHTCUSE, Street Glide FLHX, EFI FLHXI, Street Glide CVO FLHXSE, FLHXSE3, FLHXSE2, Street Glide Special FLHXS, Breakout CVO Pro Street FXSE, FXSBSE, Hard Candy Custom FXSBSE, Road Glide Special FLTRXS, Freewheeler FLRT, Softail Slim FLS, Breakout FXSB, Fat Boy S Lo FLSTFBS, Softail Slim S FLSS, Dyna Low Rider S FXDLS, Fat Boy Lo FLSTFB, Road Glide Ultra CVO FLTRUSE, Dyna Switchback FLD, Ultra Limited CVO Electra Glide FLHTKSE, Electra Glide Ultra Classic Low FLHTCUL, Ultra Limited Low Electra Glide FLHTKL, Electra Glide FLHTK, Road Glide Custom FLTRX, Softail CVO Deluxe FLSTNSE, Convertible FLSTSE3, Convertible FLSTSE, Dyna Super Glide Custom FXDC, EFI FXDCI, Anniversary FXDC, Road King CVO Project Rushmore FLHRSE, FLHRSE5, Tri Glide Ultra FLHTUTG, Road King Classic FLHRC, EFI FLHRCI, Electra Glide Classic FLHTC, EFI FLHTCI, Screamin Eagle FLHTCSE, Blackline FXS, Hard Candy Custom FXS, Road Glide Custom CVO FLTRXSE2, FLTRXSE, Sportster 1200 XR1200, XR1200X, Electra Glide CVO Ultra Classic FLHTCUSE7, FLHTCUSE6, FLHTCUSE5, FLHTCUSE4, Rocker C FXCWC, Cross Bones FLSTSB, Street Glide Trike FLHXXX, Sportster 1200 Low XLL EFI, Dyna Super Glide FXD, Screamin Eagle Anniversary FXDSE2, Screamin Eagle FXDSE, 35th Anniversary FXD, Softail Custom FXSTC, Dyna Fat Bob CVO FXDFSE2, FXDFSE, Sportster 883 Low XLL EFI, Softail Custom Classic FXSTCU, Electra Glide FLHT, Standard FLHT, Rocker FXCW, Road Glide CVO FLTRSE3, Softail Springer CVO FXSTSSE3, Sportster 883 XL883 EFI, Sportster 883 Custom XLC EFI, Night Train FXSTB, Softail Springer Screamin Eagle Anniversary FXSTSSE2, Screamin Eagle FXSTSSE, FXSTS, Sportster 1200 Roadster XL1200R EFI, Softail Deuce FXSTD, Road King Custom FLHRS, Softail Springer Classic FLSTSC, Sportster 883 Roadster XLR EFI, Softail Standard FXST, Heritage Softail FLST, Dyna Super Glide Sport FXDX
Vehicle Compatibility
Search to verify this part fits your vehicle
Year
Make
Model
Action
2011
Harley Davidson
Road King Classic FLHRC
2009
Harley Davidson
Dyna Street Bob FXDB
2005
Harley Davidson
Dyna Super Glide FXD
2006
Harley Davidson
Road King Classic EFI FLHRCI
Brand Details
Kibblewhite Precision Machining™ has been manufacturing valvetrain components for over 80 years, continually innovating and expanding to become the company with the most extensive powersport product line. Whether you need Kibblewhite Intake Exhaust Valve Spring Kit .660in Lift w Valve Seal or any other cylinder head kit, seals, studs, valves, guides, or anything else to repair your machine, you can be sure that you're getting the maximum value for your dollar in terms of performance and reliability.
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