Engines & Components
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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.
Replace worn out breather gears with the heavy-duty steel versions from S&S Cycle. Manufactured from industry-leading materials and using up-to-date equipment, they ensure everlasting reliability and enduring value. Order the S&S breather gears designed for your motorcycle application. Product features include: * All-steel construction for superior dimensional stability; abrasion * Welded-in screen * Higher flow than stock * Elongated breather pocket scavenge hole for increased solution * Improved oil scavenging from breather gear pocket * Options: Standard diameter for replacement or new builds or Plus .030 in. diameter for damaged engines
Not Yet Reviewed
$169.95
Cloyes Race Billet True Roller timing sets provide race-ready performance! These sets feature sprockets machined from premium billet steel on state-of-the-art CNC equipment to ensure the highest quality and consistency. The sprockets are induction-hardened and oil-quenched by Cloyes' in-house, multi-stage heat treat process. Sets include a Cloyes Premium True Roller chain—which features full roller action and superior strength. Side plates are cut and shaved from high-strength steel and are heat-treated for maximum fatigue resistance. Their .250 in. rollers are cold-rolled and hardened to exacting standards, increasing load and rpm capabilities. Cloyes Race Billet True Roller Speed Sets are offered with a choice of 3-or 9-keyway crank sprockets, providing multiple valve timing settings. These sets are hand-matched to qualify center distance and runout, ensuring the best performance with every set!
( 99 )
$121.99
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$261.99
Cloyes Original race true roller timing sets feature full roller-action chains made from high-strength steel for superior durability. The cam sprockets are made from heat-treated cast or ductile iron, while the crank sprockets are machined from heat-treated, high-carbon steel for strength. With three keyways for adjustability (4 degrees advanced, 4 degrees retarded, and normal), Cloyes Original race true roller timing sets are hand-matched to ensure precise chain tension.
( 47 )
$124.99
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$238.99
These Summit Racing™ modular ford timing kits for 1996-2004 4.6/5.4L 2 V engines include all of the parts that you need for a complete performance rebuild without busting the bank. Parts include: * Hardened steel timing gears with a friction-reducing coating * Chains * OE-style cam gear spacers * Billet steel universal crank sprocket * PI and non-PI plastic chain guides * Universal tension arms far superior to any old auto parts store replacement kit
( 2 )
$418.99
Milodon stocks timing chain sets for street and race applications. These premium roller timing chain sets feature the highest quality chains available. They're designed with a .250 in. diameter non-split roller that actually rolls into the sprocket, thus reducing power-robbing drag. Unlike most other timing chain sets, Milodon's chain almost eliminates chain stretch problems in racing conditions. The cam and crank gears are CNC-machined from high-tensile strength, heat-treated material. Both timing chain gears use a wider tooth profile for superior strength and wear resistance and the crank gear has three key ways to allow an easy four degree advance and retard of the camshaft.
( 1 )
$125.95
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$135.95
Milodon premium roller timing chains are equal to and, in most aspects, exceed OEM-quality specifications. They feature a double-wide non-split roller design to allow for easier chain movement, yielding increased performance and longevity. These timing chains come in application-specific designs to ensure an exceptional fit, superior strength, and quality performance for your ride.
( 9 )
$87.95
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$127.95
Moroso billet aluminum spur gear oil pumps feature special anti-cavitation slots, feeder grooves, and an enlarged bypass area that is machined into the housing to bleed oil back to the inlet side of the pump. They combine to offer a smooth and consistent flow of oil, which improves the pumps' overall performance, extends engine life, and places an even loading on the distributor shaft to eliminate spark scatter. Manufactured using a proprietary casting process offering superior durability and reliability, the pump body and cover assembly are made to exact design specifications, while the gear and inner rotor shaft assemblies are matched to maintain absolute minimum clearances and provide maximum volumetric efficiency.
