Crate Engines, Short Blocks, Engine & Transmission Combos

BluePrint Engines GM 383 C.I.D. 436 HP Dressed Stroker Long Block Crate Engines

Bolt some serious power into your ride with a BluePrint GM 383 c.i.d. 436 hp dressed Stroker long block crate engine. They're built from the ground up to provide a reliable 436 hp and 443 lbs.-ft. of torque to power your street rod, musclecar, or any other project that needs serious power. Each engine is hand-assembled and precision-balanced to ensure it will run smooth and strong for years to come. Three models are available; compare options and order the engine that best fits your needs. Product features and specifications: * 4-bolt main block * New cast crankshaft * Hypereutectic pistons * Chevy heavy beam rods with 150,000 psi bolts * Moly rings * Balanced rotating assembly * Melling high-volume oil pump * Hydraulic roller lifter camshaft * .544 intake / .555 exhaust * 230 intake / 236 exhaust duration at .050 * 110 degree lobe separation * Heavy-duty double roller timing set * Aluminum cylinder heads * Hardened retainers and springs * Swirl polished intake and exhaust valves * Hardened pushrods * Dual plane satin finish intake manifold * Carburetion * Distributor, plug wires and plugs * New valve covers * Dyno tested—and shipped with results

4.79 out of 5 stars ( 63 )

$7,299.00

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$8,399.00

BluePrint Engines GM 400 C.I.D. 500 HP Dressed Long Block Crate Engines

Dressed for high performance, BluePrint Engines GM 400 c.i.d. 500 hp long block crate engines are not your grandpa's 400! Built by skilled craftsmen, these blocks are assembled with ignition and carburetor, as well as valve covers, oil pan, and timing cover. The most complete crate engine available, they offer you fast, easy installation. And because they're dyno-tested, you can be sure all the components will work together perfectly! BluePrint's GM 400 c.i.d. 500 hp dressed engines feature: * Cast iron block with 4-bolt mains * Compression ratio: 10.3:1 * Forged crankshaft * 5.7 in. connecting rods * 150,000 psi rod bolts * Forged pistons * Hydraulic roller cam * BluePrint aluminum heads with 64cc chamber * Intake manifold dual plane, satin aluminum * Carburetor * Dyno test results shipped with engine * 30-month/50,000-mile warranty

4.25 out of 5 stars ( 12 )

$8,199.00

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$10,699.00

Summit Bucks

Chevrolet Performance LSX 454 Long Block Crate Engines

Chevrolet Performance LSX 454 long block crate engines are built with an all-forged, super-tough rotating assembly and feature a pair of new deep-breathing LSX 6-bolt cylinder heads. They also come dressed with great looking, all-new orange powdercoated valve covers with an engraved LSX 454 logo. With a carburetor and high-flow Chevrolet Performance intake manifold (sold separately), these engines are good for about 627 hp and 586 lbs.-ft. of torque. Due to the number of application variations, the LSX 454 crate engines do not include an oil pan, and the valve covers do not include provisions for mounting the ignition coil brackets. Other specifications include: * 4.185 in. bore * 4.125 in. stroke * Cast iron LSX Series block with cross-bolted 6-bolt main caps * Forged steel crankshaft * Forged steel connecting rods * Forged aluminum 11.0:1 compression pistons * Hydraulic roller camshaft * 0.635 in. lift intake/0.635 in. lift exhaust, 236 intake/246 exhaust duration at .050 in. lift * Aluminum LSX-LS7 cylinder heads with 70cc chambers * 1.8:1 aluminum roller rocker arms * 58-tooth reluctor wheel

4.0 out of 5 stars ( 1 )

