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Looking for big LS engine power at an affordable price? Summit Racing™ remanufactured 5.3L LS long block crate engines are rated at 450 HP and 420 lbs.-ft. torque! This engine will give you the performance and drivability you have been searching for at a price you can afford. It can be a performance upgrade for 99-07 Chevy trucks, or an engine swap into your project vehicle. You will save time and money by leaving the machine-work and assembly to us. Just bolt on your accessories and drop it in. These engines are machined and assembled for us by the guys at ATK, and backed with a 2-year unlimited mile warranty for peace of mind. Technical specifications: * Horsepower: 450+ * Torque: 420+ * Block: Seasoned OE LM7/5.3L iron * Bore/stroke: 3.800-3.820 in. x 3.622 in. * Year range: 1999-2007 * Displacement: 323 C.I.D. * Crankshaft: OEM GM 3.622 in. stroke internally balanced 24-tooth reluctor wheel * Connecting Rods: OE GM forged powder metal 6.093 in. * Pistons: Hypereutectic flat top * Piston rings: Moly * Compression ratio: 10:1 compression * Camshaft: Summit Racing Pro LS Roller * Camshaft specifications: Lift- 550/550, Duration @.050- 222/232 * Camshaft bearings: Installed and clocked to OEM position * Cylinder heads: #799 or #243 OE aluminum 64cc 2.00 in./1.55 in. valves * Freeze plugs: Brass installed and sealed * Rocker arms: OE powdered metal 1.7 ratio * Oil Galley plugs: Installed and sealed
( 39 )
$3,849.99
Looking for more power for your ride? Want to drop your quarter mile times substantially? Does OEM reliability and parts interchangeability interest you? Well my friend, you've come to the right place. Why bother rebuilding your existing engine with old, used, and worn-out parts when you can step up to brand-new with these affordable crate engines from Chevrolet Performance. You read it right, these engines feature all-new components built and manufactured by the pros at GM.
( 2 )
$7,285.07
ATK High Performance Chevy LQ4 6.0L 460 hp long block crate engines lay down impressive power that can be run with factory fuel injection or retrofitted with a carburetor. They're 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's ready for your choice of components to make it your own. ATK Chevy LQ4 6.0L 460 hp long block crate engines include: * 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 * Aluminum cylinder heads * Hydraulic roller camshaft * Timing chain and gear set * 1.7:1 ratio rocker arms * 24-tooth reluctor
( 10 )
$5,049.99
BluePrint Engines provides a Dyno Promise with results and bragging rights. They make sure they hit their target horsepower and proper torque with every crate engine, utilizing an advanced computerized balancer to get rotating assemblies within 2 grams, ensuring silky smooth power over the entire rpm range. According to BluePrint, that's precisely why their engines sound and run better than the competitors. Accompanying your BluePrint Engines Pro Series Chevy LS 376 c.i.d. 530 hp EFI base dressed long block crate engine will be a comprehensive, dyno-generated printout showing its critical specs. No more guessing what the real-world peak horsepower and torque ratings are. Any doubters in the crowd? Simply flash them your dyno results! These long block engines are available with or without complete engine controller with ECU, harness, throttle pedal, and sensors. Select the one you want. BluePrint Engines Pro Series Chevy LS EFI base dressed engine: * Horsepower and torque: 530hp/495 lb.-ft. * Compression ratio: 10.7:1 * BluePrint Engines LS3 aluminum cylinder heads -- 69cc chamber -- 2.165 in. intake/1.590 in. exhaust valves -- 259cc intake/102cc exhaust runners * Hydraulic roller camshaft: -- .612 intake/.585 exhaust lift -- 225 intake/238 exhaust duration at .050 in. -- 113-degree lobe separation angle -- 3-bolt cam * Nodular iron crankshaft -- 3.622 in. stroke -- 6.125 in. connecting rods with 150,000 psi bolts * Hypereutectic pistons * BluePrint Engines high-strength cast iron 6.2L block -- Increased deck thickness and strength webbing -- Extended cylinder skirt -- Priority main oiling -- 4.0662 in. bore -- 6-bolt main -- 1-piece rear main seal -- Improved water jacket design -- Utilizes OEM LS3 front and rear covers * LS swap oil pan * Harmonic balancer * DBW throttle body * Available with a GM plastic or fabricated intake manifold * Fuel injectors and rail * Coil packs * Spark plugs and wires * Water pump
