Product Description
The ATK HP101C Chevrolet 383ci High-Performance Stroker Complete Crate Engine is a professionally assembled small-block V8 designed for compatible classic Chevrolet restorations, muscle-car projects, hot rods, custom automotive builds, and performance engine replacement applications.
Delivering an impressive 460 horsepower and 490 lb-ft of torque, the HP101C combines traditional Chevrolet small-block architecture with increased stroker displacement and a comprehensive selection of performance components.
Built around a 1996–2000 Chevrolet OE roller engine block, this engine features four-bolt main construction, a one-piece rear main seal, a SCAT nodular iron crankshaft, forged pistons, and performance-oriented connecting rods.
The 383 cubic-inch displacement is achieved through a 4.040-inch bore and 3.750-inch stroke. This configuration provides greater displacement than a conventional Chevrolet 350ci small-block engine.
A major feature of the ATK HP101C is its performance aluminum cylinder head configuration, designed to work with a hydraulic roller camshaft, upgraded valvetrain, and high-flow intake system.
The engine includes a Quick Fuel 680 CFM carburetor, dual-plane intake manifold, performance distributor, mechanical fuel pump, water pump, harmonic balancer, spark plugs, and spark plug wires.
These components distinguish the HP101C complete-engine package from the HP101 base engine and HP101M mid-dress configuration.
The fully assembled carbureted engine provides a more comprehensive package for automotive builders who prefer major engine components to be selected and installed together rather than purchased individually.
Its hydraulic roller camshaft and 1.6-ratio roller rocker arms contribute to the engine’s advertised performance characteristics.
The ATK HP101C 383 Stroker is particularly attractive for compatible classic Chevrolet Camaro, Chevelle, Nova, El Camino, and classic truck restoration projects where a high-output small-block V8 is desired.
The complete-engine configuration also supports professional automotive workshops seeking a performance crate engine with fewer external engine components to source separately.
Although described as a complete or drop-in engine, the HP101C still requires verification of vehicle-specific equipment, cooling, exhaust, transmission compatibility, engine mounting, and applicable emissions requirements.
For suitable Chevrolet performance projects, the ATK HP101C 460HP Complete Crate Engine offers a combination of stroker displacement, forged internal components, aluminum cylinder heads, performance fuel delivery, and assembled-engine convenience.
Manufacturer and major-retailer specifications confirm the HP101C as a 383ci, 460HP complete engine with a carburetor and other external components.
Key Features
460 Horsepower Performance
Delivers an advertised 460HP, providing substantial output for compatible Chevrolet small-block applications.
490 lb-ft of Torque
Produces 490 lb-ft of torque from its performance 383ci stroker configuration.
Chevrolet 383ci Stroker V8
Features increased displacement through a 4.040-inch bore and 3.750-inch stroke.
Four-Bolt Main Engine Block
Built around a cast-iron Chevrolet OE roller block with four-bolt main construction.
SCAT Performance Crankshaft
Incorporates a SCAT nodular iron crankshaft as part of its rotating assembly.
Forged Pistons
Features forged pistons designed for the engine’s published performance configuration.
Performance Aluminum Cylinder Heads
Equipped with upgraded aluminum cylinder heads matched to the engine’s displacement and camshaft.
Hydraulic Roller Camshaft
Uses a performance hydraulic roller camshaft to support the advertised horsepower and torque ratings.
Quick Fuel 680 CFM Carburetor
Includes a performance carburetor with vacuum secondaries and electric choke.
Performance Dual-Plane Intake Manifold
Supplied with an intake manifold designed for the complete carbureted engine configuration.
Performance Ignition Components
Includes a distributor, spark plugs, and spark plug wires.
Complete Engine Package
Includes major engine-mounted fuel, ignition, lubrication, and cooling components.
