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 HP42C Chevy 540 Complete 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: 489-496CI
• 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: Champ street/strip 6qt with kick outs #CP209
• Oil Pump: Melling high volume
• Balancer: Internal balance 8”
• 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 HP631PC Chevy 496 Stroker Complete Engine 600+ HP appeared first on ATK High Performance Engine.

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 HP411PC Chevy 489CI Complete Engine 565HP appeared first on ATK High Performance Engine.

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 HP451PC Chevy 454 Complete Engine 525HP appeared first on ATK High Performance Engine.

Engine Specifications:
• HP: 820+
• TQ: 800+
• Block: Dart Big M 10.2 Deck 4 bolt main 2pc seal
• Bore/Stroke: 4.600” x 4.750”
• Displacement: 632
• Crankshaft: Scat 4340 forged internal balance
• Rods: Scat 4340 forged H beam with ARP 8740 bolts
• Pistons: Forged 10.3:1 compression
• Rings: Moly
• Camshaft: Hyd. roller
• Cam Specs: 267/277 @50 .680in/.680ex 110LSA
• Timing Chain: Double roller
• Cylinder Heads: ATK aluminum 121cc/360cc 2.300/1.880
• Rocker Arms: Howards billet aluminum 1.7 roller rockers
• Oil Pan: Moroso 7qt street/strip pan with windage tray
• Oil Pump: Melling high volume
• Balancer: Power Bond SFI 7.950”
• Flexplate/Flywheel: N/A
• Intake Manifold: Edelbrock Super Victor
• Distributor: Pro billet (Iron gear)
• Water Pump: N/A
• Carburetor: Quick Fuel 1150CFM mechanical secondary
• Fuel Pump: N/A
• 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 1/4” 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 HP108C Chevy 632CI Complete Engine 820HP appeared first on ATK High Performance Engine.