S&S Chain Drive Cam Chest Kit

It really comes down to what you're after. Both grinds offer improved performance over stock, that's for sure! They differ primarily in where most of the bump in power occurs. The 509 is designed for strong low-end to mid-range torque, from idle to 3000 RPM - better for stop-and-go riding. The 510 focuses its power output higher up in the rev range (3000+), which is nice to have if you want more acceleration at highway speeds. Depending on your needs, really, where you find most of your time spent, that's the cam you should go for. No matter which of these you choose. you can expect a noticeable difference in power output, that is most certain!

Assuming all the remaining parts on your machine are in good condition (as you've noted), then there's no need to upgrade any other valvetrain components. It's only when you get about a valve lift of .515"+ that performance valve springs are required on Twin Cam 88 engines. With regard to fuel efficiency and oil temp - those changes are nominal, so you're unlikely to note any real changes in either. So long as you're running a quality oil, and make the proper fuel delivery adjustments, about the only thing you'll notice is a better throttle response.

In a word, YES. Even with no upgrades at all, these kits do a pretty good job of waking up the motor on your machine. Of course, should you add other items in the future, their performance will complement the added potential of this kit as well. If this is as far as you ever plan on going, I'm sure you'll be happy. S&S cam chest kits are an awesome upgrade for power and throttle response!

For your particular setup, the .585 valve lift is nice since it provides a nice bump in power between 3500-6000 RPM. If you like ripping away from lights and firing it out of turns, it's a good choice. Plus, with those components you already have enough air coming in / moving out to really take advantage of those cams. Of course, you'll want to adjust fuel delivery to suit, but other than that, we're confident you'll be happy with this kit.

Yes, it should be fine. Just make sure you adjust fueling accordingly and you should be all set. After all, Twin Cam 103 engines, again when properly tuned, run just fine with bigger cams as well so you shouldn't have any problems getting this to work for your particular setup. Just be sure to tune your S&S carbs right and you're good to go! 

Yes, you'll most certainly need to have your bike tuned if you expect to get the most out of this, or any other, cam chest kit we carry. For your particular needs, we recommend a Dynojet Power Vision and a trip to a competent dyno tuner. You will need a custom map built in order to truly benefit from the additional power that the cam chest is capable of delivering. Something like an FP4 from Vance & Hines or anything with an auto-tune function really isn't capable of handling the fuel map changes required, so please don't short yourself on getting set up the right way and go with a Power Vision and the requisite time on the dyno.

Matched to a properly-developed fuel map, really, either the .462 or .475 grind is going to be of a noticeable improvement in all riding conditions. And you certainly have the capability with the Thunder Max tuner on your bike, that device will certainly be more than up to the task of delivering fuel correctly. The .462 will provides good bottom end while the .475 kit will really provide better gains 2800RPM+ So me, for mostly highway riding, .475 grind. For more stop/go riding, the .462 is probably the better choice. No matter what, they'll both be better than stock!

Yes, every one of these S&S cam chest kits includes an improved S&S cam chain tensioner.

To break it down as simply as possible, really, for your needs, the .462" lift kit is really nice for touring bike applications. Just keep in mind that all of these kits, obviously, will get you way better performance than stock. Considering the fact you've got the right tuner, making the upgrade will be pretty straightforward from a tuning standpoint, too.

Although they're not shown, yes, new inner cam bearings are included with these kits for Twin Cam models.

Yes, even though it's not shown, a cam chain tensioner is included with each one of these kits. You won't need to purchase that separately.

Yes, all S&S cam chest kits come with well-written and easy-to-follow instructions. They make installation a lot easier by taking all of the guesswork out of measurements, order of operations &etc. They're really good!

For chain-driven cams, such as this one, there's no max runout since the cam chain itself or really, the tensioner; takes out the slack. Now, if you're talking about a gear-driven cam kit, that's where the number matters since the engine is going gear-to-gear. In those setups, 003" is the most you'd want to see.

In the case of the 2019 Harley Davidson FXLR Softail Low Rider, yes, it will indeed work with the OEM valve springs. It's only when you go over the 0.475" valve lift that you get into aftermarket valve spring territory. This cam chest in particular, regardless of the valve lift you choose, is designed specifically to work with the remaining OEM engine components that are not included in the kit.

