2003 HARLEY-DAVIDSON Camshafts & Valvetrain Engines & Components

S&S Cycle Street Performance .585 Valve Spring Kits

S&S Cycle offers Street Performance .585 in. valve spring kits to upgrade your bike's performance—so you don't have just another "me too" motorcycle. Order the valve spring kit designed for your make and model. Features and specifications: * Available for fitment on a variety of Harley-Davidson® and Buell models * Kit contains springs, top and bottom collars, keepers, and shims * Accommodates camshaft lift to 0.585 inches * Suitable for high performance applications * Coil springs reduce the risk of valve float

Not Yet Reviewed

$163.95

COMP Cams High Performance Valve Spring Kits

Simplify your valvetrain assembly! COMP Cams high performance valve spring kits have everything that you need for a complete valve spring assembly. Springs and retainers are included, along with complete instructions for a worry-free installation.

4.68 out of 5 stars ( 34 )

$145.95

Feuling Parts Inner Camshaft Bearings

Feuling supplies the best bearings available from Koyo Bearings USA LLC, created following Koyo's acquisition of Timken's needle roller bearings business. Feuling Parts inner camshaft bearings are heavy-duty, compact, full complement needle roller bearings designed to provide increased radial load carrying capacity by maximizing the number of rollers in the bearing. Feuling Parts inner cam bearings readily accept the higher loads and demands of performance engines.

5.0 out of 5 stars ( 2 )

$33.95

Feuling Parts Outer Camshaft Bearings

Feuling Parts outer camshaft bearing kits include a ball bearing-style front camshaft bearing and a roller bearing-style rear camshaft bearing with race. Their outer cam bearings readily accept the higher loads and demands of performance engines. Feuling Parts supplies only the best bearings available.

Not Yet Reviewed

$50.95

Kibblewhite Black Diamond Valves

Kibblewhite Black Diamond valves are CNC-machined from one-piece forgings of EV8 stainless steel, impregnated by a special German process to a depth of .002 in. with a surface buildup of .0002 in. This proprietary, multi-stage process reduces friction and provides superior resistance to wear and corrosion over traditional chrome and nickel electrolysis plating processes. These valves go through an oxiding and polishing process that creates an extremely smooth surface finish that's easy on valve guides, and there's nothing to flake off and get trapped between the valve and guide to cause seizure or wear! Kibblewhite Black Diamond valves are designed using Finite Element Analysis software, with profiles tested on Kibblewhite's computerized flow bench to provide excellent flow characteristics. These strong, reliable, and lightweight valves are your ticket to ultimate valvetrain performance!

Not Yet Reviewed

$31.01

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$37.55

S&S Cycle Early Twin Cam Gear Drive Camshaft Kits

Step up the performance of your Twin Cam with affordable S&S Cycle Early Twin cam gear drive camshaft kits. Some kits allow you to use stock springs, and the complete kits include a gear drive camshaft set and inner gears, an outer cam drive gear kit, and a camshaft installation kit. Performance doesn't have to leave you with empty pockets. S&S Cycle Early Twin Cam gear drive camshaft kits can save you time and money, while providing the added power that you want.

Not Yet Reviewed

$948.95

S&S Cycle Early Twin Cam Easy Start Gear Drive Camshaft Kits

S&S Cycle Early Twin Cam Easy Start gear drive camshaft kits offer more performance for less money, and more time to enjoy riding. The Easy Start kits allow your stock starter to start any engine and most can be used with stock valve springs. Plus, they are designed to greatly improve valve timing accuracy by eliminating timing chain lash. Twin Cam kits include cams with inner gears and installation kits. Installation doesn't take long and S&S offers many choices to meet your engine size and compression ratio. Here's an easier way to increase performance without emptying your wallet--S&S Cycle Early Twin Cam Easy Start gear drive camshaft kits.

Not Yet Reviewed

$1,070.95

Biker's Choice Domed Ignition Covers

Complete your engine's curves with Biker's Choice domed ignition/points covers. These covers are beautifully chrome plated and their design makes them strong. Complement your engine with one of these ignition covers from Biker's Choice.

Not Yet Reviewed

$19.99

S&S Cycle Outer Camshaft Ball Bearings

S&S Cycle outer camshaft ball bearings are high-strength, precision-made OEM replacements for the stock camshaft outer bearings that mount in cam plates of specific Big Twin engines. Recommended when installing cams, they will provide the proper fit and performance, just like the originals they are replacing.

Not Yet Reviewed

$16.95

Feuling Parts Race Series Lifters

Feuling Parts Race Series lifters are a high performance upgrade for your motorcycle. Full-travel hydraulic or solid roller lifters are machined from a steel body for large-lift camshafts in standard or oversized OD applications. They will maintain proper oil flow to the top-end, increasing engine rpm and valvetrain stability, while decreasing valve float. This promotes maximum valve lift, with more horsepower and torque output. A high-volume oil pump is recommended for best results. Race Series lifters are drop-in replacements on both strip and performance street engines. They're available to fit a variety of bike makes and models, including Buell and Harley-Davidson®.

Not Yet Reviewed

$298.95

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$307.95

Feuling Parts Camplate PSI Testers

Feuling Parts camplate PSI testers are a must for any Harley-Davidson® Twin Cam engine builder. Bench-test each camplate before installation, cycle the pressure relief valve—testing the operation and ensuring that the valve moves freely, and seats and seals each time. Any leakage at the relief valve will reduce oil pressure. These camplate support tools let you know what PSI the relief valve opens; the spring tension can be adjusted to achieve the desired pop off PSI. Testers include: * Air regulator * 0-100 psi pressure gauge * Gaskets and needed hardware * Tool fits all Twin Cam engine camplates

Not Yet Reviewed

$202.95