$16,836.20

ATK High Performance GM 350 Vortec 350 HP Stage 2 Long Block Crate Engines

Give your car or truck a little more punch with one of these ATK High Performance GM 350 Vortec 350 hp Stage 2 long block crate engines. These engines are built from the ground up to replace your old, tired mill with a more modern, efficient engine. ATK hand-builds and balances each one these engines to ensure they are great-running, reliable engines that will get you back on the road. Engine specifications: * HP: 350 * TQ: 400 * Block: OE roller block 4-bolt main 1-pc seal 1996-2000 * Bore/Stroke: 4.040 in. x 3.480 in. * Displacement: 350CI * Crankshaft: OE reground external balance rear of crank/internal balance front of the crank * Rods: OE powder metal 5.7 in. * Pistons: Hypereutectic 9.5:1 compression * Rings: Moly * Camshaft: Hyd. Roller * Cam Specs: 220/224 @50 .495in/.502ex 110LSA * Timing Chain: Double roller * Cylinder Heads: Vortec cast iron 67cc 1.94/1.50 *Rocker Arms: Stamped steel 1.5 ratio * Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some Corvettes and 62-67 Chevy II's) * Oil Pump: Melling STD volume * Balancer: Internally balanced – PowerBond #PB1046-N * Flexplate: Externally balanced – Pioneer #FRA-159 * Intake Manifold: ATK HP dual plane * Distributor: HEI (Iron Gear) * Water Pump: OE long pump Recommended components: * Carburetor: Quick Fuel 680CFM vacuum secondary's electric choke #HR-680 * Fuel Pump: Holley mechanical 110GPH #12-327-11 * Spark Plugs: Autolite #605 * Spark Plug Wires: 8mm Engine Info: * Oil: Conventional/Non-Synthetic 10W30 * Oil Filter: Wix or K&N * Timing: 34-36 Degrees * Spark Plug Gap: .035 in. * Firing Order: 18436572 * Octane: 91+ * Stall Converter: Stock * Exhaust: 1 5/8 Headers

4.0 out of 5 stars ( 9 )

$3,688.99

Summit Bucks

Chevrolet Performance Crate Engines

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.

2.33 out of 5 stars ( 3 )

$7,412.92

ATK High Performance GM 350 Vortec 315 HP Stage 1 Long Block Crate Engines

Give your truck a little more punch with one of these ATK High Performance GM 350 Vortec 315 hp Stage 1 long block crate engines. These engines are built from the ground up to replace your old, tired mill with a more modern, efficient engine. ATK hand-builds and balances each one these engines to ensure that they are great-running, reliable engines that will get you back on the road. Engines include: * Handpicked, remanufactured blocks * Cast iron Vortec cylinder heads * OE crankshaft and connecting rods * Hypereutectic pistons * Hydraulic roller camshaft * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube

3.78 out of 5 stars ( 9 )

$2,988.99

ATK High Performance GM 350 330 HP Stage 1 Long Block Crate Engines

Give your ride new life with ATK High Performance GM 350 330 hp/380 lbs.-ft. Stage 1 long block crate engines. These engines are based on the tried-and-true small block Chevy and are built to perform right out of the box. ATK hand-assembles and balances each engine using top-quality parts to help them produce awesome power. Whether you are replacing an older, worn down engine or just looking for a little more performance, ATK has you covered. Stage 1 long block crate engines include: * Handpicked, remanufactured blocks * ATK cast iron cylinder heads * 76cc chambers * 165cc intake runners * 1.94 in./1.5 in. valves * Stamped steel 1.5 ratio rocker arms * OE crankshaft * OE 5.7 in. powder metal connecting rods * Hypereutectic flat-top pistons * Moly rings * Hydraulic flat tappet camshaft * 465 int./.488 exh. cam lift * 224 int./234 exh. cam duration at 0.50 * 9.1:1 compression * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube

3.69 out of 5 stars ( 16 )

$3,099.99

BluePrint Engines GM 383 C.I.D. 436 HP Fully Dressed Stroker Long Block Crate Engines

Bolt some serious power into your ride with these BluePrint Engines GM 383 c.i.d. 436 hp dressed stroker long block crate engines. These engines are built from the ground up to provide a reliable 436 hp and 443 lbs.-ft. of torque to power your street rod, muscle car or any other project that needs serious power. Each engine is hand-assembled, and precision balanced to ensure it will run smooth and strong for years to come. BluePrint GM 383 c.i.d. 436 hp dressed stroker crate engines include: * 4-bolt main block * New cast crankshaft * Hypereutectic pistons * Chevy heavy beam rods with 150,000 psi bolts * Moly rings * Balanced rotating assembly * Melling high-volume oil pump * Hydraulic Roller lifter camshaft * Heavy-duty double roller timing set * Aluminum cylinder heads * Hardened retainers and springs * Swirl polished intake and exhaust valves * Hardened pushrods * Dual plane satin finish intake manifold * Carburetion * Distributor, plug wires and plugs * Water pump * New valve covers * Brass freeze plugs * Front accessory drive with water pump, A/C compressor, alternator, and power steering pump * Dyno tested—and shipped with results

