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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...
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 daily driver.
Showing In Stock Items. Show All 649 Items.
Allstar Performance 1:1 Ratio Pulley Kits
Allstar Performance 1:1 ratio pulley kits are lightweight, double-groove aluminum pulleys. They include crank and water pump pulleys and belts for use with Allstar block or head-mount power steering pumps. Order the model recommended for your engine application.
( 14 )
$114.99
Summit Racing™ Pro SBC Camshafts
Are you looking for a great made-in-America hydraulic roller cam for your small block Chevy? Summit Racing's™ new Pro SBC camshafts are affordable and utilize the latest lobe design technology. Starting with American bearing steel billets, the cams are precision-machined on a modern CNC grinder with CBN diamond wheels for unmatched quality. They're designed with optimal valve events and greater lift for maximum performance. With four levels and performance options to select from, Pro SBC camshafts will deliver just the idle characteristics you're looking for.
( 30 )
$279.99
Summit Racing™ Pro LS Upgraded Rocker Arms
Summit Racing™ Pro LS upgraded rocker arms feature high-quality rocker bodies that utilize the factory style pedestal mount. They are made of high-grade cast steel construction to ensure long-lasting durability and performance. This design replaces the factory bearing and powdered metal trunnion and utilizes a captive bearing design and a bearing steel trunnion. These rocker arms are a perfect upgrade for higher rate springs and performance camshafts. Summit Racing™ Pro LS upgraded rocker arms come preassembled with heavy-duty trunnion kits, which saves you time and the additional cost of an installation tool. Features include: • New body casting includes thicker webbing in critical areas for increased strength • Additional oiling provisions for the bearings • Heavy-duty clips or retainers • Durable captive bearing design and bearing steel trunnion
( 25 )
$25.99
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$328.99
Summit Racing™ Pro SBF and 303+ Hydraulic Roller Cams
Are you looking for a great made-in-the-USA cam for your 5.0L H.O. engine? Pro SBF and 303+ cams start with American bearing steel billets, the cams are precision-machined on a modern Landis CNC grinder with CBN diamond wheels for unmatched quality. Still thinking in terms of LSA and duration splits? These cams are designed on a whole other level by tuning each of the four valve events separately. Having a cam with attitude doesn't mean it has to be a dog at low rpm. We've tuned each of the four valve events to maximize power and torque in the range you will be running in. You CAN have your cake and eat it too. Summit Racing's™ affordable E303 Plus, B303 Plus, and F303 Plus are designed to tune easily and have the idle you're looking for. We've applied the latest lobe technology, and the valve events have been tweaked for modern intake manifolds and cylinder heads. The Pro SBF lineup ranges from a 204-duration daily driver tow cam to a 252 duration 8k rpm barn-burner. They are ground in fine increments to match your specific engine's top-end, displacement and intended rpm range. The lobes are stable to high-rpm and easy on the valvetrain, but we've added lift to take advantage of the high-lift flow of the latest cylinder heads. They are more aggressive with more overlap than their 303+ brothers for more attitude.
( 16 )
$270.99
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$279.99
COMP Cams Ultra Pro Magnum Rocker Arms
Utilizing years of valvetrain design experience, the latest FEA stress analysis technology, and an exhaustive testing regiment (dyno and Spintron), COMP Cams engineering team left no detail to chance. Everything from casting techniques to valve spring clearance was scrutinized to ensure that Ultra Pro Magnum rocker arms not only lived up to the lofty standards of their predecessor, but also took stud mount rocker performance, stability, and value to a whole new level. The most noticeable advancement centers around their nearly unbreakable investment cast 8650 chromoly body. The arched, web-like design delivers a nearly 29 percent increase in strength and rigidity, while reducing the moment of inertia and optimizing the dynamic balance. The resulting rockers maximize lift and valvetrain control at high rpm. The increased retainer and valve spring clearances of the new design enable the use of large-diameter valve springs, retainers, and locks, without clearance or fitment issues. The new black oxide exterior finish offers a distinctive appearance, along with long-term corrosion resistance. The COMP Cams Ultra Pro Magnum rocker arms feature an oversized trunnion and precision-sorted needle bearings designed for use with high-load valve springs. These unique rockers also feature hardened roller tips for reduced friction and elimination of the valve stem "side loading" that causes premature valve guide wear.
( 206 )
$45.95
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$622.95
Summit Racing™ V-Belt Pulley Kits
Summit Racing™ V-belt pulley kits make an ideal replacement as a standard ratio pulley kit for worn stock parts. They're available in a choice of chrome plated or black painted finish—and include crankshaft pulley, water pump pulley, power steering pulley, alternator pulley, the brackets, and hardware. Order the kit designed for your vehicle and engine application.
( 129 )
$131.99
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$147.99
Summit Racing™ Pro SBC Cam And Lifter Kits
Are you looking for a great made-in-America hydraulic roller cam for your small block Chevy? Summit Racing's™ new Pro SBC cam and lifter kits are affordable and utilize the latest lobe design technology. Starting with American bearing steel billets, the cams are precision-machined on a modern CNC grinder with CBN diamond wheels for unmatched quality. They're engineered with optimal valve events and greater lift for maximum performance. With four levels and performance options to select from, Pro SBC camshafts will deliver just the idle characteristics you're looking for.