( 1 )
$9,849.00
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$13,749.00
BluePrint Engines provides a Dyno Promise with results and bragging rights. They make sure they hit their target horsepower and proper torque with every crate engine, utilizing an advanced computerized balancer to get rotating assemblies within 2 grams, ensuring silky smooth power over the entire rpm range. According to BluePrint, that's precisely why their engines sound and run better than the competitors. Accompanying your BluePrint Engines Pro Series Chevy LS 376 c.i.d. 530 hp long block crate engine will be a comprehensive, dyno-generated printout showing its critical specs. No more guessing what the real-world peak horsepower and torque ratings are. Any doubters in the crowd? Simply flash them your dyno results! BluePrint Engines Pro Series Chevy LS 376 c.i.d. crate engine: * Horsepower and torque: 530hp/495 lb.-ft. * Compression ratio: 10.7:1 * BluePrint Engines LS3 aluminum cylinder heads -- 69cc chamber -- 2.165 in. intake/1.590 in. exhaust valves -- 259cc intake/102cc exhaust runners * Hydraulic roller camshaft: -- .612 intake/.585 exhaust lift -- 225 intake/238 exhaust duration at .050 in. -- 113-degree lobe separation angle -- 3-bolt cam * Nodular iron crankshaft -- 3.622 in. stroke -- Forged 6.125 in. rods * Hypereutectic pistons * BluePrint Engines high-strength cast iron 6.2L block -- Increased deck thickness and strength webbing -- Extended cylinder skirt -- Priority main oiling -- 4.0662 in. bore -- 6-bolt main -- 1-piece rear main seal -- Improved water jacket design -- Utilizes OEM LS3 front and rear covers * LS valve cover * LS swap oil pan * Harmonic balancer Note: Controlled by customer provided ECU.
Not Yet Reviewed
$7,999.00
BluePrint Engines is your premium choice in aftermarket, high-performance, drop-in LS crate engines, and their Pro Series is for those wanting maximum horsepower and durability. BluePrint Engines Pro Series Chevy LS 427 c.i.d. 625 hp EFI fully dressed long block crate engines offer any custom builder, hot rodder, or kit car builder an engine that has been fully Dyno tested, passed vigorous inspections, and is ready to power up your project. Blueprint's Pro Series 427 stroker GM LS3-style fuel injected engines are dressed with aluminum heads, forged pistons, forged crankshaft, a hydraulic roller cam, and a complete front accessory drive system with a polished or black finish. Additional features: * 6-bolt main block * Forged connecting rods * Cylinder head specs: -- 72cc chamber -- 2.165 in. intake/1.600 in. exhaust valves -- 259cc intake/102cc exhaust runners * Camshaft specs: -- .624 intake/.624 exhaust -- 239 intake/255 exhaust duration -- at .050—114-degree lobe separation * ECM supplied with calibration * 87mm LT5 DBW throttle body * Installed accessory drive with A/C, P/S, alternator, belts, and pulleys * LS3 intake manifold * 42# injectors and return-less fuel rail * Harmonic balancer * Valve covers, retro-fit oil pan, and timing cover * Coil packs * All sensors required for engine to run * Spark plug wires and wiring harness * Gas pedal * Dyno test results shipped with engine
Not Yet Reviewed
$17,949.00
You're track-ready with extreme performance GM LSX376 crate engines. At home on the street and on the strip, these value-driven Chevrolet Performance crate engines offer lower-compression forged aluminum pistons, a tough bottom end, and high-flow heads. LSX376 engines make a perfect foundation for supercharging, turbocharging, and nitrous--all you need to do is supply the boost! Does your muscle deserve the LSX touch? Yes! Get the strength and power to build a winner with these features: * Race-bred LSX Bowtie block * High-flow LS3 cylinder heads * Blower-friendly 9.0:1 forged pistons * 14 in. automatic transmission flexplate * Unique LSX376 valve covers