( 11 )
$499.49
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$766.99
S&S Cycle Milwaukee 8 gear drive cam chest kits include everything necessary to convert to gear drive for improved cam timing accuracy and eliminate the stock cam chain tensioner. All parts in each kit are matched to ensure superior quality, fit, finish and performance. Each kit includes necessary gaskets, components, and hardware required for a complete installation. S&S gear drive kits are available for water-cooled and oil-cooled motorcycle models. Select the kit designed for your bike. Features of Milwaukee 8 gear drive cam chest kits: * Oil pump and cam plate are precision-machined from billet aluminum with a blue anodized finish * Passage plugs are removable for servicing * Independent scavenge sections for the flywheel cavity and cam chest * Debris screens in both scavenge pickups * Magnet in cam helps stop debris from entering oil pump * Increased oil flow capacity on both the feed and scavenge sides * Adjustable pressure relief valve is adjustable with the unit installed in the engine * S&S Quickee Pushrods with chrome or gloss black pushrod tubes * S&S premium tappets—hand assembled to exacting tolerances; reduced valve train noise from start up to shut down * Billet aluminum tappet cuffs have a hard-anodized black coating and are stronger than stock to eliminate distortion and improve tappet stability in high-lift situations * Outer drive gears included * 465 Torque cam kits are the ideal choice for Touring bike applications * 475 kits are bolt-in cams that can produce up to 100 horsepower * 540 kits are designed to add even more stump pulling torque to your big bore M8, for those that keep the revs below 6,000 rpm—requires the addition of valve springs (included in high lift kits) and works with cams up to .605 lift * 550 kits are for use with large displacement engines—requires the addition of valve springs (included in high lift kits) and works with cams up to .605 lift
Not Yet Reviewed
$1,599.95
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$2,172.95
S&S Cycle offers 128 in. power packages with gear drive cam for a variety of Harley-Davidson© street bikes from 2017 and up. Kit details include: BIG BORE KIT: * 4.250 in. bore * Forged pistons * 11.1:1 compression ratio OIL PUMP/CAM PLATE: * Precision-machined from billet aluminum * Passage plugs removable for servicing * Independent scavenge sections for flywheel cavity and cam chest * Debris screens in both scavenge pickups * Magnet in cam chest to help stop debris from entering oil pump * Increased flow capacity on both feed and scavenge side * Pressure relief valve is adjustable with unit installed in engine * Kits now include updated oil pump with groove for optional OEM oil seal PUSHRODS: * Quickee pushrods with chrome covers TAPPETS: * Hand-assembled to exacting tolerances * Reduced valvetrain noise from start-up to shut-down * Close tolerances for low leak-down rates * Fast pump-up and superior high-RPM performance TAPPET CUFFS: * Hard anodized black coating * Billet aluminum construction * Stronger than stock material eliminates distortion * Improve tappet stability in high lift and high RPM situations CAM: * S&S 550 cam—designed for big bore applications * Gear drive kits provide improved cam timing accuracy and eliminate stock chain tensioner * Gear drive kits include outer drive gears VALVE SPRINGS: * Work well with cams up to .605 lift * High performance conical single-wire spring * Includes top collars, keepers, and valve seals/bottom collars
Not Yet Reviewed
$3,427.95
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$3,460.95
On Sale
COMP Cams Evolution magnum hydraulic roller camshafts are high performance camshafts designed for your Harley-Davidson®. They are constructed from superior-quality materials to bring the best possible performance to your ride. If you're looking to upgrade your Harley®, COMP Cams Evolution magnum hydraulic roller camshafts are must-haves.
( 1 )
$325.95
The nation's top engine builders rely on Moroso racing oil pumps because of their superior design and ability to provide consistent oil flow. They're designed to handle the extra demand required from higher engine speeds. Special anti-cavitation slots, feeder grooves, and an enlarged bypass area are machined into the housing to bleed oil back to the inlet side of the pump. They feature proprietary cast housings fitted with precision-machined gears and a precision-ground shaft for outstanding oil delivery. Each pump is 100 percent pressure-tested to stringent quality control specifications to ensure that the pump you receive will perform flawlessly.
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$102.99
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$347.99
Air Flow Research (AFR), the authority in high performance CNC cylinder heads for over 55 years, is proud to introduce its latest innovations: Custom camshafts for the small block Chevy. Specifically developed to unleash the full potential of AFR's Eliminator CNC and Enforcer As-Cast cylinder heads, these camshafts deliver race-ready gains in a drop-in solution, backed by real-world dyno testing. Crafted in partnership with Andrews Products, a name synonymous with championship camshaft innovation and precision grind quality, these new profiles extend AFR's mission to give American muscle cars the power they deserve. Key benefits: * Upgraded to industry-preferred 8620 steel for superior strength and durability * Ideal for high-RPM builds, power adder applications, and aggressive street use * Exceptional wear resistance for long-term valvetrain stability * Improved core hardness allows for more precise and consistent grinds * Excellent response to heat-treating for a hardened surface without sacrificing ductility * Trusted in top-tier racing environments—now included in every AFR camshaft Stage 1 Camshaft specs: * Cam style: Retro Fit hydraulic roller (OE roller blocks 1987-2003 require the use of a cam button) * Camshaft use: Strip/high-RPM * Camshaft manufacturers description: The AFR camshaft was developed to pair perfectly with AFR's Eliminator CNC cylinder heads. Ideal for high-RPM, track focused engines * Intake duration at .050-inch lift: 22X/23X * Valve lift with Factory 1.5 rocker arm ratio: 0.53X intake/0.54X exhaust * Valve lift with Factory 1.6 rocker arm ratio: 0.56X intake/.058X exhaust * Lobe separation (degrees): 112 * Camshaft gear attachment: 3-bolt * Computer-controlled compatible: Yes * Valve springs required: Yes
Not Yet Reviewed
$385.00
Engine braking (using one's gears to slow down) puts peak stress on the lower end bolts. Crown Automotive replacement connecting rod bolts are made of sturdy steel and can withstand greater pressures when properly torqued to the correct specs. Quality rod bolts are so crucial in engines that spin, and Crown is an industry leader in superior aftermarket parts.