As you'll see, once you select your machine from our fit guide, the biggest cams you can get with this kit have a .475" lift. That'll get you over 100HP, easily, with a proper tune and your bike's current configuration. If you're looking for more power down low, your best bet would be an S&S cam chest kit without cams and then maybe something like an S&S 550 cam to go with it. Again, a proper tune is required if you expect to get the most out of any change in engine configuration.

I think you'll find the 2016 Harley Davidson FLHTK Electra Glide Ultra Limited cam chest kit from S&S more than suitable for your needs. Other than a proper tuner, we recommend a Vance & Hines FP4, everything you need to fit this kit to your bike is in the box. Gaskets, assembly lube, all of the parts you'd need are in the box. All you gotta do is follow the included instructions carefully and you'll really appreciate the power this kit has for you!

We most certainly do! Just select the 2022 Harley Davidson FXLRST Softail Low Rider ST S&S cam chest from our fit guide, and you'll receive the correct parts to fit your bike. Get ready for big power! !!!

Generally speaking, with Twin Cam engines, if you're bumping valve lift to something greater than .551"  then yes, you'll want to add a set of high-performance valve springs to your build. Of course, since this is an S&S kit, we recommend the S&S Valve Spring Kit to go along with it. Those two items together will help you get the most out of that build you've got going and keep up with the reliability aspect that you're looking for.

In a word, YES. Regardless of how much valve lift you were to choose, 462" or 475" - when properly tuned, you'll find the engine much more responsive at all power settings and, of course, it'll be more powerful. Choose the .465 kit if you're more interested in cruising over longer distances as it puts most of the bump in power where you'll want it - at cruising speeds. If you're more interested in ripping away from the lights than cruising, choose the .475 kit instead. Either way, again - you'll be glad you did since, no matter what, you'll really wake up that engine!

Yes, absolutely. S&S cam chest kits are designed to work with any exhaust that fits the bike in its stock configuration. These components don't change any of the engine's outside dimensions. Now, if you're asking about performance, that too, won't be an issue. In fact, adding an aftermarket pipe is probably the best thing you can do to get the most out of these engine kits. When tuned correctly, they make good power when matched with a good exhaust!

These cam chest kits will certainly work with all of the OEM valvetrain and intake components, with exception to the valve springs themselves in certain circumstances. And that varies based on engine type. If you're putting this in an M8 engine and using a kit with a valve lift greater than .540 in. or a Twin Cam with lift greater than .551 in., then you will need to use high-performance valve springs if you expect the engine to last, or run well at higher RPMs. In other words, so long as the cams aren't too bumpy, yes - these will work with all of the stock Harley-Davidson engine parts and intake components on any machine you select from our fit guide.

Yes, if you were to select the 2004 Harley Davidson FXSTDI Softail Deuce cam chest kit from our fit guide, you'd receive the correct components to fit your fuel-injected Harley-Davidson motorcycle.

Yes, the .465 lift cam for Milwaukee Eight engines are highly recommended for touring applications. S&S refers to that profile as "ideal for touring applications" in their own literature. The reason being: good bumps throughout the entire RPM range without having too aggressive of a profile which could make throttle response at cruising speeds less than ideal. For long-range cruising, yes - go with the .465 Milwaukee Eight Touring cams! 

It really depends on how much valve lift you choose, and the engine type - Twin Cam or Milwaukee Eight, also play into that. In the case of Milwaukee Eight engines, valve lifts of .540 in. and up require heavy-duty springs. For Twin Cam engines, valve lifts of .551 require heavy-duty valve springs.

Yes, this will fit! If you were to choose the 2020 Harley Davidson FLTRX Road Glide cam chest from our fit guide, you'd receive the correct parts to fit your machine.

Yes, this kit would work for that 2011 FLHX with 103 engine.

According to S&S, the 475C kit is a bolt in kit for stock M8 engines to make around 100 hp after install.

The .462 lift cam chest kit would be what I would suggest for what you are describing with that 2018 FLTRXS Road Glide Special.

Yes, this kit would be a bolt on installation with no need to change anything else in order to make it function.