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: 600
• TQ: 605
• Block: Seasoned OE 4 bolt main 1pc seal Gen V 1991-1995
• Bore/Stroke: up to 4.310” x 4.250”
• Displacement: 496CI
• Crankshaft: Scat 4340 forged 4.250” stroke internally balanced 1pc
• Rods: Scat 4340 forged H beam 6.385” with ARP 8740 bolts
• Pistons: Forged 10.1:1` compression
• Rings: Moly
• Camshaft: Hyd. roller
• Cam Specs: 247/255 @50 .680in/.680ex 110LSA
• Timing Chain: Double roller
• Cylinder Heads: Edelbrock aluminum 118cc/315cc 2.19/1.88
• Rocker Arms: Howards billet aluminum 1.7 roller rockers
• Oil Pan: Moroso street/strip 6qt with kick outs #20413
• 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 aluminum long pump #9242
• Carburetor: Quick Fuel 850CFM mechanical secondary no choke #Q-850
• Fuel Pump: No mechanical fuel pump provision, must run an electric pump
• Spark Plugs: Autolite #3923
• 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 HP631P Chevy 496 Stroker Base Engine 600+ HP appeared first on ATK High Performance Engine.

Recommended Components:
• Balancer: Professional Products internal balance 8” #80004
• Flexplate/Flywheel: Pioneer #FRA-100 internal balance 168 tooth
• Intake Manifold: Edelbrock performer RPM #7161
• Distributor: HEI (Iron gear)
• Water Pump: OE long pump
• Carburetor: Quick Fuel 780CFM vacuum secondary electric choke #HR-780
• Fuel Pump: No mechanical fuel pump provision, must run an electric pump
• Spark Plugs: Autolite #3923
• 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: 2800+
• 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 HP411P Chevy 489CI Base Engine 565HP Gen V appeared first on ATK High Performance Engine.

Recommended Components:
• Balancer: PowerBond external balance 8” #PB1451-N
• Flexplate/Flywheel: Pioneer #FRA-321 external balance 168 tooth
• Intake Manifold: Edelbrock performer RPM dual plane #7161
• Distributor: HEI (Iron gear)
• Water Pump: OE long pump
• Carburetor: Quick Fuel 780CFM vacuum secondary’s with electric choke #HR-780
• Fuel Pump: No mechanical fuel pump provision, must run an electric pump
• Spark Plugs: Autolite #3923
• Spark Plug Wires: 8mm

Engine Info:
• Oil: Conventional / Non Synthetic 10W30 with Comp Cam zinc additive #159 for first 3000 miles
• Oil Filter: Wix or K&N per application
• Timing: 34-36 Degrees
• Spark Plug Gap: .035”
• Firing Order: 18436572
• Octane: 91+
• Stall Converter: 2200-2500
• 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 HP451P Chevy 454 Base Engine 525HP 1pc Seal appeared first on ATK High Performance Engine.