Not Yet Reviewed
$13,491.18
BluePrint Engines Pro Series Chevy LS 427 c.i.d. EFI retrofit dressed long block crate engines put down a whopping 625 hp and 565 lbs.-ft. of torque! They feature a 30-month/50,000-mile warranty and are the perfect choice for drivable and reliable high-end performance. Additionally, These assemblies are manufactured under strict tolerances and provide outstanding, consistent results. BluePrint Pro Series long block crate engines are also dyno-tested and include the dyno sheets. Features include: * New GM LS engine block * 4340 forged 4.125 in. stroke crankshaft * 4340 forged 6.125 in. long connecting rods * Forged pistons * 11.0:1 compression * Hydraulic roller camshaft, .624 in. lift intake, .624 in. lift exhaust, 239/255 intake/exhaust duration @ 0.050 in. lift with 114 degree lobe separation * Aluminum GM LS cylinder heads * Premium single true roller timing set * GM LS intake manifold, fuel injectors, fuel rails, drive by wire throttle body, and matching throttle pedal * GM factory roller rockers with upgraded full roller trunion * Ignition coil packs * Spark plug wires * Spark plugs * Harmonic balancer * ECM with custom tune installed
( 1 )
$16,049.00
BluePrint Engines Chevy LS 376 c.i.d. 530 hp EFI Retrofit dressed long blocks are for those wanting maximum horsepower and durability. Every BluePrint engine is dyno-tested for proven results and is backed by their exclusive 30-month/50,000-mile warranty. Specs and components for the Chevy LS 376 crate engines include: * New GM 6.2L block * Nodular iron rotating assembly * Forged connecting rods * Hypereutectic pistons * Aluminum cylinder heads -- 68cc chamber -- 2.165 in. intake/1.600 in. exhaust valves * Roller camshaft -- .612 intake/.585 exhaust lift -- 225 intake/238 exhaust duration at .050 -- 113 degree lobe separation * Compression ratio 10.7:1 * LS3 intake manifold * Fuel injection included * Coil packs * Oil pan * Valve covers * Timing cover * Water pump * Harmonic balancer * Spark plugs and wires
( 6 )
$11,149.00
BluePrint Engines provides a Dyno Promise with results and bragging rights. They make sure they hit their target horsepower and proper torque with every crate engine, utilizing an advanced computerized balancer to get rotating assemblies within 2 grams, ensuring silky smooth power over the entire rpm range. According to BluePrint, that's precisely why their engines sound and run better than the competitors. Accompanying your BluePrint Engines Pro Series Chevy LS 427 c.i.d. 605 hp EFI base dressed long block crate engine will be a comprehensive, dyno-generated printout showing its critical specs. No more guessing what the real-world peak horsepower and torque ratings are. Any doubters in the crowd? Simply flash them your dyno results! These long block engines are available with or without LS engine controller package with wiring harness and gas pedal. Select the one you want. BluePrint Engines Pro Series Chevy LS EFI base dressed engine: * Horsepower and torque: 605 hp/565 lb.-ft. * Compression ratio: 11:1 * BluePrint Engines LS3 aluminum cylinder heads -- 69cc chamber -- 2.165 in. intake/1.590 in. exhaust valves -- 259cc intake/102cc exhaust runners * Hydraulic roller camshaft: -- .624 intake/.624 exhaust lift -- 239 intake/255 exhaust duration at .050 in. -- 114-degree lobe separation angle -- 3-bolt cam * Forged steel crankshaft -- 4.125 in. stroke -- 6.125 in. connecting rods * Forged pistons * BluePrint Engines high-strength cast iron 6.2L block -- Increased deck thickness and strength webbing -- Extended cylinder skirt -- Priority main oiling -- 4.0685 in. bore -- 6-bolt main -- 1-piece rear main seal -- Improved water jacket design -- Utilizes OEM LS3 front and rear covers * LS swap oil pan * Harmonic balancer * DBW throttle body * Available with a GM plastic or fabricated intake manifold * #42 fuel injectors and returnless fuel rail * Coil packs * Spark plugs and wires * Valve covers * Timing cover
Not Yet Reviewed
$12,849.00
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$16,049.00
On Sale
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.
