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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.
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COMP Cams Conical Valve Spring Kits
These cone-shaped springs from COMP Cams are for high performance street applications where the heads are not removed and machined for larger springs. The springs will work without any modifications. The kits also include retainers, locks, and seals.
Not Yet Reviewed
$604.95
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.
( 33 )
$516.95
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$901.95
BTR Conical Valve Springs
BTR conical valve springs are designed to maintain contact between your valvetrain components, so the valve motion will follow the cam profile. Each replacement spring is manufactured to exact specifications, as listed, for precise fitment. Conical valve springs from Brian Tooley Racing are a great choice for your application—trusted by engine builders worldwide!
( 1 )
$389.99
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$449.99
aFe Magnum FLOW Pro 5R Air Filters
aFe Magnum FLOW Pro 5R air filters are available for a wide range of vehicle-specific applications, as well as universal-fit models. With up to a 38 percent increase in flow over stock, Pro 5R air filters feature factory-oiled cotton media for maximum performance. Their progressive bump seal design and polyurethane frame makes them extremely durable and simple to install. The filters are available in different sizes and styles, including panel and conical. * Washable and reusable for multiple cleaning cycles: Pro 5R filter media features five layers of progressive oiled cotton gauze for maximum performance. Deep, open pleats allow for increased surface area, flow, and dust holding dapacity * Pro 5R filter media: Progressive layering allows the filter to flow at high levels even when dirty. This media is perfect for street and/or track use. Pro 5R filters are easily recharged with aFe's Power Cleaner and blue air filter oil. * Rounded deep open pleats: aFe Power performance air filters use a rounded, evenly spaced pleat design which allows for more usable filter surface area, providing increased flow and greater dust holding capacity. * Progressive bump seal: This pliable sealing surface conforms to even the most uneven filter housing, making for a perfect filter fit and sealing surface every time. This design eliminates the use of gaskets or sealants and always goes back to its original form.
( 1 )
$139.00
aFe Magnum FLOW Pro DRY S Air Filters
aFe Magnum FLOW Pro DRY S air filters are available for a wide range of vehicles. They feature three layers of oil-free synthetic media, making them a very easy-to-maintain performance air filter. With a progressive bump seal design and polyurethane frame, they're also extremely durable and simple to install. * Washable and reusable for multiple cleaning cycles: Pro DRY S filter media features three layers of progressive synthetic (Dry) media for maximum convenience. Deep, open pleats allow for increased surface area, flow, and dust holding capacity. * Pro DRY S filter media: This media is best suited for street use. Pro DRY S filters are easily recharged with aFe's Power Cleaner. * Rounded deep open pleats: aFe Power performance air filters use a rounded, evenly spaced pleat design which allows for more usable filter surface area, providing increased flow and greater dust holding capacity. * Progressive bump seal: This pliable sealing surface conforms to even the most uneven filter housing, making for a perfect filter fit and sealing surface every time. This design eliminates the use of gaskets or sealants and always goes back to its original form. * Full polyurethane frame: All aFe Power flat panel performance air filters are constructed with a full 360-degree polyurethane frame. Unlike other materials that degrade after repeated heat cycles in an engine bay, polyurethane maintains its original molded shape.
( 2 )
$149.00
COMP Cams HRT Max Power Master Camshaft Kits
COMP Cams HRT Max Power Master camshaft kits take the guesswork out of choosing the right valvetrain-upgrade package to achieve your desired performance with your Dodge Gen III Hemi. These Max Power kits feature the "low shock technology" of COMP's HRT camshafts with lobe profiles designed to maximize horsepower and improve stability at higher rpms. The profiles are also easier on valve springs, enhancing durability and reducing load loss. By dyno testing with many combinations of valvetrain components, COMP Cams' engineers have created these more complete, perfectly matched engine camshaft packages for your Hemi application in three different stages of performance. COMP HRT Max Power MK-kits include: * HRT Cam * Lifters * Pushrods * Conical or Beehive springs * Steel retainers * Locks * Spring seats * Valve seals * Phase limiter (VVT Hemi kits only)
( 5 )
$1,644.95
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$1,839.95
Summit Bucks
S&S Cycle Heavy-Duty Valve Spring Kits
S&S Cycle offers heavy-duty valve spring kits to upgrade your bike's performance—so you don't have just another "me too" motorcycle. Order the S&S Cycle heavy-duty valve spring kit designed for your bike's application. Features and specifications: * Available for M8 2017-2024 Harley-Davidson® models * Kit includes springs, top collars, keepers, valve seal/bottom collars * Works well with cams up to .605 in. lift * High performance conical single wire spring
Not Yet Reviewed
$395.95
COMP Cams HRT Max Power Camshaft Kits
COMP Cams HRT Max Power camshaft kits take the guesswork out of choosing the right valvetrain-upgrade package to achieve your desired performance with your Dodge Gen III Hemi. These Max Power kits feature the "low shock technology" of COMP's HRT camshafts with lobe profiles designed to maximize horsepower and improve stability at higher rpms. The profiles are also easier on valve springs, enhancing durability and reducing load loss. By dyno testing with many combinations of valvetrain components, COMP Cams' engineers have created perfectly matched engine camshaft packages for your Hemi application in three different stages of performance. COMP HRT Max Power CK-kits include: * HRT Cam * Pushrods * Conical or Beehive springs * Steel retainers * Locks * Spring seats * Valve seals * Phase limiter (VVT Hemi kits only)
Not Yet Reviewed
$1,222.95
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$1,363.95
COMP Cams Valve Springs
Valve springs are one of the most critical and overlooked components in your engine. They must be matched to your cam in order for the engine to reach its full potential. It does absolutely no good to install a cam that will perform up to 8,000 rpm if you do not have the correct springs. Use the only valve springs that will give the recommended spring pressure with the valve both on the seat and at maximum lift. COMP Cams valve springs are offered in single and dual styles to meet your cam requirements.