Two-Year Manufacturer Warranty
Supported by ATK’s published 24-month limited warranty, subject to the manufacturer’s conditions.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | ATK High Performance Engines |
| Manufacturer Part Number | HP101C |
| GTIN / UPC | 00653517510434 |
| Store SKU | ATK-HP101C-383V8-2243 |
| Engine Type | Complete High-Performance Crate Engine |
| Engine Family | Chevrolet Small Block |
| Displacement | 383ci / 6.3L |
| Cylinder Configuration | V8 |
| Advertised Horsepower | 460 HP |
| Advertised Torque | 490 lb-ft |
| Engine Block | 1996–2000 OE Roller Block |
| Block Material | Cast Iron |
| Main Configuration | 4-Bolt Main |
| Rear Main Seal | One-Piece |
| Bore | 4.040 Inches |
| Stroke | 3.750 Inches |
| Compression Ratio | 10.0:1, Published Build Specification |
| Crankshaft | SCAT Nodular Iron |
| Crankshaft Balance | Internal Front / External Rear |
| Connecting Rods | SCAT I-Beam |
| Rod Length | 5.7 Inches |
| Rod Bolts | ARP 8740 |
| Pistons | Forged |
| Piston Rings | Moly |
| Camshaft | Hydraulic Roller |
| Intake Duration @ .050 | 224° |
| Exhaust Duration @ .050 | 236° |
| Intake Valve Lift | .591 Inches |
| Exhaust Valve Lift | .591 Inches |
| Lobe Separation Angle | 108° |
| Timing Chain | Double Roller |
| Cylinder Head Material | Aluminum |
| Published Cylinder Head Configuration | Dart SHP, 72cc Chamber / 200cc Runner |
| Intake Valve Diameter | 2.020 Inches |
| Exhaust Valve Diameter | 1.600 Inches |
| Rocker Arms | Billet Aluminum Roller |
| Rocker Ratio | 1.6:1 |
| Carburetor | Quick Fuel 680 CFM |
| Carburetor Type | Vacuum Secondary, Electric Choke |
| Intake Manifold | Dual-Plane |
| Distributor | HEI |
| Fuel Pump | Mechanical |
| Water Pump | OE Long Pump |
| Oil Pump | Melling Standard Volume |
| Oil Pan | Rear Sump |
| Oil Pan Capacity | 5 Quarts |
| Recommended Fuel | 91+ Octane |
| Oil Recommendation | Conventional 10W-30, per ATK Documentation |
| Warranty | 24 Months Limited, Unlimited Mileage for Eligible Long Blocks |
Component details are based on published HP101-series build specifications. ATK’s earlier HP101C showcase identifies a different camshaft and cylinder-head combination; supplier substitution is possible. The actual engine build sheet should determine the components shipped.
Engine Block / Internal Configuration
| Component | Details |
|---|---|
| Engine Architecture | Chevrolet Small Block V8 |
| Displacement | 383 Cubic Inches |
| Engine Block | OE Roller Cast Iron |
| Block Configuration | 4-Bolt Main |
| Rear Main Seal | One-Piece |
| Bore × Stroke | 4.040″ × 3.750″ |
| Crankshaft | SCAT Nodular Iron |
| Front Balance | Internal |
| Rear Balance | External |
| Connecting Rods | SCAT I-Beam, 5.7 Inches |
| Rod Fasteners | ARP 8740 |
| Pistons | Forged |
| Piston Rings | Moly |
| Timing Chain | Double Roller |
Cylinder Head / Valvetrain Configuration
| Component | Details |
|---|---|
| Cylinder Heads | Performance Aluminum |
| Published Head Configuration | Dart SHP |
| Combustion Chambers | 72cc |
| Intake Runners | 200cc |
| Intake Valves | 2.020 Inches |
| Exhaust Valves | 1.600 Inches |
| Camshaft | Hydraulic Roller |
| Intake Duration @ .050 | 224° |
| Exhaust Duration @ .050 | 236° |
| Intake Valve Lift | .591 Inches |
| Exhaust Valve Lift | .591 Inches |
| Lobe Separation | 108° |
| Rocker Arms | Billet Aluminum Roller |
| Rocker Ratio | 1.6:1 |
Fuel / Intake Configuration
| Component | Details |
|---|---|
| Fuel System | Carbureted |
| Carburetor | Quick Fuel 680 CFM |
| Carburetor Operation | Vacuum Secondaries |
| Choke | Electric |
| Intake Manifold | Performance Dual-Plane |
| Published Intake Reference | Weiand Stealth 8150 |
| Fuel Pump | Mechanical |
| Published Fuel Pump Reference | Holley 110 GPH |
| Recommended Fuel | 91+ Octane |
| Air Cleaner | Not Included |
The carburetor, intake, and mechanical fuel pump are supplied as part of the complete-engine configuration. Exact component brands may vary according to the manufacturer’s final build.
