S&S Cycle Camshafts — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)

S&S Cycle 590C camshaft for Harley-Davidson engines 124cc and larger, engineered for peak horsepower in the upper RPM range. Big lift and aggressive timing let large-displacement mills rev hard and pull strong at high speeds.

Features

• 590 cam profile weighted for top-end horsepower
• Big valve lift for high-RPM breathing
• Includes all gaskets, bearings, and mounting hardware
• Requires adjustable pushrods and heavy-duty valve springs

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 330-0730
• Weight: 2.7 lb
• Category: Engine Components / Camshafts

Fitment

Fits Harley-Davidson engines with 124cc displacement and larger.

Frequently Asked Questions

What size engine do I need for this cam?

The 590C is designed for 124cc and larger Harley-Davidson engines. Smaller displacement motors will not see full benefit.

What else do I need to install this cam?

You'll need adjustable pushrods and heavy-duty valve springs. The cam kit includes gaskets, bearings, and all installation hardware.

Will this cam work with a stock intake and exhaust?

While it can bolt on, the 590C is designed to shine with a high-flow intake and exhaust system to maximize the horsepower it generates.

Is professional installation recommended?

Camshaft installation involves engine disassembly and precise timing — professional installation is strongly recommended unless you have advanced mechanical experience.