BBC Engines - ATK High Performance Engine https://atkhp.com/product-category/gm-crate/gm-mid-dress-engine/gm-mid-bbc-engines/ Building Performance Engines Since 1936 Fri, 07 Jun 2024 20:45:35 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.5 https://atkhp.com/wp-content/uploads/2022/12/cropped-ATKHP300x300-32x32.png BBC Engines - ATK High Performance Engine https://atkhp.com/product-category/gm-crate/gm-mid-dress-engine/gm-mid-bbc-engines/ 32 32 ATK HP42M Chevy 540 Mid Dress Engine 660+ HP https://atkhp.com/product/atk-hp42m-chevy-540-mid-dress-engine-660-hp/ https://atkhp.com/product/atk-hp42m-chevy-540-mid-dress-engine-660-hp/#respond Thu, 25 May 2023 15:59:44 +0000 https://atkhp.com/?post_type=product&p=4809 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. […]

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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
• 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

Recommended Components:
• Carburetor: Quick Fuel 850CFM mechanical secondary no choke #Q-850
• 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.

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ATK HP631PM Chevy 496 Stroker Mid Dress Engine 600+ HP https://atkhp.com/product/atk-hp631pm-chevy-496-stroker-mid-dress-engine-600-hp/ https://atkhp.com/product/atk-hp631pm-chevy-496-stroker-mid-dress-engine-600-hp/#respond Thu, 25 May 2023 15:57:21 +0000 https://atkhp.com/?post_type=product&p=4806 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 […]

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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
• 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

Recommended Components:
• 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.

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ATK HP411PM Chevy 489CI Mid Dress Engine 565HP https://atkhp.com/product/atk-hp411pm-chevy-489ci-mid-dress-engine-565hp/ https://atkhp.com/product/atk-hp411pm-chevy-489ci-mid-dress-engine-565hp/#respond Thu, 25 May 2023 15:53:05 +0000 https://atkhp.com/?post_type=product&p=4804 Engine Specifications: • HP: 565 • TQ: 595 • Block: Seasoned OE 4 bolt main 1pc seal Gen V 1991-1995 • Bore/Stroke: up to 4.310” x 4.250” • Displacement: 489CI • Crankshaft: Scat nodular iron 4.250” stroke internally balanced 1pc • Rods: Scat 4340 forged I beam 6.385” with ARP 8740 bolts • Pistons: Forged […]

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Engine Specifications:
• HP: 565
• TQ: 595
• Block: Seasoned OE 4 bolt main 1pc seal Gen V 1991-1995
• Bore/Stroke: up to 4.310” x 4.250”
• Displacement: 489CI
• Crankshaft: Scat nodular iron 4.250” stroke internally balanced 1pc
• Rods: Scat 4340 forged I beam 6.385” with ARP 8740 bolts
• Pistons: Forged 10.1:1` compression
• Rings: Moly
• Camshaft: Hyd. roller
• Cam Specs: 237/243 @50 .635in/.640ex 112LSA
• Timing Chain: Double roller
• Cylinder Heads: Edelbrock aluminum 110cc/290cc 2.19/1.88
• Rocker Arms: Billet aluminum 1.7 roller rockers
• Oil Pan: OE 5qt
• Oil Pump: Melling high volume
• 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

Recommended Components:
• 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 HP411PM Chevy 489CI Mid Dress Engine 565HP appeared first on ATK High Performance Engine.

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ATK HP451PM Chevy 454 Mid Dress Engine 525HP https://atkhp.com/product/atk-hp451pm-chevy-454-mid-dress-engine-525hp/ https://atkhp.com/product/atk-hp451pm-chevy-454-mid-dress-engine-525hp/#respond Thu, 25 May 2023 15:34:35 +0000 https://atkhp.com/?post_type=product&p=4791 Engine Specifications: • HP: 525 • TQ: 550 • Block: OE block 1991-1995 Gen V 4 bolt main 1pc seal (NO MECHANICAL FUEL PUMP PROVISION) • Bore/Stroke: up to 4.310” x 4.000” • Displacement: 454 • Crankshaft: OE Reground external balance • Rods: OE powder metal 6.135” • Pistons: Forged 9.9:1 compression • Rings: Moly […]

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Engine Specifications:
• HP: 525
• TQ: 550
• Block: OE block 1991-1995 Gen V 4 bolt main 1pc seal (NO MECHANICAL FUEL PUMP PROVISION)
• Bore/Stroke: up to 4.310” x 4.000”
• Displacement: 454
• Crankshaft: OE Reground external balance
• Rods: OE powder metal 6.135”
• Pistons: Forged 9.9:1 compression
• Rings: Moly
• Camshaft: Hyd. roller
• Cam Specs: 225/235 @50 .595in/.601ex 112LSA
• Timing Chain: Double roller
• Cylinder Heads: Edelbrock aluminum E-street 110cc/290cc 2.19/1.88
• Rocker Arms: Billet aluminum 1.7 ratio
• Oil Pan: Rear sump
• Oil Pump: Melling high volume
• 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

Recommended Components:
• 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 HP451PM Chevy 454 Mid Dress Engine 525HP appeared first on ATK High Performance Engine.

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