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S&S Valve Spring Kit

(1 review)

Item: 327179

Fits: 2021 Harley Davidson FLRT Freewheeler

$301.16

In Stock - Ships Next Business Day!

S&S Valve Spring Kit


  • Works well with cams up to .605" lift
  • High Performance conical single wire spring
  • Made in the USA

Kit includes

  • Springs
  • Top collars
  • Keepers
  • Valve seals/bottom collars
Specification Details
Country of Origin USA
Engine Type Milwaukee Eight
Valve Lift .605 in.

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • FLDE Softail Deluxe 2018-2020
  • FLFB Softail Fat Boy 2018-2019
  • FLFBS Softail Fat Boy 114 2018-2024
  • FLHC Softail Heritage Classic 2018-2021
  • FLHCS Softail Heritage Classic 114 2018-2024
  • FLHR Road King 2017-2021
  • FLHRXS Road King Special 2017-2023
  • FLHTCU Electra Glide Ultra Classic 2017-2019
  • FLHTCUTG Tri Glide Ultra Classic 2018-2024
  • FLHTK Electra Glide Ultra Limited 2017-2023
  • FLHTKL Electra Glide Ultra Limited Low 2017-2019
  • FLHX Street Glide 2017-2023
  • FLHXS Street Glide Special 2017-2023
  • FLRT Freewheeler 2017-2022
  • FLSB Softail Sport Glide 2018-2021
  • FLSL Softail Slim 2018-2021
  • FLTRU Road Glide Ultra 2017-2019
  • FLTRXS Road Glide Special 2017-2023
  • FXBB Softail Street Bob 2018-2020
  • FXBR Softail Breakout 2018-2019
  • FXBRS Softail Breakout 114 2018-2020
  • FXDR Softail 114 2019-2020
  • FXFB Softail Fat Bob 2018-2019
  • FXFBS Softail Fat Bob 114 2018-2023
  • FXLR Softail Low Rider 2018-2020

Customer Reviews

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S&S cycle spring kit M8

By   on  Verified Purchaser

Well it is a quality part from S&S cycles, price point is right on for a budget garage build. S&S makes quality parts for the average garage builders, what else can I say?


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Questions & Answers

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Do you recommend replacing the stock 110 valve springs on a 2016 CVO when doing the S&S 585 cam kit?

It's really never a bad idea to upgrade the valve springs, especially since you're already that far into the engine! You'll never regret it, that's for sure. Plus, the S&S components are more durable than the stock springs anyway, so you can expect more accurate valve timing, easier (more consistent, really) tuning and better throttle response over the long term when using this spring kit.

By Tom
Answer Question

So these 585 springs are good for up to .650 lift??? That's what I'm getting from these previously answered questions.

Yes, you can use these springs with cams that have up to 0.650" of lift. They're far more durable than stock and, by many accounts, help quiet down valve noise, especially when running cams that are closer to stock lift. Either way, they're most certainly an improvement over the OEM Harley-Davidson valve springs!

By Tom
Answer Question

Do you need this up grade kit for MR 585C cams S&S say it a bolt in with stock heads is good for 590 lift with stock heads

While it's not required for every set of Harley-Davidson cams on the market, it's never a bad idea to to upgrade the valve springs anytime you're opening up valve lift. These valve springs are suitable for lifts up to 0.650" - so the 585C cams you're working with are well within the specification for these S&S engine valve springs to handle.

By Tom
Answer Question

Do these come with new valve seals and are these a good match for S&S 585c cams?

Yes, the valve guide seals are indeed included. And, as the 585C cams are indeed suitable for use with these valve springs. In fact, these particular springs can be used with any cam kit with up to a .650" lift.

By Staff
Answer Question

I need valve springs for an 88 cubic inch motor with an S&S 510 gear drive kit. Will these fit?

S&S 510 gear drive cams don't require you to replace the stock valve springs as the lift is only .510" for that motor. If you want some springs to provide positive valve seating pressure while also allowing room for further modification up to .650" valve lift, the springs we have here are perfect for your needs. S&S valves include top collars, bottom collars, springs, shims and valve keepers and will install directly to the OEM valves on your 88" engine.

By Staff
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