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Engines & Components

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Results 1 - 24 of 109

On Sale

ATK High Performance Chevy LM7 5.3L 385 HP Long BLock Crate Engines

With ATK High Performance Chevy LM7 5.3L 385 hp long block crate engines expect big mid to upper end power and a noticeable idle. They were designed to be performance upgrades for a 1999-2007 Chevy truck LM7 or an LS swap in a hot rod. Technical specifications include: * Horsepower: 385+ * Torque: 390+ * Block: GM 5.3L iron LM7 * Bore/stroke: Up to 3.809 x 3.622 * Year range: 1999-2007 * Displacement: 323 c.i.d. * Crankshaft: OEM GM 3.622 in. stroke internally balanced 24 tooth reluctor wheel .857 in. flange * Connecting rods: OE GM forged powder metal 6.093 in. stock bolts * Pistons: Hypereutectic dish * Piston rings: Moly rings * Compression ratio: 9.5:1 compression * Camshaft: Hydraulic roller * Camshaft specifications: Custom grind * Camshaft bearings: Installed and clocked to OEM position * Cylinder heads: OE aluminum 61.15cc 1.89/1.55 * Freeze plugs: Brass installed and sealed * Rocker arms: OE powdered metal 1.7 ratio * Oil Galley plugs: Installed and sealed * Weight: 385

4.93 out of 5 stars ( 15 )

$4,189.99


$3,989.99

On Sale

King XP-Series Main Bearings

Built with enhanced tri-metal, King XP-Series main bearings have a layered copper lead construction, with a nickel plate barrier and lead/tin/copper Babbitt overlay over a steel backing--in an adhesion process that provides superior stability and durability. King's advanced control measures hit a bull's-eye, maintaining wall thickness tolerances far tighter than their competitors: an amazing +/- .0001 in. The XP-Series main bearings are narrowed for large radii crankshafts and feature enlarged, chamfered oil holes with full, 3/4 in., or 1/2 in. grooving for improved oiling. They deliver consistent and reliable performance with a high-load capacity. These race-only Xtreme Performance (XP-Series) Tri-Lecular main bearings are proven track-tough to handle the ground-shaking power of your race engine. Hundreds of sets are available; order the bearings recommended for your vehicle.

4.42 out of 5 stars ( 43 )

$55.99

$363.99


$50.39

$327.59

On Sale

King XP-Series Coated Rod Bearings

Give your engine the winning edge with King XP-Series coated rod bearings. Built off the revolutionary XP-Series tri-metal construction, King's factory-applied pMaxKote nano-composite coating takes protection to the next level without adding any additional thickness! These high performance race bearing sets are available for fitment on a wide range of specific vehicle applications. pMaxKote provides: * Superior seizure resistance * Superior cavitation resistance * Superior wear resistance * Superior protection against oil starvation

4.2 out of 5 stars ( 10 )

$17.99

$346.99


$16.19

$312.29

On Sale

VEGE Remanufactured Long Block Crate Engines

VEGE remanufactured long block crate engines are an excellent foundation for budget-minded builds. These premium-quality refurbished engines are drop-in replacements for a wide range of stock vehicles—and can be retrofitted into additional applications. Each engine is reverse-engineered to ensure that any original defects are removed. Certified technicians recondition the long blocks to factory specifications, replacing wearable parts or machining them back to OE standards. The engines are thoroughly tested and calibrated to deliver maximum performance and long-term durability. Order the VEGE remanufactured crate engine recommended for your vehicle.

3.83 out of 5 stars ( 70 )

$1,936.99

$4,785.99


$1,736.99

$4,585.99

On Sale

King XP-Series Coated Main Bearings

Give your engine the winning edge with King XP-Series coated main bearings. Built off the revolutionary XP-Series tri-metal construction, King's factory-applied pMaxKote™ nano-composite coating takes protection to the next level without adding any additional thickness! Order the replacement main bearings designed for fitment with your engine. pMaxKote™ provides: * Superior seizure resistance * Superior cavitation resistance * Superior wear resistance * Superior protection against oil starvation

4.43 out of 5 stars ( 7 )

$83.99

$338.99


$75.59

$305.09

On Sale

ATK High Performance Chevy LQ4 6.0L Short Blocks

Start your next engine build with one of these ATK High Performance Chevy LQ4 6.0L short blocks. The LQ4 is an ultra-tough basis for high-horsepower engines in their stock form, but ATK improved on it. These engines are hand-built, balanced, and blueprinted using top-quality parts. Don't waste time trying to salvage a high-mileage short block when you can get a fresh mill that is ready for your choice of components to make it your own. These ATK High Performance Chevy LQ4 6.0L short blocks include the following: * Handpicked and seasoned 6-bolt main block * Aligned and honed main bores * OE steel crankshaft * 3.622 in. stroke * OE connecting rods * Hypereutectic dish top pistons

1.0 out of 5 stars ( 1 )

$3,198.99


$2,998.99

On Sale

Summit Racing™ OEM LS Valve Covers

Summit Racing™ OEM LS valve covers make a great choice to service and maintain your vehicle's LS engine. They are made from premium materials to OEM specifications for proper fit and performance, as well as good looks under the hood. Choose the replacement valve covers for your application.

