Thoughts on S&S 570 cam in 103 engines?

Performance & Modifications
1

I’ve been diving deep into the world of performance upgrades for my Harley with the 103 cubic inch engine, and I’ve stumbled across the S&S 570 cam. I’m really curious about a few things and would love to tap into the wisdom of this community.

Performance Improvements

First off, just how much of a difference can I expect from upgrading to the S&S 570 cam? For anyone who’s made the switch, did you notice a significant boost in power, torque, or throttle response? Any dyno results you can share would be super helpful!

Installation Insights

Also, I’d love some input on the installation process. Is it something that a seasoned DIYer can tackle, or should I be looking to have a professional do it? I’ve read some conflicting info about whether it requires special tools or any significant modifications to the engine.

Experience Sharing

For those who have already swapped out their cams, what’s your overall experience been like? Were there any unexpected challenges or smooth sailing? How does the S&S 570 perform compared to stock, or other cam options you considered?

Recommendations

Lastly, are there any other modifications you recommend pairing with the S&S 570 cam? I want to ensure all the parts work well together to get the best out of my ride.

I appreciate any insights or personal experiences you can share about the S&S 570 cam in a 103 ci Harley! Thanks in advance for your help!

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2

I’m thinking about installing the S&S 570 cam in my 103 as well. I’ve heard it really wakes up the engine! What tools should I have on hand for the job?

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3

You’ll definitely need a torque wrench, some good quality sockets, and a cam timing tool. Don’t forget the service manual for the specs!

4

I second what ronaldterry said about the torque wrench! Proper torque is crucial to avoid future headaches. Make sure you have a quality gasket set as well.

5

Are there any specific gasket brands you recommend? I’m new to this.

6

I’ve had good luck with Cometic gaskets. They seem to hold up well to the heat and pressure. Plus, they’re easy to find online!

7

How long did it take you to install the cam, murraymartin? I’m trying to budget my time right.

8

It took me a weekend, but I was moving a bit slow, taking my time! Don’t rush it; it’s worth it.

9

I’m feeling kind of nervous about this. Is there any particular pitfall that I should watch out for during installation?

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10

Make sure you don’t lose the little key that sits in the cam gear. It’s easy to overlook and can cause big issues if dropped!

11

That sounds like the kind of mistake I’m likely to make. Any tips on avoiding that?

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12

A magnetic tray can be your best friend! Keeps everything in one place so you don’t misplace any parts. Trust me, it’s worth it!

13

Okay, but let’s be real, how many of us have lost parts during an install? You’d think I was working on a magic trick with all the disappearing bolts! #HarleyLife

14

I’ve installed the S&S 570 cam in my 103 and noticed a huge difference! You’ll want to adjust the EFI to accommodate the increased airflow. A good tune is essential for optimal performance.

15

What exhaust system are you using with your 570 cam? I’m curious about the best options for maximizing sound and performance.

16

For exhaust, I recommend going with a 2-1 system. It really complements the S&S cam and helps with low-end torque. My bike’s performance improved significantly after I switched!

17

That’s solid advice! What about intake? I’ve heard good things about high-flow air cleaners with this setup.

18

Absolutely! A high-flow intake can really wake up the bike. Just make sure to tune it properly afterward to avoid any issues.

5 Likes
19

I’m considering the S&S 570 for my 103, but I’m a bit hesitant. Is it really worth the investment? What sort of performance gains can I expect?

20

Yes! You’ll notice better throttle response and a nice power band. It’s one of the best upgrades you can make!

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