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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COMP Cams Xtreme Energy Camshafts

COMP Cams Xtreme Energy camshafts employ the latest cam technology to provide maximum performance. Whether your use is off-roading, towing, or street performance, there's an Xtreme Energy cam available for you. By using an aggressive lobe profile, these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers—while delivering increased engine vacuum. Hundreds of models are available for fitment on vehicles from 1955 to the present. Select the cam designed for your application.

4.59 out of 5 stars ( 349 )

$267.95

Silv-O-Lite Hypereutectic Pistons

Get the most from your hard-earned dollars with Silv-O-Lite hypereutectic pistons. These pistons utilize aluminum alloy high in silicon for greater strength plus scuff and seizure resistance. Silv-O-Lite pistons have improved groove wear and resist cracking in the crown area where operating temperatures are severe. Silv-O-Lite hypereutectic pistons feature reinforced top lands and their proprietary process of diamond finished skirts. These aftermarket pistons are available for many applications from your light truck to your auto or import. Spend wisely and choose replacement pistons that will work hard for you--Silv-O-Lite hypereutectic pistons.

4.14 out of 5 stars ( 76 )

$45.95

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$91.91

Wiseco Marine 2-Stroke Forged Series Piston Kits

The Wiseco legacy is rooted in 2-stroke piston manufacturing and performance, dating back to 1941--over 80 years ago. Today, their pistons are the result of decades of experience, incorporating the latest in 2-stroke piston manufacturing and design to deliver the performance Wiseco built its name on. Wiseco Marine Forged Series 2-stroke piston kits are engineered, designed, and machined for each specific engine. The improved tensile strength of the forged aluminum material optimizes strength and service life, while these dedicated forgings, along with additional lightening operations, allow for optimized strength-to-weight ratio. Each Wiseco forged piston kit includes high-quality piston ring(s), wrist pin(s), and circlips. Select the kit with the proper specs for your marine engine.

Not Yet Reviewed

$101.99

JE Pistons

With more than 70 years of experience, it's no wonder JE Pistons is the world's leader in high performance pistons. How do they stay in front? Easy—by constantly improving designs, materials, and production processes, using state-of-the-art machining techniques, and incorporating other methods to keep costs low. The result is a line of great, economically priced pistons with features such as radiused valve reliefs (where applicable), forced piston-pin oilers, diamond-turned skirts, gas ports, and more! These forged aluminum pistons are available in various styles and sizes for fitment with specific engine applications.

Not Yet Reviewed

$899.99

JE Pistons Sport Compact/European Pistons

As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for European, import, and sport compact applications. Engineered, forged and machined, JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. JE Pistons sport compact/European pistons are engineered for extreme applications, up to and including professional competition. In this environment, the higher compression ratios, highest boost, or heavy nitrous usage necessitate the higher tensile strength of 2618 aluminum alloy. Their domed or dished tops require no deburring or preparation and feature smooth-flowing radii for excellent flame travel. High-quality wrist pins, locks, and JE Pro Seal premium piston rings are included. JE Pistons' performance has been proven in victory lane time and time again. Available individually and in sets, equip your engine with the best in forged pistons. Features: * Designed specifically for each engine and use application to provide optimized performance durability * Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin * Skirt coating (depending on application) reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise * Accumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power

Not Yet Reviewed

$299.99

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$1,124.99

Pro-X Racing Parts Cam Chains

Pro-X Racing Parts cam chain line is supplied with the successful cooperation of Borg Warner in Japan. Borg Warner is a leading name in the industry and is known as one of the main suppliers to a variety of OEM companies worldwide. The camshaft chains have proven quality and with the teamwork of Pro-X and Borg Warner, a complete line of cam chains for MX, ATV, and street bikes is available. Choose the proper fit for your machine.

Not Yet Reviewed

$41.99

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$74.99

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