S&S CYCLE - 33-5178 - Camshaft Kit - 570G Gear Drive - Twin Cam
Whether restoring a machine to factory spec or building something better, the S&S CYCLE 33-5178 gives you a camshaft kit that meets the demands of serious street use. Designed for 88” to 103” CID engines with compression ratios between 9:1 and 10:1. Strongest from 3200-3700 rpm, giving you a level of quality that holds up across the full service life of the component. Increases valve timing accuracy by eliminating timing chain lash and loosely fit stock chain drive. Reverses the rear cam's direction of rotation, providing additional operating clearance between cam lobes resulting in higher cam lifts. Material must be removed from inner surface of stock gear cover to install. The 33-5178 is the kind of component that earns its place in any build or repair by doing exactly what it is supposed to, every time. Sold as a complete kit.
Features
- Designed for 88” to 103” CID engines with compression ratios between 9:1 and 10:1
- Strongest from 3200-3700 rpm
- Increases valve timing accuracy by eliminating timing chain lash and loosely fit stock chain drive
- Reverses the rear cam's direction of rotation, providing additional operating clearance between cam lobes resulting in higher cam lifts
- Material must be removed from inner surface of stock gear cover to install
- A hydraulic press and other professional level tools required to install kit
- S&S recommends that adjustable pushrod/cover kit be used
- Cam bearings and gasket must be replaced when installing new cams
- Kit includes camshafts, gearcover gasket, bearings, oil passage block off kit, retaining ring, o-ring, inner and outer gears
- Made in the USA
- Due to the inherent characteristics of gear drives, you may experience more valve train noise.
- Installer must check coil bind, valve to valve clearance and valve to piston clearance.
Specs
- Exhaust Duration: 255°
- Exhaust Lift: 0.570”
- Exhaust Lobe Centerline: 107.5°
- Exhaust Close: 20°
- Intake Close: 40°
- Intake Open: 20°
- Riding Style: Street
- Exhaust Open: 55°
- Grind: 570 Series
- Type: Gear
- Intake Lobe Centerline: 100°
- Application: Exhaust
- Exhaust Lift at TDC: 0.179”
- Intake Lift: 0.570”
- Application: Intake
- Intake Duration: 240°
- Intake Lift at TDC: 0.187”
- Product Name: Camshaft Kit
- Units: Kit
Frequently Asked Questions - S&S CYCLE - 33-5178 - Camshaft Kit - 570G Gear 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.