2.8 out of 5 stars ( 5 )

$71.99

$80.99


$66.99

$76.99

On Sale

Holley Aluminum LS Valve Covers

Holley aluminum LS valve covers will give your Chevrolet LS Series engines a totally new look. Manufactured from cast aluminum, they come in four different finishes, and feature a billet aluminum oil fill cap. Some valve covers in this series eliminate the need for the factory ignition coil bracket. Instead, the coils bolt directly to the valve covers for a nice angled look! Holley aluminum LS valve covers reuse the factory gaskets and bolts, will work with .750 in. lift camshafts using stock-style rocker arms, and fit all ignition coils with 72mm spacing.

4.39 out of 5 stars ( 142 )

$267.95

$849.95


$147.95

$552.95

On Sale

Summit Racing™ Forged Crankshafts

Summit Racing™ forged crankshafts offer maximum strength and the best value for your dollar! Our crankshafts are non-twist forged from certified 4340 steel. They are put through several stages of heat-treatment, and then stress-relieved and shot-peened to provide the strength and reliability you demand for your high performance application. Each journal is micro-polished and a .125 in. radius is used for increased strength. Summit Racing™ forged crankshafts help you get the most in value and performance.

4.1 out of 5 stars ( 10 )

$889.99

$1,029.99


$849.99

$949.99

On Sale

King MC-Series Main Bearings

King MC-Series engine main bearings are available for a wide range of vehicles, including models from Chevrolet, GMC, Ford, Cadillac, Hummer, Isuzu, Pontiac, and Saab. These stock replacements are machined from bi-metal silicon aluminum and sold in sets of 5 or 6, depending on your application. Main bearings hold the crankshaft in place and allow it to rotate within the engine block.

Not Yet Reviewed

$53.60

$79.99


$48.24

$71.99

On Sale

King XP-Series Rod Bearings

King XP-Series rod bearings feature advanced metallurgical and geometric technologies that meet extreme performance loads. They were developed for all performance applications that use forged steel aftermarket crankshafts and produce high loads for extended periods. King focuses on one product—bearings—and nothing else. Their innovative race-only Xtreme Performance Max Black Tri-Metal rod bearings have a 24 percent stronger overlay and 17 percent more fatigue strength by using a micro process called SecureBond. Built with enhanced tri-metal, King XP-Series rod bearings layer copper-lead construction with a nickel plate barrier and a lead/tin/copper Babbitt overlay over a steel backing in an adhesion process that provides superior stability and durability. King's advanced control measures hit a bull's-eye, maintaining wall thickness tolerances far tighter than their competitors—at an amazing +/- .0001 in.! XP-Series rod bearings are narrowed on the crank cheek side with increased crush height for improved bearing-to-bore contact, heat transfer, and reduced spin potential in high-rpm applications.

4.65 out of 5 stars ( 68 )

$29.99

$265.99


$26.99

$239.39

On Sale

King HP-Series Main Bearings

King HP-Series main bearings are recommended for street and strip performance applications. They're designed for blown, turbocharged, NOS, and alcohol-fueled engines using aftermarket crankshafts. These main bearings have greater eccentricity for superior oiling at high rpm, and a chamfered surface for large radii crankshafts. HP-Series bearings also feature large, chamfered oil holes—and are available in 1/2 grooving for improved oiling to withstand high-rpm applications. Order the bearings designed for fitment with your specific engine.

4.44 out of 5 stars ( 48 )

$66.99

$172.99


$60.29

$155.69

On Sale

King HP-Series Rod Bearings

King HP-Series rod bearings were developed mainly for drag race applications needing a material harder than the Babbitt top layer. These applications demanded a structure that could withstand high loads for short durations and still offer higher embeddability and compatibility. In response, King developed the HP-Series, featuring the Alecular metal structure. The HP-Series is also suited for many performance applications with nodular cast iron crankshafts, such as street, strip, and some levels of Circle Track racing. Order the set recommended for your vehicle. HP-Series bearings are particularly suitable for the following cases: * When a tri-metal bearing's Babbitt overlay extrudes over the sides, migrates to one end, or is physically removed by the crankshaft * When the intermediate layer of a tri-metal bearing is exposed, damaging the crank journal and requiring expensive grinding or replacement * When contaminants enter the oil stream, scratching and damaging the crankshaft journals

4.67 out of 5 stars ( 36 )

$69.99

$136.99


$62.99

$123.29

On Sale

Summit Racing™ Extreme Duty Head Stud Kits

Summit Racing™ Extreme Duty cylinder head stud kits are engineered to withstand the stress and abuses that high-horsepower engines endure. These fastener kits come with all necessary studs, nuts, washers, lubricant, and instructions to ensure maximum performance and reliability. Order the hardware recommended for your year/make and engine application. Extreme Duty fasteners feature: * 190,000 psi tensile strength minimum * High-strength chromoly steel utilized for all products * Precision manufacturing processes ensure consistent product performance * All studs are twice straightened to guarantee straightness * Threads are rolled after heat treatment for high strength * Tensile and yield strength tested after thread rolling * Uniformly applied black oxide surface finish * Anti-rust oil coating to protect fasteners from corrosion

2.5 out of 5 stars ( 2 )

$399.99

$499.99


$349.99

$449.99

On Sale

King SI-Series Rod Bearings

King SI-Series rod bearings are recommended for OE applications. They're designed for aftermarket gasoline or diesel engine rebuilding and performance engines with OE crankshafts. These direct replacements have an improved finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. King SI-Series rod bearings also feature improved oil clearance to reduce wear and increase engine life—which, in turn, lessens operating noise, vibration, and excess oil flow. Hundreds of sets are available; order the bearings recommended for your vehicle.