1.0 out of 5 stars ( 1 )

$8,299.00

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$10,299.00

ATK High Performance GM 350 330 HP Stage 3 Long Block Crate Engines

Give new life to your ride with ATK High Performance GM 350 330 hp/380 lbs.-ft. Stage 3 long block crate engines. They are based on the tried-and-true small block Chevy and are built to perform right out of the box. ATK hand-assembles and balances each engine using top-quality parts to help them produce awesome power. Whether you are replacing an older, tired engine or just looking for a little more performance, ATK has you covered. Stage 3 long block crate engines include: * Handpicked, OE remanufactured blocks * ATK cast iron cylinder heads * 76cc combustion chambers * 165cc intake runners * 1.94 in./1.5 in. valves * ATK dual plane Intake manifold * OE crankshaft * OE 5.7 in. powder metal connecting rods * Hypereutectic flat-top pistons * Hydraulic flat tappet camshaft * .465 int./.488 exh. cam lift * 224 int./234 exh. cam duration at 0.50 * 9.1:1 compression * Distributor, spark plugs, and plug wires * Valve covers * Timing cover and double roller timing set * Oil pan, pump, and pickup tube * OE style long water pump * Balancer and 168 tooth flexplate

3.63 out of 5 stars ( 8 )

$4,754.99

Summit Racing™ All New 300 HP Small Block Chevy 350 Crate Engines

These Summit Racing™ 350 small block Chevys are 100% new, including their blocks! No remanufactured parts are used to build these engines. They are built with new Vortec head castings that are not prone to cracking like the factory ones, and produce a reliable 300+ horsepower/375+ lbs.-ft. torque, providing a mild muscle car tone. These engines are assembled for us by the guys at ATK, and backed with their 2-year unlimited mile warranty for peace of mind.

Not Yet Reviewed

$4,499.99

ATK High Performance GM 350 Vortec 350 HP Stage 1 Long Block Crate Engines

Give your car or truck a little more punch with ATK High Performance GM 350 Vortec 350 hp Stage 1 long block crate engines. These engines are built from the ground up to replace your old, tired mill with a more modern, efficient engine. ATK hand-builds and balances each one these engines to ensure that they are great-running, reliable engines that will get you back on the road. ATK GM 350 Vortec 350 hp Stage 1 long block crate engines include: * Handpicked, remanufactured blocks * Cast iron Vortec cylinder heads * OE crankshaft and connecting rods * Hypereutectic pistons * Hydraulic roller camshaft * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube

5.0 out of 5 stars ( 7 )

$3,334.99

ATK High Performance Chrysler 408 A Stroker Short Blocks

Start your build with a rock-solid bottom-end with these ATK High Performance Chrysler 408 A Stroker short blocks. These short blocks are built using high-quality components that are all hand-fit and balanced to create a reliable bottom-end that's ready to get your musclecar or truck moving. Just top the engine off with your own parts to build a custom engine that is designed to meet your goals. These ATK High Performance Chrysler 408 A Stroker short blocks include the following: * Handpicked and seasoned OE Magnum 1993-2001 blocks * Aligned and hone main bores * Nodular iron internally balanced crankshaft * 4.00 in. stroke * 4340 forged I beam connecting rods with ARP 8740 bolts * Hypereutectic pistons with 23.5cc dish * Plasma-moly rings * Approximate Compression Ratios: 62cc = 9.7:1 / 68cc = 9.2:1 / 72cc = 8.9:1

4.75 out of 5 stars ( 4 )

$2,998.99

BluePrint Engines Ford 347 C.I.D. 415 HP Base Stroker Long Block Crate Engines

Satisfy your craving for horsepower with BluePrint 347 c.i.d. 415 hp base stroker long block crate engines. They are meticulously-built Blue Oval engines from a solid, reputable company that does the job right and stands behind their work. BluePrint custom-built crate and stroker performance engines are always balanced and dyno-tested to add a lot of muscle to your fun! Plus, they're shipped with the dyno results so you can see the BluePrint difference! So, where will you get your horsepower from? Block: * Square and parallel decked * Align-honed main bearing bore * Cylinders honed on computer-controlled machine to within .0002 in. straightness and roundness * Cylinders are sonic tested for thickness Rotating assembly: * New cast crankshaft * New rods with 150,000 psi bolts * Forged pistons * Moly rings * Balanced rotating assembly * High-volume oil pump * Hydraulic roller camshaft * Heavy-duty, double-roller timing set Cylinder heads: * Aluminum heads * Swirl-polished intake and exhaust valves * Hardened pushrods Plus: * 10 to 1 compression * Valve covers * Painted oil pan * Brass freeze plugs

