What is the primary benefit of the S&S Cycle HP103C camshaft?

The primary benefit is improved performance in the higher RPM range, specifically between 3000 and 6000 RPM. It's designed to help your 103 cubic inch engine breathe better for increased power.

Does this camshaft kit come with all the necessary installation hardware?

This kit includes the HP103C camshafts. It is designed as a bolt-in component, but it's always recommended to consult the manufacturer's installation instructions for a complete list of any additional hardware or components that may be needed for your specific application.

What compression ratios is this camshaft kit designed for?

The HP103C camshaft kit is designed as a bolt-in for engines with compression ratios ranging from 9.7:1 up to 10.5:1. This makes it suitable for many stock and slightly modified 103 cubic inch engines.

S&S Cycle 2006 Dyna HP103C Chain Drive Camshaft Kit

Specifications

Brand: S&S Cycle
Part #: 330-0343
UPC: 330-0343

S&S Cycle 2006 Dyna HP103C Chain Drive Camshaft Kit

Name: S&S Cycle 2006 Dyna HP103C Chain Drive Camshaft Kit
Brand: S&S Cycle
Price: 418.95 USD
Availability: InStock

$418.95

On Backorder — Expected to ship by May 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

S&S Cycle HP103C Chain Drive Camshaft Kit for 103ci engines. Bolt-in cams for 3000-6000 rpm power.

Key Features

Fits 39+ vehicle make/model combinations, including Harley-Davidson Road King, Street Glide, and Fat Boy models from 2007-2017.
This kit includes the HP103C chain drive camshafts.
Designed as bolt-in cams for engines with 9.7:1 to 10.5:1 compression.
Works well with stock, unported heads and is great for S&S CNC ported heads.
Delivers best power in the higher rpm range, from 3000-6000 rpm.
Features 0.575" valve lift on both intake and exhaust.

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Will this fit your vehicle?

Product Details

When you're looking to get more out of your 103 cubic inch engine, this S&S Cycle HP103C Chain Drive Camshaft Kit is a solid option. This kit includes the camshafts, designed to be a direct bolt-in for engines with 9.7:1 to 10.5:1 compression ratios. It's built to work well with stock, unported heads, but really shines when paired with performance heads like those from S&S Cycle.

You'll notice the best power gains from this camshaft in the higher RPM range, typically between 3000 and 6000 RPM. The specs show a valve lift of 0.575 inches on both the intake and exhaust, with a duration at 0.053 of 249 degrees for the intake and 251 degrees for the exhaust. This setup is designed to improve the breathing of your engine for better performance.

This kit fits a wide range of Harley-Davidson models from 2007 through 2017, including popular bikes like the Road King, Street Glide, and Fat Boy. It's a well-built component from S&S Cycle, a name known for performance motorcycle parts.