Ignition / Electrical Configuration
| Component | Details |
|---|---|
| Distributor | Included |
| Ignition Configuration | HEI |
| Published Distributor Reference | MSD 8362 |
| Spark Plugs | Included |
| Published Spark Plug Reference | Autolite 3923 |
| Spark Plug Wires | Included |
| Published Wire Configuration | 8mm |
| Complete Vehicle Wiring Harness | Not Included |
| Engine Computer | Not Included |
| Battery | Not Included |
Cooling / Lubrication Configuration
| Component | Details |
|---|---|
| Water Pump | Included |
| Water Pump Configuration | OE Long Pump |
| Oil Pump | Melling Standard Volume |
| Oil Pan | Rear Sump |
| Oil Pan Capacity | 5 Quarts |
| Timing Cover | Included |
| Valve Covers | Included |
| Radiator | Not Included |
| Cooling Hoses | Vehicle-Specific |
| Oil Filter | Compatible Application-Specific Filter |
Engine Balance / Drivetrain Configuration
| Component | Details |
|---|---|
| Crankshaft Front Balance | Internal |
| Crankshaft Rear Balance | External |
| Harmonic Balancer | Included |
| Published Balancer Reference | PowerBond PB1046-N |
| Flexplate | Listed in Complete Engine Package |
| Published Flexplate Reference | Pioneer FRA-159 |
| Flexplate Tooth Count | 168-Tooth, Published Configuration |
| Flywheel | Not Included |
| Transmission | Not Included |
| Transmission Compatibility | Vehicle-Specific |
Complete Engine / Package Configuration
| Component | Details |
|---|---|
| Package Type | Complete / Fully Dressed Crate Engine |
| Assembled Engine Block | Included |
| Crankshaft and Rotating Assembly | Installed |
| Aluminum Cylinder Heads | Installed |
| Hydraulic Roller Camshaft | Installed |
| Roller Rocker Arms | Installed |
| Intake Manifold | Included |
| Carburetor | Included |
| Distributor | Included |
| Mechanical Fuel Pump | Included |
| Harmonic Balancer | Included |
| Water Pump | Included |
| Spark Plugs | Included |
| Spark Plug Wires | Included |
| Timing Cover | Included |
| Valve Covers | Included |
| Oil Pan and Oil Pump | Included |
What’s Included
| Included Item | Details |
|---|---|
| ATK HP101C Chevrolet 383ci Complete Engine | 1 Unit |
| Four-Bolt Main Cast-Iron Engine Block | Included |
| SCAT Crankshaft | Installed |
| Performance Connecting Rods | Installed |
| Forged Pistons | Installed |
| Hydraulic Roller Camshaft | Installed |
| Aluminum Cylinder Heads | Installed |
| Performance Rocker Arms | Installed |
| Dual-Plane Intake Manifold | Included |
| Quick Fuel 680 CFM Carburetor | Included |
| HEI Distributor | Included |
| Mechanical Fuel Pump | Included |
| Harmonic Balancer | Included |
| Flexplate | Listed in Complete Package |
| Water Pump | Included |
| Oil Pump and Oil Pan | Included |
| Valve Covers and Timing Cover | Included |
| Spark Plugs and Wires | Included |
| Air Cleaner | Not Included |
| Radiator | Not Included |
| Exhaust Headers | Not Included |
| Transmission | Not Included |
The carburetor, intake, ignition components, water pump, fuel pump, and flexplate are identified in published complete-engine package details. Confirm the supplied component brands and final packing list with the distributor.
