Engines & Engine Parts

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...

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Melling AFM/MDS Delete Combo

Melling offers their engine cylinder deactivation kits for converting active fuel management engines to non-active fuel management versions. These AFM (active fuel management) or MDS (multi-displacement system) delete combos include a variety of components to help complete the changeover. Order the Melling AFM/MDS delete combo best suited for your application. Each kit includes: * MDS delete camshaft (1) * Non-MDS hydraulic roller lifters (16) * Lifter guides for Non-MDS engines (4) Application dependent components include: * AFM/MDS solenoid plugs (4) * Camshaft thrust plate (1) * Variable Valve Tming (VVT) oil control valve (1) Notes: * When installing a delete cam, the active fuel management lifters must be replaced using non-active fuel management lifters. * The valve lifter guides used in non-active fuel management engines differ from those used in active fuel management engines and must be replaced for this application. * The AFM/MDS solenoids must be replaced using non-MDS plugs. * The vehicle engine control module/powertrain control module must be reprogrammed to turn off the active fuel management system in the operating software. * Pushrod length must be checked during installation to verify the correct length.

4.25 out of 5 stars ( 4 )

$634.99

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$1,504.99

S&S Cycle Milwaukee 8 Chain Drive Camshaft and Dynojet PV-3 Kits

S&S Cycle Milwaukee 8 chain drive camshaft and Dynojet PV-3 kits are the first of their kind, offering a 475 cam, tuner in chain drive, and true 100+ hp at the wheel in one package. The kits are designed to work specifically with S&S's Stealth air cleaner kits and Mk45 mufflers with a stock header or their Eldorado exhaust system. Features and benefits: * Bolt-in performance * No need for expensive dyno tuning * Display vehicle data channels in real-time * Weather-resistant for use in all conditions * High-contrast display, viewable in direct sunlight Please note: * PV-3 module is preloaded with calibrations developed by S&S. These calibrations are secure and do not allow for any modifications. * Calibrations do not work on any Harley-Davidson® Softail models. * Calibrations do not work on 2020+ Harley-Davidson® Touring Models.

Not Yet Reviewed

$566.06

S&S Cycle Exhaust Valves

S&S Cycle's exhaust valves provide a premium high performance solution for Harley-Davidson® and other V-Twin motorcycles. The exhaust valves on a HD® motorcycle primarily serve to modulate exhaust sound, allowing for quieter operation in certain modes and louder performance in others. They can also contribute to improved performance by optimizing exhaust gas flow and backpressure, particularly at lower rpm's. Exhaust valves, often controlled electronically, can be opened or closed to adjust the exhaust sound. When closed, the exhaust gases pass through a silencer, resulting in a quieter tone. When open, the exhaust gases flow more freely, leading to a louder, more aggressive sound. This allows riders to choose between a more comfortable, quiet ride and a louder, more performance-oriented sound. Select the exhaust valves designed specifically for your bike's setup.

Not Yet Reviewed

$54.95

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$61.95

Melling Stock Replacement Camshafts

Perfect for replacements or stock rebuilds, Melling stock replacement camshafts can restore your engine's true potential. They're available in a variety of styles, including hydraulic flat tappet, roller tappet, and roller follower; and mechanical flat tappet. Melling offers affordable, quality engine parts, including a full line of cams for cars, light trucks, and imports as far back as the mid-1950s. If you want quality that you can count on at a price that's hard to beat, order the Melling stock replacement camshaft designed for fitment on your vehicle.

4.44 out of 5 stars ( 18 )

$459.99

Dorman Crankshaft Position Sensors

Dorman crankshaft position sensors are direct-fit replacements that are easy to install and offer long, reliable service. They are constructed from high-quality plastic with metal-reinforced mounting points to protect against failure. Dorman sensors accurately measure crankshaft location to detect misfires and control engine timing. They are manufactured to strict engineering quality standards and are available for a wide variety of applications.

3.0 out of 5 stars ( 2 )

$48.95

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