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ATK Ford 502 Big Block 515 HP HP102M Stage 2 Mid-Dress LB
ATK Ford 502 Big Block 515 HP HP102M Stage 2 Mid-Dress LB delivers track-validated 8.2L power featuring aluminum heads and a professional mid-dress setup for street reliability.
- Massive 8.2L Big Block Displacement: Exceptional torque.
- High-Performance Aluminum Cylinder Heads: Superior cooling.
- Professional Stage 2 Mid-Dress: Intake included.
- Reliable Hydraulic Flat Tappet Design: Proven operation.
- Precision Internally Balanced Assembly: Smooth delivery.
One Year Limited Warranty Included.
ATK Ford 502 Big Block 525 HP HP19C Stage 3 Complete LB
ATK Ford 502 Big Block 525 HP HP19C Stage 3 Complete LB delivers professional-grade 8.2L Big Block power featuring high-flow aluminum heads and a complete long-block assembly.
- High-Performance 8.2L Big Block Displacement: Extreme torque.
- Elite High-Flow Aluminum Heads: Maximum cooling.
- Full Stage 3 Carbureted Completion: Ready-to-run.
- Hydraulic Flat Tappet Valvetrain: Reliable operation.
- Precision Internally Balanced Assembly: Superior smoothness.
One Year Limited Warranty Included.
ATK Ford 502 Big Block 525HP HP19C Stage 3 Complete Engine
ATK High Performance Engines HP19C Crate Engines unleash 545 hp to maximize high-rpm thermal efficiency during extreme performance runs, strictly restricted from pollution-controlled street vehicles.
- Cylinder adopts heavy cast iron V8 structures
- Horsepower thumps tested 545 hp dyno rating
- Engine Capacity covers massive 8.2L displacement setup
- Fuel Type demands premium 91 plus octane gasoline
- Assembly arrives complete with fuel injection intake
ATK Ford 502 Big Block 545 HP HP19M Stage 2 Engine
ATK Ford 502 Big Block 545 HP HP19M Stage 2 Engine delivers track-validated 545 HP performance featuring high-flow aluminum heads and a professional mid-dress setup for reliability.
- Aggressive 545 Horsepower Output Rating: Street validated.
- Elite Stage 2 Mid-Dress: Intake included.
- Lightweight Aluminum Cylinder Heads: Improved airflow.
- Reliable Hydraulic Flat Tappet Design: High-performance operation.
- Precision Internally Balanced Assembly: Smooth delivery.
One Year Limited Warranty Included.
ATK GM 350 330 HP HP291P Stage 1 Performance Long Block
ATK GM 350 330 HP HP291P Stage 1 Performance Long Block provides a precision-engineered 5.7L foundation featuring rugged cast iron heads and a hydraulic cam design.
- Rugged 5.7L Chevy Small Block: Street durable.
- High-Durability Cast Iron Heads: Rugged construction.
- Reliable Hydraulic Flat Tappet Cam: Classic design.
- Precision Internally Balanced Rotating Assembly: Smooth operation.
- Versatile Stage 1 Base: Builder's choice.
One Year Limited Warranty Included.
ATK GM 350 330 HP HP291PC Stage 3 Performance Engine
ATK GM 350 330 HP HP291PC Stage 3 Performance Engine delivers track-validated 5.7L power featuring rugged cast iron heads and a complete carbureted setup for reliable street performance.
- Complete Stage 3 Performance Build: Ready installation.
- Rugged Cast Iron Cylinder Heads: Thermal stability.
- Reliable Hydraulic Flat Tappet Cam: Classic design.
- Precision Internally Balanced Rotating Assembly: Smooth delivery.
- Seasoned Cast Iron Block Material: Extreme durability.
One Year Limited Warranty Included.
ATK GM 350 345 HP HP98 Stage 1 Cast Iron Long Block
ATK GM 350 345 HP HP98 Stage 1 Cast Iron Long Block provides a precision-engineered 5.7L foundation featuring rugged cast iron heads and a modern hydraulic roller cam design.
- Rugged 5.7L Chevy Small Block: Performance foundation.
- High-Durability Cast Iron Cylinder Heads: Rugged construction.
- Modern Hydraulic Roller Camshaft Tech: Efficient performance.
- Versatile Stage 1 Base Build: Custom foundation.
- Precision Machined Engine Block: Maximum build tolerances.
One Year Limited Warranty Included.
ATK GM 350 345 HP HP98C Stage 3 Complete Carbureted
ATK GM 350 345 HP HP98C Stage 3 Complete Carbureted delivers professional-grade 345 HP performance featuring a complete Stage 3 carbureted assembly and modern hydraulic roller cam reliability.
- Complete Stage 3 Carbureted Completion: Ready installation.
- Reliable Hydraulic Roller Valvetrain Tech: Low friction.
- High-Durability Cast Iron Head Material: Thermal stability.
- Precision Balanced Rotating Assembly: Superior smoothness.
- Complete Long Block Crate Engine: Professionally assembled.
One Year Limited Warranty Included.
ATK GM 350 345 HP HP98M Stage 2 Mid-Dress Engine
ATK GM 350 345 HP HP98M Stage 2 Mid-Dress Engine provides track-validated 5.7L Chevy power featuring cast iron heads and a professional mid-dress setup for aggressive street builds.
- Professional Stage 2 Mid-Dress: Intake included.
- Rugged Cast Iron Cylinder Heads: Exceptional durability.
- Modern Hydraulic Roller Camshaft Design: Efficient power.
- Precision Balanced Rotating Assembly: Smooth delivery.
- Seasoned Cast Iron Engine Block: Reliable foundation.
One Year Limited Warranty Included.
