NO DISCOUNTS AVAILIBLE

Engine Specifications:
• HP: 475
• TQ: 430
• Block: New GM 5.3L Aluminum
• Bore/Stroke: 3.780”x 3.622
• Displacement (cu.in): 323
• Crankshaft: OEM GM 58 tooth reluctor wheel
• Rods: Stock GM
• Pistons: Hypereutectic Flat Top 9.9:1 compression
• Rings: Moly
• Camshaft: Hyd. roller
• Cam Specs: 223/231 @50 .610/.617 112LSA COMP CAM #54-457-11
• Cylinder Heads: OE 799 or 243 aluminum 65cc 2.000”/1.575” valves
• Rocker Arms: OE powdered metal 1.7 ratio

Recommended Components:
• Oil- 5W30
• Fuel System – OE EFI System
• Intake – Stock Fuel Injected or Aftermarket
• Balancer- Stock Internally Balanced
• Flex plate/Flywheel- Stock Internally Balanced
• Spark Plug- Stock
• Spark Plug Gap- .035”
• Timing- Set to Factory Specifications Via PCM Module (Tune Required)
• Firing Order- Stock
• Fuel – 91 Octane
• Recommended Stall Converter- 2200+ based on application
• Headers- 1 7/8” depending on application

Notes: This engine is a brand new GM 5.3L that GM built for 2005-2009 Trucks and SUV’s. ATK did a camshaft and valve spring upgrade along with AFM/DOD delete. For optimal Performance you will need headers, chassis dyno tune (required) and upgraded injectors. If you are using this as a swap for a vehicle mentioned above, the AFM/DOD will have to be turned off in the ECM. Power figures may vary depending on which induction system is used. Dyno figures are based on using a 750CFM carburetor and Vic Jr. intake manifold with 1 7/8 headers.

Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.

The post ATK Chevy HPLC9N 5.3L Engine 475HP/435TQ 58 Tooth appeared first on ATK High Performance Engine.

NO DISCOUNTS AVAILIBLE

Engine Specifications:
• HP: 475
• TQ: 430
• Block: New GM 5.3L Aluminum
• Bore/Stroke: 3.780”x 3.622
• Displacement (cu.in): 323
• Crankshaft: OEM GM 24 tooth reluctor wheel
• Rods: Stock GM
• Pistons: Hypereutectic Flat Top 9.9:1 compression
• Rings: Moly
• Camshaft: Hyd. roller
• Cam Specs: 223/231 @50 .610/.617 112LSA COMP CAM #54-457-11
• Cylinder Heads: OE 799 or 243 aluminum 65cc 2.000”/1.575” valves
• Rocker Arms: OE powdered metal 1.7 ratio

Recommended Components:
• Oil- 5W30
• Fuel System – OE EFI System
• Intake – Stock Fuel Injected or Aftermarket
• Balancer- Stock Internally Balanced
• Flex plate/Flywheel- Stock Internally Balanced
• Spark Plug- Stock
• Spark Plug Gap- .035”
• Timing- Set to Factory Specifications Via PCM Module (Tune Required)
• Firing Order- Stock
• Fuel – 91 Octane
• Recommended Stall Converter- 2200+ based on application
• Headers- 1 7/8” depending on application

Notes: This engine is a brand new GM 5.3L that GM built for 2005-2009 Trucks and SUV’s. ATK did a camshaft and valve spring upgrade along with AFM/DOD delete. For optimal Performance you will need headers, chassis dyno tune (required) and upgraded injectors. If you are using this as a swap for a vehicle mentioned above, the AFM/DOD will have to be turned off in the ECM. Power figures may vary depending on which induction system is used. Dyno figures are based on using a 750CFM carburetor and Vic Jr. intake manifold with 1 7/8 headers.

Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.

The post ATK Chevy HPLH6N 5.3L Engine 475HP/435TQ (Copy) appeared first on ATK High Performance Engine.