( 5 )
$431.98
Trick Flow® Roller Rocker Arms
Accurate valve timing is the key to making horsepower—and Trick Flow® roller rocker arms can help. Excellent for use with stock and aftermarket cylinder heads, these arms feature heat-treated CNC-machined bodies, premium needle-bearing fulcrums, roller tips, and a machined relief for improved valve spring clearance. Trick Flow® roller rockers come complete with polylocks and are offered individually or in sets of 16. They're available in a variety of fitment options for applications from 1955 and up.
( 66 )
$31.99
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$509.99
COMP Cams Ultra Pro Magnum XD Roller Rocker Arms
Built to outlast and outperform in accuracy and strength, Ultra Pro Magnum XD roller rocker arms are engineered from durable 8650 steel and include a machined billet pushrod seat insert for a wide range of super accurate ratios. A unique and wide ratio range to fit almost any popular application from 1.5 to 1.8 in 0.5 in. increments for Chevy and 1.6 to 1.73 for various Ford applications is available. These Ultra Pro Magnum XD rockers are fully rebuildable and boast precision-sorted needle bearings and hardened roller tips. And, they work with most diameter springs and retainers. The XD design utilizes advanced FEA and CAD design and development to improve strength, stiffness and MOI (moment of inertia) optimization for drag and circle track applications.
( 60 )
$55.95
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$649.95
Summit Racing™ Pro Series Stainless Rocker Arms
Summit Racing™ Pro Series stainless rocker arms will pay big dividends in performance! The arms are machined from premium-quality material to provide high yield strength and resist deflection, as well as extraordinary fatigue resistance. They feature full complement friction-reducing needle bearings—and incorporate an exceptional design that provides plenty of clearance for higher open valve spring pressures. Each rocker body includes polished top lines and is carefully assembled and inspected to provide the finest rocker arms available in today's racing and high performance industry. Order the set with size and ratio recommended for your engine application.
( 37 )
$234.99
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$244.99
Summit Racing™ Aluminum Roller Rocker Arms
These rocker arms are CNC-machined from high-strength extruded aluminum and are heat-treated for reliability. These aluminum rockers are available in a variety of ratios for small or big block vehicles. To guarantee silky smooth valve operation, we gave them premium needle-bearing fulcrums and roller tips. Includes lock nuts.
( 75 )
$28.99
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$444.99
Proform Super-Street Roller Rocker Arms
These Proform Super-Street roller rocker arms will help rid your engine of internal friction. They feature a race-proven, cage bearing fulcrum and roller tip. The Super-Street rocker arms not only unleash horsepower, but they also lengthen valvetrain component life and reduce wear and tear on valve stem tips. Proform rockers are precision-machined to ensure consistency and ratio accuracy, and they have a great looking anodized finish.
( 128 )
$26.99
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$335.99
BTR LS Shaft Rocker Kits
Performance-minded engine builders know there's an inherent issue with valvetrain deflection when using stock rocker arm mounting in Chevrolet Gen III-IV-cylinder heads. BTR LS shaft rocker kits are designed to significantly reduce deflection, thereby improving both performance and durability. Each kit features technology typically only found in high-end shaft rocker systems. These shaft rocker systems consist of a billet steel stand equipped with four shafts per cylinder head, fasteners and bearings. The shafts are made from genuine 52100 bearing steel. Each pair of rockers has five fasteners mounting them to the rocker stand, compared to the traditional single bolt per rocker configuration. These shaft rocker kits are ready for assembly using your existing stock rockers. (Rocker arm shafts are also available individually.)
( 17 )
$469.99
Harland Sharp Original Roller Rockers
If you plan on adding performance to your street machine or building a serious racer, Harland Sharp Original Series roller rockers are recommended for you. Using the very latest manufacturing technology and only the very finest materials, the Original Series rockers incorporate race-proven enhancements, such as improved strength, performance, and lighter weight over conventional rocker arm designs. Don't settle for any old rocker arm--go with a true leader in roller rocker arm technology--Harland Sharp.
( 179 )
$24.50
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$999.99
BTR Rocker Arms
No more broken rockers! BTR rocker arms are designed to provide superior movement of inertia, compared to roller tip rockers, for max RPM. Their all-new 1.7 ratio drop-in design is perfect for cathedral port and square port (exhaust only), but will also work on the exhaust side of the L92/LS3 head. Constructed of bare steel, these BTR rocker arms are 46 percent stronger than stock Chevrolet rockers in FEA analysis--and feature an extended tip design that will allow for higher valve lift and improved valve tip durability.
( 3 )
$9.99
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$509.99
Harland Sharp Heavy-Duty Roller Rockers
Don't trust your engine investment to just any no-name rocker manufacturer. Harland Sharp heavy-duty roller rockers are specifically designed for the heavy spring pressure and high-lift geometry of highly modified engines. They're also engineered with wider bodies, resulting in increased rocker strength and longevity. So, when your engine requires extra durability, use Harland Sharp heavy-duty roller rockers.
