S&S CYCLE - 106-4381 - Camshaft Kit - 570C Chain Drive - Twin Cam
For riders who put serious hours on their machine, the S&S CYCLE 106-4381 is a 570 chain built with Japanese steel for consistent power transfer and long service life. Designed for 88” to 103” CID engines with compression ratios between 9:1 and 10:1. Kit includes camshafts, gearcover gasket, bearings, retaining ring, o-ring, thread lock and instructions, ensuring strong pin retention. Strongest from 3200-3700 rpm, and made in the USA give this chain the internal toughness to resist constant flex and impact loads. Installer must check coil bind, valve to valve clearance and valve to piston clearance.. Whether running a practice bike, race machine, or trail bike, the 106-4381 delivers consistent performance. Sold as a complete kit.
Features
- Designed for 88” to 103” CID engines with compression ratios between 9:1 and 10:1
- Kit includes camshafts, gearcover gasket, bearings, retaining ring, o-ring, thread lock and instructions
- Strongest from 3200-3700 rpm
- Made in the USA
- Installer must check coil bind, valve to valve clearance and valve to piston clearance.
- Requires high lift valve springs.
- Camshafts for '06 Dyna and '07-'17 Twin Cam are for use with models with hydraulic tensioner chain drive system.
- Camshafts for '00-'06 Twin Cams are use with stock splined drive gears.
Specs
- Exhaust Lift at TDC: 0.179”
- Application: Exhaust
- Application: Intake
- Exhaust Open: 55°
- Intake Lift at TDC: 0.187”
- Exhaust Duration: 255°
- Exhaust Lobe Centerline: 107.5°
- Grind: 570 Series
- Intake Open: 20°
- Exhaust Lift: 0.570”
- Intake Lift: 0.570”
- Product Name: Camshaft Kit
- Type: Chain
- Units: Kit
- Intake Duration: 240°
- Intake Lobe Centerline: 100°
- Exhaust Close: 20°
- Intake Close: 40°
- Riding Style: Street
Frequently Asked Questions - S&S CYCLE - 106-4381 - Camshaft Kit - 570C Chain Drive - Twin Cam
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
