What is the compression ratio requirement for this camshaft?

This S&S Cycle 508 Camshaft is intended for stock engines with a compression ratio of less than 10:1. It's designed to work well within that range without requiring further engine modifications.

What kind of riding is this camshaft best suited for?

This camshaft is specifically designed to provide excellent low and mid-range torque. This makes it a great choice for touring and two-up riding, where consistent power delivery is important.

Does this camshaft come with all necessary installation hardware?

This product listing is for the S&S Cycle 508 Camshaft itself. It is designed as a bolt-in part, but it's always recommended to consult the manufacturer's installation instructions to confirm if any additional hardware or specific tools are required for your application.

S&S Cycle 508 Camshaft 330-0093 - Harley-Davidson Big Twin

Name: S&S Cycle 84-99 BT 508 Camshaft
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-84-99-bt-508-camshaft-t14-619285
Price: 255.95 USD
Availability: BackOrder

S&S Cycle 84-99 BT 508 Camshaft

$255.95

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 84-99 BT 508 Camshaft. Bolt-in cam for stock engines with less than 10:1 compression, offering excellent low/mid range torque.

Key Features

Fits 1984-1999 Harley-Davidson Big Twin models.
Designed as a bolt-in camshaft for stock engines.
Intended for engines with less than 10:1 compression ratio.
Provides excellent low and mid-range torque.
Features quiet valvetrain operation.
Ideal for touring and two-up riding applications.

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Will this fit your vehicle?

Product Details

This S&S Cycle 508 Camshaft is what you get when you want a straightforward upgrade for your Harley-Davidson Big Twin engine. It's designed as a bolt-in part, meaning you don't need to do any major modifications to get it installed, making it a popular choice for stock engines that are running less than 10:1 compression. You'll find it fits a wide range of Harley-Davidson models from 1984 through 1999, including popular bikes like the Electra Glide Classic, Heritage Softail, and Dyna Super Glide.

What makes this cam stand out is its focus on low and mid-range torque. If you do a lot of touring or ride two-up, you'll appreciate the improved pull in those everyday riding situations. It's built to provide a quiet valvetrain operation, so you won't have to worry about excessive noise. This camshaft is a well-built component from S&S Cycle, a name known for performance engine parts.

When you're looking to get more usable power out of your stock engine without going through a full rebuild, this 508 camshaft is a solid option. It's a direct replacement that aims to improve your riding experience with better low-end grunt.