3.0 out of 5 stars ( 6 )

$7,499.00

ATK High Performance GM 350 345 HP Stage 2 Long Block Crate Engines

Give your old ride new life with these ATK High Performance GM 350 345 hp/400 lbs.-ft. Stage 2 long block crate engines. These engines are built to perform and look great without breaking your budget. Each engine is expertly assembled, balanced, blueprinted, and topped with quality components, making it a solid, reliable mill to power your muscle car, street rod, or pickup. ATK GM 350 345 hp Stage 2 long block crate engines include: * Handpicked, OE remanufactured block * ATK cast iron 75cc/165cc 1.94/1.50 cylinder heads * ATK dual plane intake manifold * OE crankshaft * OE 5.7 in. powder metal connecting rods * Hypereutectic pistons * Moly rings * Hydraulic roller camshaft .495in/.502ex 110LSA * Stamped steel 1.5 ratio rocker arms * HEI distributor, plug wires and plugs * Valve covers * Timing cover and double roller timing set * 5 qt. oil pan, high volume oil pump with pickup tube * OE style long water pump * PowerBond 8 in. balancer and 168 tooth flexplate

5.0 out of 5 stars ( 2 )

$3,635.99

BluePrint Engines Ford 347 C.I.D. 415 HP Dressed Stroker Long Block Crate Engines

Satisfy your craving for horsepower with BluePrint 347 c.i.d. 415 hp dressed stroker long block crate engines are meticulously-built Blue Oval engines from a solid, reputable company that does the job right and stands behind their work. BluePrint custom-built crate and stroker performance engines are always balanced and dyno-tested to add a lot of muscle to your fun! Plus, they're shipped with the dyno results so you can see the BluePrint difference! So, where will you get your horsepower from? Block: * New BluePrint cast iron block * Square and parallel decked * Align-honed main bearing bore * Cylinders honed on computer-controlled machine to within .0002 in. straightness and roundness * Cylinders are sonic tested for thickness Rotating assembly: * New cast steel crankshaft * New rods with 150,000 psi bolts * Forged pistons * Moly rings * Balanced rotating assembly * High-volume oil pump * Hydraulic roller camshaft * Heavy-duty, double-roller timing set Cylinder heads: * Aluminum heads * Swirl-polished intake and exhaust valves * Hardened pushrods Plus: * Dual plane, satin aluminum intake manifold * Carburetor * Distributor * Valve covers * Painted oil pan

4.5 out of 5 stars ( 8 )

$8,199.00

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$10,799.00

ATK High Performance Ford 460 545 HP Stage 3 Long Block Crate Engines

Tear up the asphalt with ATK High Performance Ford 460 545 hp Stage 3 long block crate engines. These engines are built from the ground up to perform exactly like a big block Ford should--awesome! ATK combines the highest quality components in a hand-built, rock-solid package that is capable of huge horsepower and a mountain of torque--perfect for getting you down the street or strip in jaw-dropping style. ATK Ford 460 545 hp Stage 3 crate engines include: * Handpicked, remanufactured blocks * Performance aluminum cylinder heads * Intake manifold * Carburetion * OE cast crankshaft and OE connecting rods * Hypereutectic pistons * Hydraulic flat tappet camshaft * Cam lift- .585 int./.585 exh. * Cam duration at 0.50- 253 int./253 exh. * 9.5:1 compression * Distributor, plug wires, and plugs * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube * Water pump * Front damper and flexplate

3.2 out of 5 stars ( 5 )

$10,414.99

ATK High Performance Chevy 383 Stroker Race Series Short Blocks

Hardcore engines need a hardcore bottom end; that's why ATK High Performance developed these Chevy 383 Stroker Race Series short blocks. These short blocks are built around the strongest components available so that they can handle serious horsepower for your race car or hardcore street machine. These ATK High Performance Chevy 383 Stroker Race Series short blocks include the following: * Handpicked and seasoned 4-bolt main block * Aligned and honed main bores * Forged 4340 crankshaft * 3.75 in. stroke * Forge H-beam connecting rods * Forged dish top pistons