Vehicle / Installation Compatibility
The ATK HP101C 383 Stroker Complete Engine is intended for compatible Chevrolet small-block automotive configurations.
| Vehicle Application | Fitment Requirements |
|---|---|
| Classic Chevrolet Camaro | Engine Mounting and Drivetrain |
| Chevrolet Chevelle | Oil Pan and Steering Clearance |
| Chevrolet Nova | Engine Bay and Mounting |
| Chevrolet Impala | Engine and Transmission Compatibility |
| Chevrolet El Camino | Cooling and Drivetrain Fitment |
| Classic Chevrolet Trucks | Engine Mounting and Accessories |
| Compatible GMC Trucks | Small-Block Chevrolet Configuration |
| Custom Automotive Builds | Complete Vehicle-Specific Assessment |
The rear-sump oil pan may not fit some Chevelle and Corvette applications or 1962–1967 Chevy II vehicles without modifications.
Ideal Applications
Classic Chevrolet Restoration
Suitable for compatible classic Chevrolet projects requiring a complete carbureted 383ci V8 engine.
Muscle-Car Engine Replacement
Provides a professionally assembled performance engine for compatible muscle-car restoration applications.
Custom Hot Rod Projects
An option for professionally planned custom automotive projects using Chevrolet small-block engine architecture.
Classic Chevrolet & GMC Trucks
Suitable for selected truck restorations where the engine mounting, cooling, and transmission requirements match.
Professional Automotive Workshops
Offers a complete crate-engine package with major external components already included.
Product Advantages
The ATK HP101C offers substantial naturally aspirated V8 performance in a complete-engine format.
Its key advantages include the 460HP power rating, 490 lb-ft torque output, stroker rotating assembly, forged pistons, performance aluminum cylinder heads, hydraulic roller camshaft, and included external engine components.
Compared with the HP101 base engine and HP101M mid-dress engine, the HP101C additionally includes the carburetor, fuel pump, spark plugs, and spark plug wires as part of its published complete-engine package.
This makes it a practical choice for customers seeking a more comprehensive engine assembly.
Safety & Installation Notice
Professional automotive installation and verification of all supplied components are recommended.
The HP101C’s performance camshaft produces insufficient vacuum for some conventional vacuum-assisted brake systems. A qualified technician must confirm adequate braking assistance for the finished vehicle.
The engine is not automatically legal for emissions-controlled road vehicles. Vehicle-specific emissions, registration, and installation requirements apply.
Warranty Information
2-Year Limited Manufacturer Warranty
ATK publishes 24 months of coverage with unlimited mileage for eligible remanufactured high-performance long-block engines. Warranty eligibility, labor reimbursement, exclusions, and claim procedures are subject to ATK’s written terms.
A refundable core charge may apply separately from the engine price.
Product Highlights
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ATK HP101C Chevrolet 383ci Complete Crate Engine
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460 Horsepower & 490 lb-ft Torque
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383ci / 6.3L Small Block V8
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Four-Bolt Main Cast-Iron Engine Block
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SCAT Nodular Iron Crankshaft
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Forged Pistons
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Performance Aluminum Cylinder Heads
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Hydraulic Roller Camshaft
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Quick Fuel 680 CFM Carburetor
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Performance Dual-Plane Intake Manifold
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HEI Distributor
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Mechanical Fuel Pump
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Harmonic Balancer and Water Pump
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Spark Plugs and Wires
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Complete Engine Configuration
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2-Year Limited Manufacturer Warranty
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