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$4.99
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$9.99
Air Flow Research (AFR), the authority in high performance CNC cylinder heads for over 55 years, is proud to introduce its latest innovations: Custom camshafts for the small block Chevy. Specifically developed to unleash the full potential of AFR's Eliminator CNC and Enforcer As-Cast cylinder heads, the camshafts deliver race-ready gains in a drop-in solution, backed by real-world dyno testing. Crafted in partnership with Andrews Products, a name synonymous with championship camshaft innovation and precision grind quality, these new profiles extend AFR's mission to give American muscle cars the power they deserve. Key benefits: * Upgraded to industry-preferred 8620 steel for superior strength and durability * Ideal for high-RPM builds, power adder applications, and aggressive street use * Exceptional wear resistance for long-term valvetrain stability * Improved core hardness allows for more precise and consistent grinds * Excellent response to heat-treating for a hardened surface without sacrificing ductility * Trusted in top-tier racing environments—now included in every AFR camshaft Stage 2 Camshaft specs: * Cam style: Retro Fit hydraulic roller (OE roller blocks 1987-2003 require the use of a cam button) * Camshaft use: Strip/high-RPM * Camshaft manufacturers description: The AFR camshaft was developed to pair perfectly with AFR's Eliminator CNC cylinder heads. Ideal for high-RPM, track focused engines * Intake duration at .050-inch lift: 23X/23X * Valve lift with factory 1.5 rocker arm ratio: 0.54X intake/0.54X exhaust *Valve lift with factory 1.6 rocker arm ratio: 0.58X intake/.058X exhaust * Lobe separation (degrees): 112 * Camshaft gear attachment: 3-bolt * Computer-controlled compatible: Yes * Valve springs required: Yes
Not Yet Reviewed
$385.00
S&S Cycle offers 128 in. power packages with chain drive cam for a variety of Harley-Davidson© street bikes from 2017 and up. Kit details include: BIG BORE KIT: * 4.250 in. bore * Forged pistons * 11.1:1 compression ratio OIL PUMP/CAM PLATE: * Precision-machined from billet aluminum * Passage plugs removable for servicing * Independent scavenge sections for flywheel cavity and cam chest * Debris screens in both scavenge pickups * Magnet in cam chest to help stop debris from entering oil pump * Increased flow capacity on both feed and scavenge side * Pressure relief valve is adjustable with unit installed in engine * Kits now include updated oil pump with groove for optional OEM oil seal PUSHRODS: * Quickee pushrods with chrome covers TAPPETS: * Hand-assembled to exacting tolerances * Reduced valvetrain noise from start-up to shut-down * Close tolerances for low leak-down rates * Fast pump-up and superior high-RPM performance TAPPET CUFFS: * Hard anodized black coating * Billet aluminum construction * Stronger than stock material eliminates distortion * Improve tappet stability in high lift and high RPM situations CAM: * S&S 550 cam—designed for big bore applications * Available in both chain drive and gear drive variations VALVE SPRINGS: * Work well with cams up to .605 lift * High performance conical single-wire spring * Includes top collars, keepers, and valve seals/bottom collars CAM CHAIN TENSIONER: * Precision-machined from billet aluminum * Thicker shoe for longer wear * Direct chain oiling * Larger piston for more consistent pressure * Tighter tolerances improve stability
Not Yet Reviewed
$3,265.95
ATK High Performance Chrysler 360 Magnum 350 HP complete long block crate engines incorporate Engine Quests upgraded casting with the following benefits: * Thicker deck for greater strength * Improved design resists cracking * Superior port finish for increased flow * Water flow redesigned for greater thermal conductivity * Hardened exhaust seats * CNC-machined guides and seats Engine specifications: * HP: 350 * TQ: 430 * Block: OE Magnum roller block 1993-2001 * Bore/stroke: 4.040 in. x 3.580 in. * Displacement: 360 cu. in. * Crankshaft: OE cast * Rods: OE 6.123 in. * Pistons: Hypereutectic 9.3:1 compression * Rings: Chromoly * Camshaft: Hydraulic roller * Cam specs: 207/217 at 50 .496/.496 112 LSA * Timing chain: Double roller * Cylinder heads: New upgraded Engine Quest cast iron 62cc/172cc 1.78/1.50 * Rocker arms: Steel 1.6 pedestal rockers * Oil pan: 5 qt. OE front sump * Oil pump: Melling STD volume * Balancer: Externally balanced * Intake manifold: Edelbrock performer RPM air gap dual plane * Distributor: Pro billet RTR (Iron Gear) * Water pump: OE early pump * Carburetor: Quick Fuel 680 cfm vacuum secondary's electric choke * Fuel pump: Holley mechanical 110 gph * Spark plugs: Autolite * Spark plug wires: 8mm