5.0 out of 5 stars ( 3 )

$3,828.99

ATK High Performance GM 383 Stroker 500 HP Stage 3 Long Block Crate Engines

Be ready for the street or the strip with ATK High Performance GM 383 Stroker 500 hp Stage 3 long block crate engines. They are built using bulletproof components and true craftsmanship to create a beast that is ready to tear up the track, but is reliable enough for the street. Producing an incredible 500 hp and 505 ft.-lbs. of tire-shedding torque, these engines will be sure to get everyone's attention at the next track day or car show. ATK long blocks include: * Handpicked, remanufactured block * Performance aluminum cylinder heads * Intake manifold * Carburetion * 4340 forged crankshaft and H-beam connecting rods * Forged pistons * Hydraulic roller camshaft * Distributor, plug wires, and plugs * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube * Water pump * Front damper and flexplate

5.0 out of 5 stars ( 1 )

$7,798.99

ATK High Performance GM 383 Stage 1 Marine Long Block Crate Engines

Replace the tired small block in your boat with ATK High Performance GM 383 Stage 1 marine long block crate engines. They are built from the ground up with off-shore performance in mind. These hand-built and balanced engines utilize Vortec power and stroker torque to produce an awesome 345 hp and 445 ft.-lbs. of twist that will get you moving on the open water. Each engine features brass freeze plugs and corrosion-resistant marine gaskets to keep the engines healthy and reliable. ATK GM 383 Stage 1 Marine long block crate engines include: * Handpicked, remanufactured blocks * Dart Iron Vortec cylinder heads * Nodular steel crankshaft and 4340 I-beam connecting rods * Hypereutectic pistons * Hydraulic roller camshaft * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube

5.0 out of 5 stars ( 5 )

$4,417.99

ATK High Performance Ford 302 375 HP Stage 2 Long Block Crate Engines

Bring your ride to life with ATK High Performance Ford 302 375 hp Stage 2 long block crate engines. These engines are based on the tried and true Ford 302 and are built to perform. ATK hand-assembles and balances each engine using top-quality parts to help them produce awesome power. Whether you are replacing an older, tired engine or just looking for a little more performance, ATK has you covered. Details and specs: * 375 hp/380 lbs.-ft. * Compression Ratio: 9.5:1 * ATK Aluminum heads * Hydraulic roller cam * Cast steel crankshaft 50oz external balance * Hypereutectic pistons * Seasoned OE roller block 1987-1995 * 4.040 in. bore x 3.000 in. stroke * One-piece rear main seal * Mechanical fuel pump provision * Dual sump oil pan HP08C, Front sump oil pan HP78C * Melling high volume oil pump * Double roller timing set * Left Hand inlet reverse rotation water pump (HP08C) * Right Hand inlet standard rotation water pump (HP78C) * 50oz external balancer * TCI 529610 157 tooth flexplate with 50oz balance * Edelbrock Performer RPM dual plane intake 7121 * Pro Billet distributor with melonite gear Cylinder Heads: * ATK aluminum cylinder heads * 58cc chamber * 2.02 in. intake/1.60 in. exhaust valves * 185cc intake runners * 1.6 aluminum roller rockers Roller Cam specs: * .512 intake/.512 exhaust * 220 intake/224 exhaust duration @ .050 - 112-degree lobe separation Recommended: * 34-36 degrees total timing * 13726548 firing order * Autolite 3923 spark plugs 0.035 gap * 8mm Spark plug wires * 680 cfm carburetor * Mechanical 80 GPH Fuel pump * 2,400-2,800 Stall converter * 91 plus octane fuel

3.0 out of 5 stars ( 2 )

$5,866.99

ATK High Performance Chevy LQ4 6.0L 460 HP Long Block Crate Engines

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

4.4 out of 5 stars ( 10 )