( 69 )
$2,941.99
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$3,740.99
$2,741.99
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$3,540.99
On Sale
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
( 15 )
$4,189.99
$3,989.99
BluePrint Engines Pro Series Chevy LS 376 c.i.d. 495 hp EFI truck long block crate engines are fully Dyno tested, passed vigorous inspections, and are prepared for those wanting maximum horsepower and durability. Features, specs, and contents: * 495 hp, 490 ft.-lb., compression ratio 10.7:1 * Cast Iron block with 6-bolt main * Nodular iron crankshaft * Connecting rods with 150,000 psi bolts * Hypereutectic pistons * Internal balanced rotating assembly * BluePrint aluminum cylinder heads --72cc chamber --2.165 in. intake/1.60 in. exhaust valves --259cc intake/102cc exhaust runners * Hydraulic roller cam --.553 intake/.553 exhaust lift --218 intake/224 exhaust duration @ .050 --113 degree lobe separation * Truck intake manifold * Fuel injectors and rail * Truck water pump * Truck harmonic balancer * GM muscle car swap oil pan (Customer may have to reuse existing pan and pickup) * Coil packs * Spark plugs and wires
Not Yet Reviewed
$10,949.00
ATK Marine Engines offers premium-quality rebuilt long block engines specifically for boating applications. These engines are designed to deliver maximum performance and long-term durability for your boat. Order the model recommended for your marine application. ATK Marine rebuilt engines include: * Special marine pistons and rings * Special marine camshaft * Marine gaskets * New intake and exhaust valves * New main, rod, and cam bearings * New valve lifters, rocker nuts, and swivels * Heavy-duty double roller timing chains * Cam sprocket * Crank gear * Freeze plugs
( 45 )
$5,542.99
ATK specializes in muscle. With the highest quality internal parts and dyno-proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty. This ATK High Performance GM LQ4 6.0L 535 hp base long block crate engine is fitted with LS3 heads. Engine specifications: * Horsepower: 535 * Torque: 485 * Block: OE LQ4/LQ9 6.0L iron * Bore/stroke: up to 4.030 in. x 3.622 in. * Displacement (cu.in): up to 371c.i.d. * Crankshaft: OE GM 24 tooth reluctor wheel * Rods: OE powder metal * Pistons: Hypereutectic 10.1 compression * Rings: Moly * Camshaft: Hydraulic roller * Cam specs: Custom performance grind * Timing chain: OE single roller * Cylinder heads: -- ATK LS3 rectangular port aluminum -- 69cc/255cc -- 2.160 in. intake/1.600 in. exhaust * Rocker arms: OE 1.7 ratio with trunnion upgrade * Oil pump: Melling M295
Not Yet Reviewed
$5,199.99
BluePrint Pro Series Chevy LS 376 c.i.d. EFI supercharged deluxe long block crate engines deliver 700 hp and 640 lbs.-ft. of torque. They include LS3 aluminum cylinder heads, forged pistons, hydraulic roller camshaft, nodular iron crankshaft, a Holley Terminator X Max Gen IV complete ECU and harness for engine management, a polished or black finish accessory drive system, and more. Additional features and specs: -- Block: * BluePrint Engines high-strength cast iron 6.2L block * Increased deck thickness and strength webbing * Extended cylinder skirt * Priority main oiling * 4.070 in. bore * 6-bolt main * One-piece rear main seal * Improved water jacket design * Compression ratio: 9.5:1 -- Rotating Assembly: * Forged crankshaft * 3.622 in. stroke * 6.125 in. connecting rods with 150,000 psi bolts * Forged pistons * Internally balanced front and rear -- Cylinder heads: * BluePrint aluminum cylinder heads * 70cc chamber * 2.165 in. intake / 1.600 in. exhaust valves * 259cc Intake / 102cc exhaust runners -- Cam specs: * Cam type: Hydraulic Roller Cam * .612 intake / .585 exhaust lift * 225 intake / 238 exhaust duration * @.050-113 degree lobe separation -- Also includes: * Holley Terminator X Max - Gen IV complete ECU/Harness EFI system * Coil packs * Valve covers * Oil pan * All sensors required for engine to run * Drive-by-wire throttle body * Throttle pedal * Timing cover * Spark plugs and wires * Harmonic balancer * Front accessory drive with power steering pump, water pump, alternator, and air compressor -- Notes: * Not for use in pollution-controlled vehicles. * BluePrint Engines recommends air intake kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the above ECU / tuning.