Not Yet Reviewed
$6,898.99
Cam Motion Titan Series LS Performance camshafts are the company's flagship line of hydraulic roller performance camshafts for the LS engine. Optimized for superior performance, the Titan Series camshafts utilize Cam Motion's renowned smooth, quiet, and powerful cam lobes—known throughout the LS community for quiet valvetrain operation and maximum upper rpm stability. Most Titan Series LS camshafts are available ground on 5150, 8660, and the premium 8620 cam cores. Select the model and options preferred for your application. Titan Series cams are available in 3-bolt timing gear versions only. Applications previously using one-bolt camshafts will need to upgrade to the 3-bolt timing gear when installing a new 3-bolt camshaft.
( 1 )
$399.00
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$575.00
A worn oil pump drive assembly will probably trigger a check engine light and will make a funny squeaking sound that has been described as a laughing barrel of monkeys, however it is no laughing matter. The factory design poses a lack of lubrication, resulting in premature failure. Crown Automotive oil pump drives are part of the OPDA. They provide your 4.0L Jeep with the perfect fit and performance, as well as peace of mind that you have averted the possibility of an event more disastrous and costly. These oil pump drives (cam stator shafts) are superior to your stock units, offering sturdy steel construction with oil channels for proper lubrication.
Not Yet Reviewed
$35.99
Scat forged standard weight crankshafts are designed for street or race engines with substantially increased horsepower. These crankshafts are precision-ground, heat-treated, shot-peened, inspected, and micro-polished for superior tolerance control. Scat crankshafts are also nitride-hardened for superior wear resistance, have straight-shot and chamfered oil holes, and feature lightening holes in all rod throws. They also have a large radius on all journals for improved strength and wear resistance. Scat forged standard weight crankshafts are available in dozens of sizes and configurations for fitment on vehicles spanning seven decades.
( 25 )
$874.99
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$1,079.99
Lightweight Scat crankshafts equal quicker rpm! They are made from the same strong aircraft-quality forging as standard-weight cranks, but have profiled counterweights for less weight. Scat lightweight crankshafts are perfect for engines wanting quicker rpm. These crankshafts feature profiled aero-wing counterweights and have straight shot and chamfered oil holes. They are nitride-hardened, with large radii on all journals for superior wear resistance, and use lightening holes in all rod throws. Scat forged lightweight cranks are CNC-machined for absolute tolerances and symmetry, offering ease of balance and a reduced rotating weight.
Not Yet Reviewed
$2,684.99
Summit Bucks
ACDelco V-ribbed accessory belts are excellent OE-style replacements. These belts use top-quality materials chosen to ensure outstanding resistance to heat and oil—as well as the superior performance that drivers demand. Each ACDelco V-belt is built to provide unparalleled strength and reliability. Choose the size that matches the specs for your car, truck, or van, then notice the improvement in torque just by installing a new V-belt!
( 14 )
$36.99
On Sale
COMP Cams Mutha Thumpr hydraulic roller camshafts are manufactured to the strictest tolerances, rigorously tested and are checked for quality. The Thumpr lobe profiles are designed to optimize the character and sound, while providing excellent stability and a very wide power range—specific profiles are developed uniquely for the intake and exhaust. Have you ever been to the races and heard how nasty the cams sound? The Thumpr series of cams give you everyday drivability but have that nasty race engine growl! COMP Cams competitive drive, superior engineering, and cutting-edge technology is what keeps them at the fore front from any other camshaft manufacturer. So ... pick the cam for your application, then add a set of hydraulic lifters—and you will be the talk of the town!
Not Yet Reviewed
$739.95
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$1,466.95
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