Description
If you’re running a stock or mildly modified Twin Cam 88 engine and want measurable torque gains without extensive head work, the S&S CYCLE 509 Series cam chain delivers where it matters—from 1,000 to 4,500 rpm. The conservative lift profile means zero compression release headaches and full compatibility with stock valve springs, making this a straightforward bolt-on upgrade that doesn’t require machine work or a complete top-end overhaul. You get stronger, more responsive low-to-mid range power without the complexity or cost of a gear drive conversion.
What’s Included:
- Two chain-drive cams (front, rear)
- Two 22 x 28.5 x 12 needle bearings
- Two 20 x 42 x 12 bearings (one with O-ring)
- Large and small O-rings
- Retaining ring
- 5/16″-18 x 3/4″ flange bolt
- Cam cover gasket
- Loctite® 262 and 243 (5ml tubes)
- Installation instructions
Technical Specifications:
- Manufacturer Part Number: 330-0016
- Application: 2006+ Harley Twin Cam 88 (96″, 103″, 106″)
- Peak Performance: 1,000–4,500 rpm
- Cranking Compression: 180 psi
- Valve Spring Requirement: Stock or performance (max 160 lb. seat force)
- Installation: Bolt-on (no compression releases)
- Chain Drive (lower valve train noise than gear drive)
- Made in U.S.A.
- Professional clearance verification recommended