( 60 )
$38.99
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$1,438.99
Summit Racing™ 303 Plus Camshaft and Lifter kits
Are you looking for a great made-in-the-USA cam for your 5.0L H.O. engine? Summit Racing's™ affordable new line of 303 Plus camshaft and lifter kits are just what you need. The E303 Plus, B303 Plus, and F303 Plus are designed to tune easily and have the idle you're looking for. We've applied the latest lobe technology, and the valve events have been tweaked for modern intake manifolds and cylinder heads. Starting with American bearing steel billets, the cams are precision-machined on a modern CNC grinder with CBN diamond wheels for unmatched quality. The Summit Racing™ 303 Plus camshafts are available in multiple rpm operating ranges, durations, and other performance options.
( 1 )
$509.91
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$518.68
Vintage Air Ford Front Runner Engine Drive Systems
Vintage Air offers their totally cool Front Runner engine drive systems for your small block Ford! With a unique design focused on performance, Vintage Air Ford systems are strong, compact, and extremely good looking. They feature a patented, one-piece, forged aluminum timing cover with integral accessory mounts and utilize a spring-loaded tensioning system for no-nonsense, trouble-free operation. Systems are available for power steering with or without pump and non-power steering applications in your choice of bright or black hard coat finishes. Vintage Air Ford Front Runner engine drive systems may include: * ARP stainless 12-point bolt and hardware * 170 amp alternator * Dayco OEM tensioner * Timing cover gasket set * Dayco serpentine drive belt * Power steering pump * 4-bolt crankshaft pulley * High performance water pump * Water pump pulley * Power steering pump pulley
( 11 )
$1,640.99
Summit Racing™ Cast Steel Roller Tip Rocker Arms
For the hardest working part of your valvetrain, use Summit Racing™ cast steel roller tip rocker arms. Our chromoly steel long-slot rockers will give you a long service life and allow for less deflection and valve guide scrubbing. Each rocker features a precision-ground roller and includes a grooved, heat-treated rocker ball and nut.
( 104 )
$16.99
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$182.99
Summit Racing™ Pro SBC LS Firing Order Hydraulic Roller Cam and Lifter Kits
Summit Racing™ Pro SBC LS firing order hydraulic roller retrofit cams are available in seven stages--from a small smooth idle cam capable of towing, to a big duration stomper that's ready to go bracket racing. Utilizing the LS firing order on a traditional small block Chevy improves the engine in several ways, including exhaust sound and harmonic improvements. These kits include a premium camshaft and drop-in link bar style hydraulic roller lifters. Best of all: these Pro SBC LS firing order hydraulic roller retrofit cams are precision-ground in the USA on USA billets! Order the cam recommended or your application.
( 2 )
$941.83
COMP Cams Magnum Roller Tip Rocker Arms
One way to increase power is to increase lift. That's what makes COMP Cams Magnum roller tip rocker arms so popular. They're one of the highest lift rockers you can get outside of racing. And, along with the lift, you also get a ball pivot roller tip to prevent valve stem and guide wear.
( 290 )
$20.95
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$240.95
Summit Racing™ Pro SBC LS Firing Order Hydraulic Roller Camshafts
Summit Racing™ Pro SBC LS firing order hydraulic roller retrofit cams are available in seven stages, from a small smooth idle cam capable of towing, to a big duration stomper that's ready to go bracket racing. By utilizing the LS firing order on a traditional small block Chevy improves the engine in several ways. The benefits include improved combustion chamber cooling for reduced detonation, more power and torque gains, better mixture distribution, along with reductions in vibration and bearing wear. Best of all—these Pro SBC LS firing order hydraulic roller retrofit cams are precision ground in the USA on USA Billets! Order the cam for your application needs.
( 12 )
$269.99
Jesel Sportsman Series Shaft Rocker Arms
Since their release, Jesel Sportsman Series shaft rocker arms have proven themselves to be the ultimate replacements for inadequate stud rocker assemblies on OEM and aftermarket cylinder heads. The 2024 aluminum bodied rocker arms are designed to withstand open spring pressures of up to 900 lbs., while maintaining precise valve lash settings. They are designed to bolt on with little to no cylinder head modifications and in most cases still fit under a stock valve cover. The rocker geometry is preset and engineered using the common valve supplied with the specific cylinder head to provide a bolt-on-and-go installation. If you're still spending aggravating hours adjusting your stud rockers only to have to repeat the procedure the next weekend, Jesel Sportsman Series shaft rocker arms are your solution. Choose a set designed for your application.
( 24 )
$86.00
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$1,765.00
Summit Racing™ Stamped Steel Roller Tip Rocker Arms
Get the horsepower and durability you want at a price that suits you with these stamped steel roller tip rocker arms from Summit Racing™. Formed from heat-treated steel, their long slot design and precision-ground roller will deliver the performance you're after--even in high-lift applications. Each set includes rocker arms, grooved rocker balls, and nuts.
( 90 )
$129.99
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$145.99
