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Summit Racing™ Chevy LS 5.3L 450HP Long Block Crate Engines

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

4.32 out of 5 stars ( 47 )

$3,849.99

ATK High Performance GM 383 Stroker 415 HP Stage 1 Long Block Crate Engines

Give your ride the extra twist only a stroker can deliver with ATK High-Performance GM 383 Stroker 415 hp Stage 1 long block crate engines. These engines feature quality components and professional assembly to give your car or truck the kick it needs. They produce up to 460 ft.-lbs. of torque—that's enough to get you rolling in a cloud of tire smoke! ATK GM 383 Stroker 415 hp Stage 1 long block crate engine specs: * Seasoned OE 4-bolt main roller block * 4.040 x 3.750 bore/stroke * 383 c.i.d. displacement * Scat nodular iron crankshaft (3.750 in. stroke; one-piece; externally balanced rear/internal front) * Scat 4340 forged I-beam connecting rods (5.700 in.) with ARP bolts * Hypereutectic pistons * Moly piston rings with 9.7:1 compression ratio * Hydraulic roller camshaft with 220/224 duration at 0.050, 0.528 in./0.536 ex. lift, 112LSA * Installed camshaft bearings clocked to OEM position * ATK high-performance aluminum cylinder heads with 2.02/1.60 ex. valves * Installed and sealed brass freeze plugs (oil galley plugs also installed and sealed) * Billet aluminum 1.6 ratio rocker arms * 5 qt. OE oil pan * 350 lbs.

4.8 out of 5 stars ( 5 )

$4,498.99

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

ATK High Performance Chevy LM7 5.3L Short Blocks

ATK High Performance Chevy LM7 5.3L short blocks are assembled with OE flat top pistons and offer these engine specifications: * Seasoned 5.3L LM7 block * 1999-2007 year range * Bore/stroke: 3.810 in. x 3.622 in. * Displacement: 330 cu.in * OEM GM 24-tooth reluctor wheel crankshaft * OEM GM forged powder metal rods * Stock hypereutectic flat top pistons with two valve reliefs * Compression ratios: 61cc = 9.8:1/64cc = 9.5:1/68cc = 9.1:1 -- Can vary due to deck height/gasket thickness * Plasma moly rings * Camshaft bearings: Installed and clocked to OEM position * Freeze plugs: Installed and sealed * Oil galley plugs: Installed and sealed

Not Yet Reviewed

$2,043.99

ATK High Performance Chevy LQ9 6.0L Short Blocks

ATK High Performance Chevy LQ9 6.0L short blocks with OE flat top pistons are great beginnings for your mild street build, or just as a replacement for a tired short block. ATK takes the hard work out of your project by selling blocks that are ready to complete yourself. Every great build needs a solid foundation. Start yours with one of ATK's Chevy LQ9 6.0L short blocks. Technical specifications: * Block: Seasoned 6.0L cast no. 364 or 184 * Bore/stroke: 4.030 x 3.622 * Year range: 2001-2007 * Displacement: 370 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. stock bolts * Pistons: OE hypereutectic flat top with no valve reliefs * Piston rings: Moly rings * Compression ratio: 64cc = 10.7:1, 68cc = 10.2:1, 72cc = 9.8:1 * Camshaft bearings: Installed and clocked to OEM position * Freeze plugs: Brass installed and sealed * Oil galley plugs: Installed and sealed * Weight: 285 lbs.

4.29 out of 5 stars ( 7 )

$3,198.99

ATK High Performance GM 383 Stroker 435 HP Stage 1 Long Block Crate Engines

Give your ride the extra twist only a stroker can deliver with ATK High-Performance GM 383 Stroker 435 hp Stage 1 long block crate engines. These engines feature quality components and professional assembly to give your car or truck the kick it needs. They produce up to 475 ft.-lbs. of torque—that's enough to get you rolling in a cloud of tire smoke! ATK GM 383 Stroker 435 hp Stage 1 long block crate engine specs: * Seasoned OE 4-bolt main roller block * 4.040 x 3.750 bore/stroke * 383 c.i.d. displacement * Scat nodular iron crankshaft (3.750 in. stroke; one-piece; externally balanced rear/internal front) * Scat 4340 forged I-beam connecting rods (5.700 in.) with ARP bolts * Forged flat-top pistons with two valve reliefs * Moly piston rings with 10.1:1 compression ratio * Hydraulic roller camshaft with 220/224 duration at 0.050, 0.528 in./0.536 ex. Lift, 112LSA * Installed camshaft bearings clocked to OEM position * Dart SHP aluminum cylinder heads with 72cc/180cc port volume and 2.02/1.60 in. valves * Installed and sealed brass freeze plugs (oil galley plugs also installed and sealed) * Billet aluminum 1.6 ratio full roller rocker arms * 5 qt. OE oil pan * 350 lbs.

