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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Melling AFM/MDS Delete Combo

Melling offers their engine cylinder deactivation kits for converting active fuel management engines to non-active fuel management versions. These AFM (active fuel management) or MDS (multi-displacement system) delete combos include a variety of components to help complete the changeover. Order the Melling AFM/MDS delete combo best suited for your application. Each kit includes: * MDS delete camshaft (1) * Non-MDS hydraulic roller lifters (16) * Lifter guides for Non-MDS engines (4) Application dependent components include: * AFM/MDS solenoid plugs (4) * Camshaft thrust plate (1) * Variable Valve Tming (VVT) oil control valve (1) Notes: * When installing a delete cam, the active fuel management lifters must be replaced using non-active fuel management lifters. * The valve lifter guides used in non-active fuel management engines differ from those used in active fuel management engines and must be replaced for this application. * The AFM/MDS solenoids must be replaced using non-MDS plugs. * The vehicle engine control module/powertrain control module must be reprogrammed to turn off the active fuel management system in the operating software. * Pushrod length must be checked during installation to verify the correct length.

4.5 out of 5 stars ( 6 )

$640.99

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$1,394.99

Summit Bucks

Chevrolet Performance L8P 6.6L 400 C.I.D Engine Assemblies

By combining the large-displacement and heavy-duty elements of the L8T 6.6L engine and a unique camshaft based off the Corvette Stingray's high-revving LT2 V-8, Chevrolet Performance engineers have created the all-new L8P 400 c.i.d. Performance crate engine. Rated at 523 hp and 543 lbs.-ft. of torque, it offers your project a unique and naturally aspirated combination of big-displacement torque and high-rpm horsepower. The L8T 6.6L foundation is the same high-strength, big-displacement engine found in the Silverado HD from 2020 to present day, featuring a forged steel crankshaft and high-strength components. Additional features such as oil-spray cooling for the pistons and a cast iron, long-skirt cylinder block with 6-bolt, cross-bolted main caps contribute to the engine's strength and durability. The new L8P builds on that with a unique, upgraded valvetrain featuring performance-oriented valves and springs, along with a unique camshaft that is based off the Corvette Stingray's LT2 engine. It has a non-active fuel management profile and more duration than the L8t's camshaft. It's the best of both engines: the largest displacement in the LT family and the power-building attributes of the Corvette camshaft. Put it to work in your project. Fast Facts: * Displacement: 400 cu. in. (6.6L) * Bore x Stroke: 4.06 in. x 3.86 in. * Crankshaft: Forged steel * Pistons: Hypereutectic aluminum * Compression ratio: 10.8:1 * Cylinder heads: Rectangular port D/I with 59.02cc chambers * Camshaft type: Billet steel hydraulic roller * Camshaft duration: 218 degree intake/231 degree exhaust at .050 in. * Fuel delivery: Direct injection with high-pressure pump * Horsepower: 523 at 5,800 rpm * Torque (lbs.-ft.): 543 at 4,800 rpm * Engine type: Gen V small block V-8 direct injection spark ignition * Block: Cast iron with 6-bolt no Dula main bearing caps * Connecting rods: Forged powder-metal * Valve lift (in.): 0.549 intake / 0.549 exhaust * Rocker arms: Investment cast roller trunnion * Rocker arm ratio: 1.8:1 * Intake manifold: Composite * Throttle body: 87mm diameter (single-bore) * Fuel delivery: High-pressure direct injection (2,175 psi / 150 bar) * Recommended fuel: Premium pump * Ignition system: Coil-on-plug * Maximum recommended RPM: 6,000 rpm * Reluctor wheel: 58X * Balanced: Internal * Note: Use with the new engine control kit, P/N 19435524, which includes a programmed controller, wire harness, pedal, oxygen sensors and mounts, MAD, fuel line pressure sensor and fuel pump power module. Flexplate P/N 12685003 must be purchased for these engines to be compatible with the 10-speed supermatic transmission. 10-speed supermatic transmission uses six bolts to attach the torque converter.