4.57 out of 5 stars ( 92 )

$8.99

$105.99


$8.09

$95.39

On Sale

Summit Racing™ Pro Hemi Non-MDS Camshafts

Summit Racing™ Pro Hemi Non-MDS swap camshafts are made from high-quality bearing steel cores. They are precision ground and finished on modern CNC grinders to provide you with a premium replacement cam. Choose the model that fits your engine and make sure to use with Non-MDS lifters.

5.0 out of 5 stars ( 1 )

$349.99


$299.99

On Sale

King CP-Series Rod Bearings

King CP-Series rod bearings are premium OEM replacement bearings designed from copper-lead on steel with a .001 in. copper-lead tin over-plate. These quality OEM rod bearings are temperature-resistant with a high-load capacity to provide dependable engine performance. From quick repairs to full engine rebuilds, you can count on King Engine Bearings.

5.0 out of 5 stars ( 3 )

$21.99

$177.99


$19.79

$160.19

On Sale

King SI-Series Main Bearings

King SI-Series main bearings are recommended for OE applications. These replacement bearings are designed for aftermarket gasoline or diesel engine rebuilding—and performance engines with factory crankshafts. The bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. King SI-Series main bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow. Order the bearing set designed for fitment on your make and model.

4.16 out of 5 stars ( 80 )

$14.99

$156.99


$13.49

$141.29

On Sale

Holley Retrofit Engine Oil Pans for GM LS Engines

Holley retrofit engine oil pans for GM LS engines are designed to install an LS engine in a variety of GM muscle car and truck chassis. They provide OEM fitment, OEM oil filter mounting, OEM oil cooler port provision, OEM engine NVH suppression, OEM flange gasket and sealing, proper structural rigidity, and OEM bellhousing attachments. The oil pans are manufactured from traditional high-quality cast aluminum and include a sump baffle, oil pump pickup tube, sump plug, oil filter stud, and oil passage cover.

4.64 out of 5 stars ( 246 )

$470.95


$306.95

On Sale

King SV-Series Rod Bearings

King SV-Series rod bearings provide movement with minimal power loss. Connecting rod bearings provide rotating motion of the crank pin within the connecting rod, which transmits cycling loads applied to the piston, and King SV-Series will provide this function well to handle your extreme load engines. These King SV-Series connecting rod bearings are copper-based and lead-free, offering great wear resistance, as well as load capacity.

5.0 out of 5 stars ( 3 )

$23.99

$259.99


$21.59

$233.99

On Sale

King SM-Series Rod Bearings

For high load applications, King SM-Series rod bearings contain the strongest aluminum-based material offered by King. The alloy is strengthened by the addition of manganese and chromium. King SM-Series connecting rod bearings feature a traditional steel-backing, plus an aluminum bonding layer and the aluminum bearing alloy. These replacement sets are available for a variety of vehicle applications.

5.0 out of 5 stars ( 1 )

$21.99

$140.99


$19.79

$126.89

On Sale

King SX-Series Main Bearings

King offers SX-Series main engine bearings for a variety of vehicles, including Jeep and RAM. The direct replacements are machined from tri-metal material and are sold in sets. Order the bearings recommended for your application.

1.0 out of 5 stars ( 1 )

$147.99


$133.19

On Sale

Holley LS Engine Accessory Drive Kits

Holley LS engine accessory drive kits offer simple, clean, cost-effective solutions when swapping a GM LS engine into a muscle car, truck, hot rod, or any other vehicle. These bracket kits deliver a factory-style appearance, correct belt alignment, and factory stability. They fit virtually all common LS engines, regardless of water pump and harmonic balancer offsets—reducing cost and complexity. Holley LS engine accessory drive kits position the A/C compressor high above the crossmember, but below the hood line, for an easy installation. The brackets are manufactured from diecast aluminum with a natural, polished, or black finish. (An application-specific installation kit is required, but sold separately.)

4.33 out of 5 stars ( 52 )

$159.95

$603.95


$87.95

$332.95

On Sale

Mr. Gasket Harmonic Balancer Bolt Kits

These bolts are made of a Grade 8 alloy and are heat-treated for extra strength. They feature a high hex head to prevent socket slippage and an extra-thick washer to allow for a more accurate, uniform torque.

4.71 out of 5 stars ( 7 )

$15.07

$31.48


$9.80

$20.46

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