ATK GM 350 365 HP HP91M Stage 2 Aluminum Head LB
ATK GM 350 365 HP HP91M Stage 2 Aluminum Head LB delivers elite-grade 365 HP performance featuring high-flow aluminum heads and a professional Stage 2 mid-dress assembly.
- Elite High-Flow Aluminum Heads: Superior cooling.
- Powerful 365 Horsepower Output Rating: Track validated.
- Professional Stage 2 Mid-Dress: Intake included.
- Precision Balanced Rotating Assembly: Vibration-free operation.
- Modern Hydraulic Roller Valvetrain: Reliable efficiency.
One Year Limited Warranty Included.
ATK GM 350 390 HP HP89 Stage 1 Aluminum Head Engine
ATK GM 350 390 HP HP89 Stage 1 Aluminum Head Engine delivers track-validated Small Block power featuring high-flow aluminum heads for aggressive performance street engine builds.
- Performance Output: Reliable 390 Horsepower.
- Engine Displacement: 5.7L / 350 CI.
- Cylinder Head Material: Aluminum.
- Engine Block Material: Cast Iron.
- Valvetrain: Hydraulic roller OE cam.
One Year Limited Warranty Included.
ATK GM 350 390 HP HP89C Stage 3 Aluminum Head Complete
ATK GM 350 390 HP HP89C Stage 3 Aluminum Head Complete provides a ready-to-run 390 HP solution featuring a complete carbureted setup and elite aluminum heads.
- Performance Output: Proven 390 Horsepower.
- Engine Displacement: 5.7L / 350 CI.
- Cylinder Head Material: Aluminum.
- Engine Block Material: Cast Iron.
- Dress Level: Complete carbureted assembly.
One Year Limited Warranty Included.
ATK GM 350 390 HP HP89C-EFI Stage 3 Multi-Port EFI Engine
ATK GM 350 390 HP HP89C-EFI Stage 3 Multi-Port EFI Engine utilizes elite fuel injection technology and aluminum heads to provide reliable high-performance Chevy Small Block power.
- Performance Output: Aggressive 390 Horsepower.
- Engine Displacement: 5.7L / 350 CI.
- Cylinder Head Material: Aluminum.
- Engine Block Material: Cast Iron.
- Induction Style: Multi-port fuel injection.
One Year Limited Warranty Included.
ATK GM 350 390 HP HP89M Stage 2 Mid-Dress Performance
ATK GM 350 390 HP HP89M Stage 2 Mid-Dress Performance delivers professional 390 HP performance featuring aluminum heads and a mid-dress setup for reliable street power.
- Performance Output: Reliable 390 Horsepower.
- Engine Displacement: 5.7L / 350 CI.
- Cylinder Head Material: Aluminum.
- Engine Block Material: Cast Iron.
- Dress Level: Professional mid-dress setup.
One Year Limited Warranty Included.
ATK GM 350 408 HP HP34 Stage 1 Aluminum Head Long Block
- Performance Output: Powerful 408 Horsepower.
- Engine Displacement: 5.7L / 350 CI.
- Cylinder Head Material: Aluminum.
- Engine Block Material: Cast Iron.
- Valvetrain: Hydraulic roller OE cam.
ATK GM 350 408 HP HP34C Stage 3 Aluminum Head Complete
ATK GM 350 408 HP HP34C Stage 3 Aluminum Head Complete provides track-validated 408 HP power featuring a complete Stage 3 carbureted assembly and elite aluminum heads.
- Performance Output: Powerful 408 Horsepower.
- Engine Displacement: 5.7L / 350 CI.
- Cylinder Head Material: Aluminum.
- Engine Block Material: Cast Iron.
- Valvetrain: Hydraulic roller OE cam.
One Year Limited Warranty Included.
ATK GM 350 408 HP HP34M Stage 2 Aluminum Head Mid-Dress
ATK GM 350 408 HP HP34M Stage 2 Aluminum Head Mid-Dress delivers professional 408 HP performance featuring high-flow aluminum heads and a mid-dress setup for aggressive street builds.
- Performance Output: Aggressive 408 Horsepower.
- Engine Displacement: 5.7L / 350 CI.
- Cylinder Head Material: Aluminum.
- Engine Block Material: Cast Iron.
- Dress Level: Professional Stage 2 Mid-Dress.
One Year Limited Warranty Included.
ATK GM 350 TBI 290 HP HP31 Stage 1 Long Block Engine
ATK GM 350 TBI 290 HP HP31 Stage 1 Long Block Engine delivers precision-engineered 5.7L foundation featuring rugged cast iron heads for reliable TBI-equipped Chevy performance builds.
- Performance Output: Reliable 290 Horsepower.
- Engine Displacement: 5.7L / 350 CI.
- Cylinder Head Material: Cast Iron.
- Engine Block Material: Cast Iron.
- Valvetrain: Hydraulic roller OE cam.
One Year Limited Warranty Included.
ATK GM 350 Vortec 350 HP HP32C Stage 3 Complete LB
ATK GM 350 Vortec 350 HP HP32C Stage 3 Complete LB delivers professional 350 HP performance featuring rugged Vortec heads and a complete long-block assembly for reliable street builds.
- Performance Output: High-Performance 350 Horsepower.
- Engine Displacement: 5.7L / 350 CI.
- Cylinder Head Material: Cast Iron.
- Engine Block Material: Cast Iron.
- Dress Level: Complete Stage 3 Assembly.
One Year Limited Warranty Included.
BY BRANDS
- AMS Performance (18)
- ATK High Performance (107)
- ATK Marine Engine (25)
- BluePrint Engines (142)
- Chevrolet Performance (84)
- Edelbrock (18)
- Ford Performance Parts (22)
- LS Classic (13)
- Roush Industries Inc (91)
- VEGE Remanufactured Engines (756)

