Not Yet Reviewed
$22,499.00
BluePrint Engines Chevy LS 376 c.i.d. 549 hp EFI LS3-style long blocks are for those wanting maximum horsepower and durability. Every BluePrint engine is dyno-tested for proven results and backed by their exclusive 30-month/50,000-mile warranty. Specs and components for the Chevy LS 376 crate engines include: * New GM 6.2L block * Nodular iron rotating assembly * Forged connecting rods * Hypereutectic pistons * Aluminum cylinder heads -- 72cc chamber -- 2.165 in. intake/1.600 in. exhaust valves * Roller camshaft -- .612 intake/.585 exhaust lift -- 225 intake/238 exhaust duration at .050 -- 113 degree lobe separation * Compression ratio 10.7:1 * LS3 intake manifold * Fuel injection included * 87mm DLT4 BW throttle body * Coil packs * Oil pan * Valve covers * Timing cover * Water pump * Harmonic balancer * Spark plugs and wires
Not Yet Reviewed
$12,449.00
Swap out your powerplant with one of these BluePrint Engines Pro Series Chevy LS 427 c.i.d. EFI drop-in base long block crate engines. They put down an impressive 625 hp and 565 lbs.-ft. of torque! Featuring a 30-month/50,000-mile warranty, they're the perfect choice for drivable and reliable high-end performance. Additionally, BluePrint Pro Series Chevy 427 c.i.d. dressed long block crate engine assemblies are manufactured under strict tolerances and provide outstanding, consistent results. They include a 58X Gen IV reluctor wheel and sensors. Long block crate engine features include: * New GM LS engine block * 4340 forged 4.125 in. stroke crankshaft * 4340 forged 6.125 in. long connecting rods * Forged pistons * 11.0:1 compression * Hydraulic roller camshaft, .624 in. lift intake, .624 in. lift exhaust, 239 intake/255 exhaust duration @ .050 in. lift, with 114 degree lobe separation * Aluminum GM LS cylinder heads * Single roller timing chain * GM LS intake manifold * Full roller rocker arms * ECM Controlled (not included - customer must reprogram)
Not Yet Reviewed
$12,949.00
BluePrint Engines Pro Series Chevy LS 427 c.i.d. carbureted retrofit dressed long block crate engines put down a whopping 625 hp and 550 lbs.-ft. of torque! They feature a 30-month/50,000-mile warranty and are the perfect choice for drivable and reliable high-end performance. Additionally, these engines are manufactured under strict tolerances and provide outstanding, consistent results. All of the rotating assemblies are balanced to within 2 grams on a computerized balancer. BluePrint Pro Series long block crate engines are also dyno-tested and include the dyno sheets. Long block crate engine features include: * New GM LS engine block * 4340 forged 4.125 in. stroke crankshaft * 4340 forged 6.125 in. long connecting rods * Forged pistons * 11.0:1 compression * Hydraulic roller camshaft, .624 in. lift intake, .624 in. lift exhaust, 239/255 intake/exhaust duration at .050 in. lift with 114 degree lobe separation * Aluminum GM LS cylinder heads * Single roller timing chain * Aluminum single plane intake manifold * Full roller rocker arms * Carburetor * Ignition coil packs * Spark plug wires * Spark plugs * Harmonic balancer
( 2 )
$14,049.00
Whether you're looking to build a reliable engine for towing and hauling or want the foundation for a high-performance build, the Chevrolet Performance 6.0L 366 C.I.D. L76 Remanufactured Crate Engines are a great starting point and at a more affordable cost. These crate engines boast a number of features and benefits. Each engine is tested to meet or exceed GM's original equipment specifications. Additionally, every component is inspected and replaced if necessary. As a result, these remanufactured crate engines provide excellent value and dependability. Specific information (instructions): The replacement crate engines are built with two different designed oil pans. Differences are the first design oil pan has threaded hole for oil level sensor; the second design oil pan is without hole for the oil level sensor. Transfer oil pan from original engine or procure new, if required. For C/K Trucks, G-van applications, the oil pan on the replacement engine has been upgraded with a new oil deflector (shield) installed over a new oil pressure relief valve. If transferring the original oil pan to the replacement engine transfer these new components to that oil pan. --Transfer crankshaft balancer, crankshaft sensor, camshaft sensor, sensor wiring harness and bracket from original engine or procure new. --Install new crankshaft balancer bolt that is