( 255 )
$550.95
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$624.95
Edelbrock E-CNC 185 Cylinder Heads
Edelbrock E-CNC 185 cylinder heads feature fully CNC-machined intake ports, combustion chambers, and exhaust ports for improved performance. Their all-new design delivers optimal airflow for maximum horsepower and torque in high performance street vehicles and small engine racing applications. The heads maintain the stock 23 degree valve angle and the intake flange is drilled to accept 1986 and earlier intake manifold designs. The CNC-machined ports give you a 64cc combustion chamber, a 185cc intake runner, and a 75cc exhaust port.
( 1 )
$1,431.50
Clearance
VEGE Remanufactured Cylinder Heads
VEGE Remanufactured cylinder heads are a popular choice for performance and value. With its advanced and efficient production process, backed by more than eight decades of experience, VEGE is able to supply remanufactured cylinder heads with a level of quality that equals that of new OEM products—at extremely competitive prices. The rebuilt cylinder heads are carefully inspected, cleaned, and then fully machined and assembled with top-of-the-line components. Unless otherwise noted, the assemblies include a cast iron or aluminum cylinder head, intake and exhaust valves, valve springs, retainers, locks, stem seals, rocker arm studs, and more. Many heads include rocker arms. Nearly a thousand models are available, for fitment on countless applications.
( 43 )
$290.99
Ford Performance Parts Z2 Velocity Vane Cylinder Heads
Ford Performance Parts Z2 Velocity Vane cylinder heads improve power throughout the rpm range. Developed with advanced computer-aided engineering simulation tools, Ford Z2 aluminum heads feature their unique Velocity Vane intake port design that delivers outstanding street/strip power. These high performance cylinder heads are direct bolt-ons for Ford 289/302/351W engines, and they retain OEM exhaust, intake, and accessory mounting locations. Ford Z2 Velocity Vane cylinder head specs: * Cast from prime 356 T6 aluminum * Heads retain Ford OEM intake and exhaust port location and flange * Velocity Vane in port floor directs airflow around the valve stem, leading to more horsepower and torque throughout the full power range * 20 degree inline valve angle * Premium stainless steel valves: 2.05 in. intake, 1.60 in. exhaust valves * PAC 1219X conical-style valve springs with machined retainers and 10 degree machined valve locks--most hydraulic cams can be used with these springs * Valve spring closed pressure: 145 lbs. at 1.800 in. * Valve spring open pressure: 358 lbs. at 1.175 in. * Coil bind at 1.100 in., 0.650 in. max lift * Includes laser-cut guide plates for use with 5/16 in. pushrods and 7/16 in. rocker studs * Steel alloy intake and exhaust valve seats * Manganese-bronze valve guides * 63cc combustion chamber
( 2 )
$1,106.99
COMP Cams HRT Stage 3 Camshafts
COMP Cams HRT Stage 3 camshafts use the newest and most advanced lobe designs in order to produce some of the highest average power and torque available. The "Low Shock Technology" features lobe profiles engineered to maximize horsepower while improving stability at higher engine speeds. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. COMP Cams HRT Stage 3 cams receive the Micro Surface Enhancement (MSE) finishing process as a standard feature to increase strength and performance by reducing surface peak roughness. This also provides noticeable improvement in the effective load bearing area, thus allowing for much higher loads. Order the model recommended for your vehicle and engine application.
( 1 )
$1,330.95
Manley NexTek Valve Spring and Retainer Kits
Manley NexTek valve spring and retainer kits are designed and manufactured for optimum consistency, run after run, lap after lap. They are manufactured from super clean high-tensile chrome silicon steel that has been shot peened to MIL specs for maximum fatigue life. Proven to have less load loss than many other springs, they exhibit superior fatigue life and enhance valvetrain stability--everything that counts in winning races!
( 1 )
$475.28
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$527.72