Not Yet Reviewed

$4,998.99

ATK High Performance Chevy LM7 5.3L GEN IV Short Blocks

ATK High Performance Chevy LM7 5.3L Gen IV short blocks are assembled with OE flat top pistons and offer these engine specifications: * Seasoned 5.3L LM7 Gen IV block * 1999-2007 year range * Bore/stroke: 3.810 in. x 3.622 in. * Displacement: 330 cu.in * OEM GM 58-tooth reluctor wheel crankshaft * OEM GM forged powder metal rods * Stock hypereutectic flat top pistons with two valve reliefs * Compression ratios: 61cc = 9.8:1/64cc = 9.5:1/68cc = 9.1:1 -- Can vary due to deck height/gasket thickness * Plasma moly rings * Camshaft bearings: Installed and clocked to OEM position * Freeze plugs: Installed and sealed * Oil galley plugs: Installed and sealed

Not Yet Reviewed

$2,206.99

ATK High Performance Chevy LM7 5.7L/347 Short Blocks

ATK Chevy LM7 5.7L/347 short blocks provide a solid foundation for your build. 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 5.7L/347 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 3.622 * Displacement: 5.7/347 c.i.d. * Crankshaft: OE reground 3.622 in., 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

$3,298.99

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

ATK High Performance Chrysler Gen III Hemi 392 Short Blocks

ATK High Performance Chrysler Gen III Hemi 392 short blocks offer two robust bottom ends for your hot rod. One is perfect for your potent street or race build, while the other is designed for engines that will be running boost or nitrous. These Hemi blocks feature top-of-the-line Scat forged stroker kits. They include clocked camshaft bearings set to the OEM position, plus installed/sealed freeze plugs and oil galley plugs. You wouldn't build a house on sand, so don't start your big block Mopar build with anything less than ATK High Performance Chrysler Gen III Hemi 396 short blocks. Features, items, and specs may include: * Seasoned OE main block (ARP main studs with boost/nitrous version) * 3.927 x 4.050 bore/stroke * Scat 4.050 in. stroke crankshaft (internally balanced) * Scat 4340 forged 6.125 in. connecting rods with ARP bolts * Forged -2cc flat top pistons * Moly or Plasmamoly with steel top ring gapped for boost/nitrous piston rings (depending on application) * 81cc=9.9:1/85cc=9.6:1/89cc=9.2:1 compression ratio (based off .028 in. gasket)

Not Yet Reviewed

$4,199.99

ReadyLift Suspension Coil Spring Lift Kits (4.5 in.)

The all-new 4.5 in. coil spring lift kits allow for even more ground clearance while going to a 37 in. tire. Springing up to the new 4.5 in. lift yields all the bells and whistles of a big 6 in. kit but at a slightly lower, garage-able stance. These kits come with: heavy-duty steel radius arm drop brackets, heavy-duty fabricated steel front, and rear (2500 only) track bar brackets, forged dropped pitman arm, sway bar relocation brackets—and bump stop extensions, preventing over-compression of the included Falcon 1.1 monotube front and rear shocks. Both 4.5 in. Ram HD kits include ReadyLift Suspension's unique CNC-machined 6061-T6 billet aluminum Driveline Indexing System (DIS) that re-clocks the transfer case to properly align the front output shaft for improved driveline angles. The Ram 2500 HD comes with the standard output diesel engine DIS system. Kit 49-19420 includes everything in ReadyLift's popular 6 in. lift kit, as well as these new DIS re-positioning components. Heavy-duty and great riding 4.5 in. lift front springs, 3 in. lift rear coil spring spacers, heavy-duty radius arm drop brackets, heavy-duty fabricated steel front, and rear track bar brackets, dropped cast iron pitman arm, front/rear sway bar relocation brackets, and bump stop extensions preventing over-compression of the new Falcon 1.1 monotube shocks front/rear shocks are all included in this premium kit. Details at a glance: * For use on diesel engine Ram 2500 4WD HD trucks only * All-new 2019-2022 Ram 2500 4WD HD 4.5 in. lift kit * 4.5 in. front/3 in. rear spring lift kit * Includes all-new transfer case clocking ring and new heavy-duty transmission crossmember * Includes four Falcon 1.1 monotube shocks tuned specifically for the Ram 2500 HD * Allows for up to 37x13.50 tires on 20 in. x 9 in. wide wheels with -18 offset. * Note: Does not work with Factory Air suspension or Auto Level system (factory helper bags)

Not Yet Reviewed

$2,449.95

Ranger DST2420 Wheel Balancers

Ranger DST2420 wheel balancers are highly accurate and dependable, featuring proprietary digital sensor technology for critical reliability and repeatability. They're built with a gritty toughness that guarantees perfectly balanced wheels day after day, around the clock. Like all of the DST Series wheel balancers, these units feature a proven direct-axis drive system--accurate to within hundredths of an ounce, ensuring that your wheels are balanced and vibration-free. The Ranger DST2420 balancers automatically calculate the exact weight needed to achieve optimal balance for almost every tire and wheel configuration on the planet; and brightly displayed LEDs mark the exact amount and location in just six seconds. A full menu of time-saving features--including dynamic, static, and performance alloy settings--allows you to balance OEM wheel configurations and performance wheels with minimal effort and speed.