included with engine assembly. --Refer to instruction sheet for general/detailed information and instructions on components that are required to be transferred from the original engine assembly or procured new. --Transfer crankshaft balancer, crankshaft sensor, camshaft sensor, sensor wiring harness and bracket from original engine or procure new. --Install new crankshaft balancer bolt that is included with engine assembly. The replacement engine is built with a first or second design oil pan. The first design pan has a threaded hole for applications equipped with an oil level sensor. The second design oil pan is for applications that do not use an oil level sensor; no threaded hole. Transfer oil pan from original engine or procure new, if required. The replacement engine is built with first or second design valve rocker arm covers. The first design valve covers do not use quick connect PCV tubes. The second design valve covers use quick connect PCV tubes. Transfer valve covers from original engine or procure new, if required. The replacement engine may use rivet-type plugs in place of the coolant air bleed covers located at the top rear of each cylinder head. In applications that contain the rivet-type plug, it is not necessary to install the coolant bleed covers. For LS4 Applications, transfer the A/T flywheel/flexplate locator that is pressed into the rear hub of the crankshaft from the original engine or procure new. For C/K Trucks, G-van applications, the oil pan on the replacement engine has been upgraded with a new oil deflector (shield) installed over a new oil pressure relief valve. If transferring the original oil pan to the replacement engine transfer these new components to that oil pan. For 2007 Cadillac Escalade and GMC Yukon Denali applications w/6.2L L92: Engines prior to April 2006 were built with AFM (Active Fuel Management) hardware components, but the AFM system is not enabled on the 2007 L92 engine. The replacement engine does not contain the AFM hardware; it includes a valley cover that is used in place of the VLOM (valve lifter oil manifold). Do not transfer AFM hardware to replacement engine. When performing an engine replacement on a L92 engine that was originally equipped with AFM hardware, the VLOM electrical connector must be removed from the wiring harness. Included Engine Content: * Engine Block * Pistons * Crankshaft * Connecting Rods * Cylinder Head * Camshaft * Front Cover * Housing, Cr/Shf Rear Oil Seal * Valve Cover/Cam Cover * Valve lifter Oil Manifold (VLOM) * Oil Pan
Not Yet Reviewed
$7,373.99
ATK specializes in muscle. With the highest quality internal parts and dyno-proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty. This ATK High Performance GM LM7 5.3L 500 hp long block crate engine is fitted with AFR heads and FiTech EFI. Engine specifications: * Horsepower: 500 * Torque: 440 * Block: OE LM7/5.3L iron * Bore/stroke: up to 3.903 in. x 3.622 in. * Displacement (cu.in): up to 347c.i.d. * Crankshaft: OE GM 24 tooth reluctor wheel * Rods: OE powder metal * Pistons: Hypereutectic 10.1 compression * Rings: Moly * Camshaft: Hydraulic roller * Cam specs: Custom performance grind * Timing chain: OE single roller * Cylinder heads: -- AFR CNC ported aluminum -- 59cc/200cc -- 2.000 in. intake/1.570 in. exhaust * Rocker arms: OE 1.7 ratio * Oil pump: Melling M295 * EFI System: -- FiTech Ultra port injection LS1 750 hp with transmission control -- Wiring harness and ECM/TCM included * Fuel injectors: FiTech 55 lb. * Spark plugs: Autolite #104 * Spark plug wires: 8mm * Balancer: Stock internally balanced
Not Yet Reviewed
$8,899.99
ATK specializes in muscle. With the highest quality internal parts and dyno-proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty. This ATK High Performance GM LM7 5.3L 500 hp base long block crate engine is fitted with AFR heads. Engine specifications: * Horsepower: 500 * Torque: 440 * Block: OE LM7/5.3L iron * Bore/stroke: up to 3.903 in. x 3.622 in. * Displacement (cu.in): up to 347c.i.d. * Crankshaft: OE GM 24 tooth reluctor wheel * Rods: OE powder metal * Pistons: Hypereutectic 10.1 compression * Rings: Moly * Camshaft: Hydraulic roller * Cam specs: Custom performance grind * Timing chain: OE single roller * Cylinder heads: -- AFR CNC ported aluminum -- 59cc/200cc -- 2.000 in. intake/1.570 in. exhaust * Rocker arms: OE 1.7 ratio with trunnion upgrade * Oil pump: Melling M295
Not Yet Reviewed
$5,199.99
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