Not Yet Reviewed

$8,948.80

ATK High Performance Chevy LQ4 6.0L 505 HP Long Block Crate Engines

ATK High Performance Chevy LQ4 6.0L 505 hp long block crate engines are designed to be a performance upgrade for LS-based vehicles or perfect for a 2001-07 Chevy Truck LQ4 or LS swap in a hot rod. Expect big mid- to upper-end power, with a noticeable idle. (For optimal performance, you'll need headers, chassis dyno tune, and 36 lb. injectors. Engine specifications: * Horsepower: 505 * Torque: 480 * Block: OE LQ4/6.0L Iron * Bore/Stroke: Up to 4.040 in. x 3.622 in. * Displacement (cu.in.): Up to 371 * Crankshaft: OE GM 24-tooth reluctor wheel * Rods: OE powder metal or stock GM * Pistons: Hypereutectic 10:1 compression * Rings: Moly * Camshaft: Hydraulic roller * Cam specs: Custom performance grind * Timing chain: OE single roller * Cylinder heads: OE cathedral port aluminum 71cc/210cc 2.00/1.55 * Rocker arms: 1.7 ratio * Oil pump: Melling STD volume * Engine info: -- Oil: Conventional / Non-Synthetic 10W30 -- Oil Filter: Wix or K&N -- Timing: Set to factory specifications via PCM module -- Spark Plug Gap: .040 in. -- Firing Order: 18726543 -- Octane: 91+ -- Stall Converter: 1800+ -- Exhaust: 1 5/8 + Headers (Per application – Larger diameter will make more power) * NOTES: This engine replaces the 2001-07 Chevy 6.0L LQ4 engine. ECM MUST BE TUNED; not doing so can damage the engine. A PCV valve must be run. You must also run an air-oil separator system such as the Moroso 85487 to capture the excess crankcase vapors LS engines are known for. If you are not running a MAP sensor, the MAP timing option in the timing control box must be zeroed out all the way across. Failure to do so will allow the controller to add timing which can lead to detonation. You must also run some sort of a steam line kit that dumps to your water pump, radiator or radiator hose; ATK recommends a 4-corner setup like the Trick Flow TFS-306SB601. This allows air pockets/hot spots to escape the heads and can also be used to purge out trapped air when filling the radiator for the first time.

3.0 out of 5 stars ( 2 )

$5,198.99

S&S Cycle Milwaukee 8 Chain Drive Camshaft and Dynojet PV-3 Kits

S&S Cycle Milwaukee 8 chain drive camshaft and Dynojet PV-3 kits are the first of their kind, offering a 475 cam, tuner in chain drive, and true 100+ hp at the wheel in one package. The kits are designed to work specifically with S&S's Stealth air cleaner kits and Mk45 mufflers with a stock header or their Eldorado exhaust system. Features and benefits: * Bolt-in performance * No need for expensive dyno tuning * Display vehicle data channels in real-time * Weather-resistant for use in all conditions * High-contrast display, viewable in direct sunlight Please note: * PV-3 module is preloaded with calibrations developed by S&S. These calibrations are secure and do not allow for any modifications. * Calibrations do not work on any Harley-Davidson® Softail models. * Calibrations do not work on 2020+ Harley-Davidson® Touring Models.

Not Yet Reviewed

$628.95

Melling Stock Replacement Camshafts

Perfect for replacements or stock rebuilds, Melling stock replacement camshafts can restore your engine's true potential. They're available in a variety of styles, including hydraulic flat tappet, roller tappet, and roller follower; and mechanical flat tappet. Melling offers affordable, quality engine parts, including a full line of cams for cars, light trucks, and imports as far back as the mid-1950s. If you want quality that you can count on at a price that's hard to beat, order the Melling stock replacement camshaft designed for fitment on your vehicle.

4.36 out of 5 stars ( 22 )

$459.99

Mahle Original Oil Filters

Mahle Original oil filters reliably prevent contaminants from entering the lubrication system and maintain oil quality, as well as the performance and efficiency of your engine. They are available in several shapes and styles to meet all your needs. Order the filter designed for fitment on your vehicle.

5.0 out of 5 stars ( 8 )

$17.99

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