Recommended Components:
• Balancer: Internally Balanced – PowerBond #PB1046-N
• Intake Manifold: Weiand stealth dual plane #8150
• Distributor: HEI (Iron Gear)
• Water Pump: OE long pump
• Carburetor: Quick Fuel 680CFM Vacuum secondary’s electric choke #HR-680
• Fuel Pump: Holley mechanical 110GPH #12-327-11
• Spark Plugs: Autolite #3923
• 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”
• Firing Order: 18436572
• Octane: 91+
• Stall Converter: 2500+
• Exhaust: 1 ¾ Headers

Notes: This engine WILL NOT produce enough vacuum for power brakes.

Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.

The post ATK HP101 Chevy 383 Stroker Base Engine 460HP appeared first on ATK High Performance Engine.

Engine Info:
• Oil: Conventional / Non Synthetic 10W30
• Oil Filter: Wix or K&N
• Timing: 34-36 Degrees
• Spark Plug Gap: .035”
• Firing Order: 18436572
• Octane: 91+
• Stall Converter: 2200-2800
• Exhaust: 1 5/8+ Headers

Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. ATK reserves the right to substitute parts used in engines if necessary.

The post ATK HP36C-EFI Chevy 383 with FITECH EFI 435HP appeared first on ATK High Performance Engine.

Engine Specifications:
• HP: 380 Prop
• Block: OE roller block 4 bolt main 1pc seal 1996-2000
• Bore/Stroke: 4.040 x 3.750
• Displacement: 383 (Reman Mercruiser 377)
• Crankshaft: Scat 4340 forged external balance rear of crank/internal balance front of the crank
• Rods: Scat 4340 forged I beam with ARP 8740 bolts
• Pistons: Forged 9.1:1` compression
• Rings: Moly
• Camshaft: Hyd. roller
• Cam Specs: 215/220 @50 .457in/.474ex 112LSA
• Timing Chain: Single Roller
• Cylinder Heads: Dart vortec cast iron 67cc/165cc 2.02/1.60
• Rocker Arms: Stamped steel 1.5 rockers
• Oil Pan: Rear sump 5qt
• Oil Pump: Melling
• Flexplate/Flywheel: Pioneer #FRA-159 external balance 168 tooth (with Scat kit)

Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.

The post ATK HP105 Chevy 383 Stroker Marine Base Engine 380HP (Mercruiser MPFI 377CI ) appeared first on ATK High Performance Engine.

Recommended Components:
• Balancer: Internally balanced – PowerBond #PB1046-N
• Intake Manifold: Weiand stealth dual plane #8150
• Carburetor: Marine grade 650-680cfm
• Fuel Pump: Holley mechanical 110GPH #12-327-11
• Distributor: Marine grade with iron gear
• Spark Plugs: Autolite #3923
• Spark Plug Wires: Marine grade 8mm
• Water Pump: Per application

Engine Info:
• Oil: Conventional / Non synthetic 10W30
• Oil Filter: Wix or K&N
• Timing: 34-36 Degrees
• Spark Plug Gap: .035”
• Firing Order: 18436572
• Octane: 91+

Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.

The post ATK HP96 Chevy 383 Stroker Marine Base Engine 380HP appeared first on ATK High Performance Engine.

Recommended Components:
• Balancer: Internally balanced – PowerBond #PB1046-N or per application
• Intake Manifold: Marine grade dual plane
• Distributor: Marine grade pro billet (iron gear)
• Water Pump: Per application
• Carburetor: Marine grade Quick Fuel 650CFM mechanical secondary’s electric choke #M-650
• Fuel Injection: Can be used with MPFI, but custom tuning required to ECM.
• Fuel Pump: Marine grade 110GPH mechanical or an Electric fuel pump
• Spark Plugs: Autolite #605
• Spark Plug Wires: Marine grade 8mm per application

Engine Info:
• Oil: Conventional / Non Synthetic 10W30
• Oil Filter: Wix or K&N
• Timing: 34-36 Degrees
• Spark Plug Gap: .035”
• Firing Order: 18436572
• Octane: 91+
• Stall Converter: Stock
• Exhaust: 1 5/8 Headers or stock manifolds

Notes: This is a MARINE engine. The bearing clearances and camshaft profile are designed for marine use. Not intended for automotive applications.

Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. ATK reserves the right to substitute parts used in engines if necessary.

The post ATK HP90 Chevy 383 Vortec Marine Base Engine 345HP appeared first on ATK High Performance Engine.

The post ATK LS01C Chevy LS 408 Stroker Complete Engine 600+ HP appeared first on ATK High Performance Engine.

Engine Specifications:
• HP: 660
• TQ: 650
• Block: Dart Big M 4 bolt main 2pc seal
• Bore/Stroke: 4.500” x 4.250”
• Displacement: 540
• Crankshaft: Manley 4340 forged internal balance
• Rods: Manley 4340 forged H beam with ARP 8740 bolts
• Pistons: Forged 10.1:1` compression
• Rings: Moly
• Camshaft: Hyd. roller
• Cam Specs: 243/249 @50 .640in/.640ex 112LSA
• Timing Chain: Double roller
• Cylinder Heads: Dart Pro 1 aluminum 121cc/320cc 2.250/1.880
• Rocker Arms: Howards billet aluminum 1.7 roller rockers
• Oil Pan: Moroso 7qt street/strip pan with windage tray
• Oil Pump: Melling high volume

Recommended Components:
• Balancer: Professional Products internal balance 8” #80004
• Flexplate/Flywheel: Pioneer #FRA-100 internal balance 168 tooth
• Intake Manifold: Edelbrock performer RPM air gap #7562
• Distributor: Pro billet (Iron gear)
• Water Pump: Weiand action + long pump #9242
• Carburetor: Quick Fuel 950CFM mechanical secondary no choke #Q-950
• Fuel Pump: Holley mechanical 130GPH #12-454-13
• Spark Plugs: Autolite #3934
• Spark Plug Wires: 8mm

Engine Info:
• Oil: Conventional / Non Synthetic 10W30
• Oil Filter: Wix or K&N per application
• Timing: 34-36 Degrees
• Spark Plug Gap: .035”
• Firing Order: 18436572
• Octane: 91+
• Stall Converter: 3000+
• Exhaust: 2” Headers

Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.

The post ATK HP42 Chevy 540 Base Engine 660+ HP appeared first on ATK High Performance Engine.

Engine Specifications:
• HP: 620
• TQ: 550
• Block: New GM LS3 Aluminum
• Bore/Stroke: 4.065 x 4.000
• Displacement (cu.in): 415ci
• Crankshaft: Manley 4340 forged internally balanced 58 tooth reluctor
• Rods: Manley 4340 forged H beam with ARP 8740 bolts
• Pistons: Manley 2618 forged 10.3:1 compression
• Rings: Moly
• Camshaft: Hyd. Roller
• Cam Specs: 240/256@50 .625/.625 113LSA
• Timing Chain: Billet single roller
• Cylinder Heads: LS3 aluminum 68.4cc/260cc 2.16/1.59 stainless steel valves
• Rocker Arms: OE 1.7 ratio with bushing upgrade

Recommended Components:
• Oil Pump: Melling STD Volume high pressure
• Balancer: PowerBond #PB1480-SS SFI internally balanced
• Intake Manifold: Edelbrock victor Jr. #28457
• Carburetor: Quick Fuel 850cfm mechanical secondary’s #Q-850
• Spark Plugs: Autolite #104
• Spark Plug Wires: MSD #5574

Engine Info:
• Flexplate/Flywheel: Internally balanced
• Water Pump: Per application
• Oil: Conventional / Non Synthetic 10W40
• Oil Filter: Wix or K&N
• Timing Control: We recommend MSD #6014 with a baseline of: 10deg @ 0RPM, 20deg @ 500RPM, 26deg @ 1500RPM and 31deg @ 2500RPM-6500RPM.
• Spark Plug Gap: .040”
• Firing Order: 18726543
• Octane: 91+
• Stall Converter: 3000+
• Exhaust: 1 ¾” Headers

Notes: A PCV valve must be ran; please follow the valve cover instructions provided. 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; we recommend 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.

Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.

The post ATK LS02 Chevy LS3 415CI Stroker Base Engine 620+HP appeared first on ATK High Performance Engine.