5.0 out of 5 stars ( 1 )

$3,295.00

Wilwood AERO6 Big Brake Rear Electronic Parking Brake Kits

Wilwood AERO6 Big Brake electronic bolt-on parking brake kits are designed for the rear of a vehicle, featuring an integrated electronic parking brake (EPB) system. Each kit includes 6-piston AERO6 calipers and a specially designed EPB caliper that uses a 12 V electrical connection for activation, eliminating the need for a traditional mechanical parking brake cable. They're engineered to provide superior stopping power and a modern, button-operated parking brake function. Key features of the kit: * AERO6 Calipers: The kits use large, 6-piston AERO6 calipers, which are designed to handle significant braking loads and improve overall performance * Integrated Electronic Parking Brake (EPB): A unique feature is the separate EPB caliper that works electronically, activated by a button and a 12 V connection. This offers a cleaner look and simpler installation compared to cable-actuated systems * Compatible with OE systems: The caliper piston sizes are engineered to be compatible with the factory master cylinder output and ABS controls, ensuring balanced braking and proper functionality. * High-performance components: Kits include high performance pads and rotors (type varies by specific kit application), which provide superior friction and heat dissipation compared to stock parts * Customization and fitment: Optional finishes and rotor designs allow for personalization, and the backing plate allows for clocking the calipers to optimize fitment and clearance on the vehicle's axle * Simplified installation: The EPB system is designed for simpler installation because it does not require routing mechanical cables from the parking brake pedal to the caliper. The kit includes all necessary hardware, including a control unit and harness assembly, to complete the installation.

Not Yet Reviewed

$4,849.99

ReadyLift Suspension MAX3.3 Ram Diesel Lift Kits

ReadyLift Suspension MAX3.3 Ram diesel lift kits provide plenty of clearance for aggressive tires with no rubbing, delivering a beefy, tough look. Featuring Falcon 3.3 adjustable shocks, these kits supply numerous other components to give your truck the perfect lifted stance, plus performance. ReadyLift Suspension MAX3.3 Ram diesel lift kits are designed with proprietary front single rate and rear dual rate coil springs, heavy-duty fabricated steel front and rear track bar brackets, forged dropped pitman arm, front/rear sway bar relocation brackets, bump stop extensions preventing over-compression of the Falcon 3.3 adjustable front and rear shocks, and ReadyLift's tubular radius arms that are built to handle use and abuse, as well as serve as critical alignment components. Some Ram HD trucks can experience a slight vibration after lifting due to driveline angle sensitivity. These ReadyLift kits address this by including a unique CNC-machined 6061 T-6 billet aluminum Driveline Indexing System (DIS) that re-clocks the transfer case, aligning the front output shaft for improved driveline angles. They also provide a stout heavy-duty steel crossmember that accommodates the new T-case position, resulting in a smooth driving experience on or off-road. Features, specs, notes: * 6 in. front lift with a coil spring rear lift for the perfect lifted stance * Heavy-duty tubular radius arms correct the caster angle * Maintains factory turning radius without rubbing (using the recommended wheel and tire size) * Maintains factory suspension geometry and articulation * Allows for up to 37 in. x 12.50 in. tires on 9 in. wide wheels with +01 to +18 offset. * Falcon 3.3 fast adjust dampers offer a wide range of adjustability for specific terrain and/or handling characteristics with two separate knobs to tune to your preference * 3-position fast adjust knob for soft, custom, and firm compression -- Soft mode allows a partial bypass of the main piston for a softer ride * 8-position micro adjust dial offers refined damping adjustments * Reservoir design increases nitrogen-to-oil ratio for consistent damping over wide temperature ranges * Hard anodized large bore 6061 T-6 aluminum shock body for impact and corrosion resistance, as well as increased oil volume for consistent performance * VOD (Volume Optimized Damping) features a digressive linear piston for quicker ramp-up for reduced body roll and an overall increase in damping to reduce bottom out when pushed to the limit * Red Line High VI shock oil for consistent performance across all temperatures from 50 degrees F to 450 degrees F with anti-wear and lubricity agents

Not Yet Reviewed

$3,889.95

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