$5,049.99

BluePrint Motorsports GM 396 C.I.D. 530 HP Stroker Base Long Block Crate Engines

BluePrint Motorsports presents their all-forged small block Chevy-compatible engine, built for hard-hitting racing performance. Available carbureted or fuel injected, they are designed to handle extreme conditions and come packed with race-proven components. Select the best engine for your build. BluePrint Motorsports GM small block-compatible 396 cu. in. engines base-dressed crate engines will include either a Holley 950cfm double pumper carburetor with mechanical secondaries or a Holley Sniper 2 EFI self-tuning kit in chrome, along with the following: * BluePrint Engines aluminum intake manifold * BluePrint Engines valve covers * Moroso Street/Strip oil pan * HEI distributor * High-volume oil pump * Timing cover * Balancer Specifications and features for both carbureted and fuel injected engines: * 530 hp/480 lb.-ft. of torque * Compression ratio: 10.4:1 * Requires Race Fuel of 100+ octane * BluePrint Engines high-strength cast iron block -- Cylinders honed on computer-controlled machine to within .0002 straightness and roundness -- Cylinders are sonic tested for thickness -- Drilled and tapped for clutch linkage -- Align honed main bearing bore -- Mechanical fuel pump provision -- Passenger side dipstick -- One-piece rear main seal -- 4-bolt main -- 4.000 in. bore * Rotating assembly -- BluePrint forged crankshaft -- 3.875 in. stroke -- Forged I-beam 6.000 in. connecting rods -- BluePrint Engines forged 4032 pistons -- Internally balance front--externally balanced rear * BluePrint aluminum cylinder heads -- 64cc chamber -- 2.08 in. intake/1.60 in. exhaust valves -- 220cc intake/67cc exhaust runners * Hydraulic roller camshaft -- .638 intake/.622 exhaust lift -- 251 intake/259 exhaust duration at .050 in. -- 114-degree LSA * Ignition timing: 34 degrees total Note: BluePrint Motorsports engines are built for maximum performance and are intended for extreme duty applications. Because of the high-stress nature of their use, these engines are sold without any warranty, expressed, or implied. This engine features a true 4-inch bore, which mathematically yields 389 CID with a 3.875-inch stroke.

Not Yet Reviewed

$8,299.00

Briggs & Stratton 206 Racing Crate Engines

Briggs & Stratton 206 racing crate engines are factory-sealed long blocks with ground cams and controlled piston pop-up (reducing compression variance). These budget-friendly mills feature a simplified IKF/WKA rule set designed to maintain a stock configuration, right down to the factory-shipped carburetor jets. Simply put: the 206 engines even the playing field so that drivers can focus on the important task at hand--winning the race! Briggs & Stratton 206 crate engine features and specs: * Primary use: Karting, Microstocks, Jr. Drag Racing * Engines are assembled by hand in Milwaukee, WI using tooling and dies specifically designed for racing for unparalleled repeatability * Reinforced, cast iron sleeved, dual ball bearing racing cylinder * Single cast, custom aluminum alloy cylinder head with high-flow intake port, custom seat/guide material * Squeeze cast, T-7 heat-treated aluminum rod with reinforced I-beam * Carbon steel crankshaft with induction-hardened, micro-polished, crankpin-reinforced timing gear * Cam ground, barrel-faced, eutectic alloy piston with 3-piece ring set with chrome faced top ring * .255 max. lift ground cam with nitrited lobes and built-in mechanical compression release * High-silicon, racing-engineered valve springs * High-grade stainless steel dished valves with nitrited exhaust * 3-piece, automotive-style keepers and reinforced rocker arm and lock ball * PVL digital ignition with built-in 6,100 rpm rev limiter * PVL steel hub, cast aluminum flywheel * Briggs & Stratton tooled 22mm round slide, fully adjustable jet carburetor * Custom grafoil composition head gasket

4.71 out of 5 stars ( 7 )

$759.00

ATK High Performance Chevy LM7 383 Short Blocks

ATK Chevy LM7 383 short blocks support your build with a solid foundation. Produced for the 1999-2007 trucks, LM7 engines are very popular engines to swap into musclecars and other LS swap vehicles. ATK High Performance Chevy LM7 383 short blocks are built for naturally aspirated engines up to 700 hp. Your ATK LM7 engine may include these components for optimal performance: * Block: GM LM7 5.3L * Bore/stroke: 3.903 x 4.000 * Displacement: 383 cu. in. * Crankshaft: K1 4340 forged steel, internally balanced 24-tooth * Connecting rods: Scat Premium Pro 4340 forged I-beam with ARP 8740 bolts * Pistons: Wiseco 2618 forged aluminum with coated skirts * Piston rings: Wiseco GFX (alloy steel top ring) * Camshaft bearings: Installed and clocked to OEM position * Freeze plugs: Brass installed and sealed * Oil galley plugs: installed and sealed * Weight: 285 lbs.

Not Yet Reviewed

$4,098.99