S&S Cycle 508 Camshaft for 1984-1999 Harley-Davidson Big Twins

S&S Cycle 508 Camshaft for 1984-1999 Harley-Davidson Big Twins

The S&S 508 camshaft is the classic bolt-in upgrade for any size Big Twin engine, delivering improved low-to-mid-range power with a quiet valve train that never draws attention on the street. Riders who want a noticeable performance boost in everyday riding without changing a single supporting component will find the 508 the most direct path to a better-running engine.

Key Features

• True bolt-in camshaft requiring no valve train modifications
• Improves low-to-mid-range power delivery over the stock cam
• Compatible with all Big Twin displacement sizes up to 10:1 compression
• Quiet valve train operation
• Compatible with hydraulic tappets
• Made in the USA

Technical Specifications

• Lift: .508″
• Engine Compatibility: All Big Twin displacements up to 10:1 compression
• Tappet Type: Hydraulic
• Installation: Bolt-in; no spring or pushrod modifications required

Fitment Notes

• Fits 1984-1999 Harley-Davidson Big Twin models
• Verify coil bind, valve-to-valve clearance, valve-to-piston clearance, and cam lobe-to-case clearance
• Review the Fitment tab for complete year and model breakdown