S&S Cycle Camshafts — Harley-Davidson Dyna Wide Glide, Dyna Low Rider, Dyna Super Glide (1983-2020)

S&S Cycle camshafts designed for Harley-Davidson Dyna engines with 103 cubic inch displacement and compression ratios from stock 9.7:1 up to 10.5:1. These bolt-in cams deliver peak power in the 3000–6000 rpm range and work with both stock and S&S CNC ported cylinder heads.

Features

• Bolt-in installation for 103 engines
• Optimized for 9.7:1 to 10.5:1 compression ratios
• Peak power delivery 3000–6000 rpm
• Compatible with stock and ported heads

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 330-0343
• Category: Engine Components / Camshafts
• Weight: 4.1 lb

Fitment

Fits Harley-Davidson Dyna engines with 103 cubic inch displacement and compression ratios between stock 9.7:1 and 10.5:1.

Frequently Asked Questions

Will these work with stock cylinder heads?

Yes — these cams work well with unported stock heads, though they truly shine when paired with S&S CNC ported heads.

What compression ratio do I need?

These are designed for engines with stock 9.7:1 compression up to 10.5:1. Higher compression may require different cams.

When does the power come in?

Peak power is in the higher rpm range, between 3000 and 6000 rpm — ideal for aggressive riding.

Do these require any modifications to install?

No — these are bolt-in cams for 103 cubic inch Dyna engines. No porting or machine work needed.