In Stock
Inspected & Documented
Condition notes recorded before palletizing.
30-Day Startup Warranty
Covers block, heads and internal moving components.
In Stock & Ready to Freight
Crate Engines
Chevrolet Performance SP383 C.I.D EFI Turnkey Long Block Crate Engines 19433046
$7,123.12
+ $295.00 flat-rate insured LTL freight
(details)
$7,418.12 delivered to the continental US
- Palletized and heavy shrink-wrapped for freight
- LTL carrier delivery with optional liftgate service
- Ships in 1–2 business days from Los Angeles, CA
- Transit typically 3–7 business days, continental US
Secure checkout by Stripe
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
Chevrolet Performance SP383 EFI Turnkey Long Block Crate Engine (19433046), High-Performance Fuel-Injected Small Block!
Unleash the power of modern fuel injection with the Chevrolet Performance SP383 EFI Turnkey Long Block Crate Engine!
The Chevrolet Performance SP383 EFI Turnkey Long Block Crate Engine (19433046) is a modern take on the legendary 383 stroker, combining EFI technology, aluminum heads, and a high-performance camshaft to create an engine with more torque, better fuel economy, and enhanced drivability.
A fuel-injected powerhouse built for today’s muscle car enthusiasts!
What’s Included in the Turnkey Long Block?
Cast-Iron Engine BlockBuilt for durability and high-performance applications
Aluminum Cylinder HeadsReduces weight and improves cooling efficiency
EFI Throttle Body & Intake ManifoldEnsures modern fuel delivery and throttle response
Hydraulic Roller CamshaftProvides high-rpm capability with smooth operation
Distributor & Ignition SystemIncludes high-performance ignition for reliable spark delivery
Flexplate & Harmonic BalancerMaintains smooth engine operation and reduces vibrations
Water Pump & Timing CoverEnsures proper cooling and camshaft timing
Oil Pan & Valve CoversProtects internal components and enhances durability
Computer & Wiring HarnessEnsures seamless EFI integration
Spark Plugs & WiresOptimized for high-performance ignition and combustion efficiency
EXCLUDES flywheel, air cleaner, and supercharger. These must be purchased separately based on your vehicle setup.
Technical Specifications
| Feature | Details |
|---|---|
| Brand | Chevrolet Performance |
| Manufacturer’s Part # | 19433046 |
| Product Type | Crate Engine |
| Summit Racing Part # | NAL-19433046 |
| Crate Engine Family | Chevy Small Block |
| Actual Displacement | 6.3L / 383 cubic inches |
| Assembled? | Yes |
| Engine Block Material | Cast Iron |
| Cylinder Head Material | Aluminum |
| Advertised Compression Ratio | 9.72:1 |
| Engine Balance | External |
| Camshaft Type | Hydraulic Roller |
| Rear Main Seal Style | 1-Piece |
| Intake Manifold Included? | Yes |
| Intake Style | Fuel Injection |
| Carburetor Included? | No |
| Throttle Body Included? | Yes |
| Distributor Included? | Yes |
| Oil Pan Included? | Yes |
| Valve Covers Included? | Yes |
| Timing Cover Included? | Yes |
| Water Pump Included? | Yes |
| Harmonic Balancer Included? | Yes |
| Flexplate Included? | Yes |
| Flywheel Included? | No |
| Air Cleaner Included? | No |
| Spark Plugs Included? | Yes |
| Spark Plug Wires Included? | Yes |
| Computer Included? | Yes |
| Wiring Harness Included? | Yes |
| Supercharger Included? | No |
| Quantity | Sold Individually |
Designed for fuel efficiency, reliability, and high-performance driving!
Fitment & Compatibility
Direct fit for classic Chevy muscle cars, hot rods, and modern restomods
Designed for easy integration with EFI-compatible fuel systems
Ideal for street-driven performance applications
Ensure proper drivetrain and fuel system compatibility before ordering!
Installation Notes & Recommendations
Professional Installation RecommendedEnsures correct fitment, tuning, and performance
Proper Engine Break-In Procedure RequiredMaximizes lifespan and peak efficiency
Requires EFI-Compatible Fuel SystemEnsure your vehicle’s fuel system can support electronic fuel injection
Not designed for carbureted fuel systems without modifications.
Frequently Asked Questions (FAQ)
What is the horsepower and torque output of this engine?
- The SP383 EFI produces over 450 HP and 436 lb-ft of torque.
Is this engine suitable for street use?
- Yes! This engine is designed for street performance, restomods, and daily-driven classic muscle cars.
Does it come with a flywheel and air cleaner?
- No, these components are NOT included. You must purchase them separately based on your vehicle setup.
Can I install this engine in a classic Chevy muscle car?
- Yes! This Chevy Small Block is an ideal upgrade for classic Chevelle, Camaro, Nova, Corvette, and other high-performance builds.
Does this engine require a specific fuel type?
- Yes, it requires premium fuel (91 octane or higher) due to its 9.72:1 compression ratio.
Order Your Chevrolet Performance SP383 EFI Turnkey Long Block Engine Today!
Upgrade your classic Chevy with the modern performance of the Chevrolet Performance SP383 EFI Turnkey Long Block Crate Engine!
Fuel-Injected Small Block with Over 450 HP
Complete Turnkey Assembly for Easy Installation
Ideal for Classic Chevy Restorations and High-Performance Street Builds
Built for Maximum Power, Reliability, and Efficiency
ORDER NOW & EXPERIENCE EFI PERFORMANCE!
Brand: Chevrolet Performance
Manufacturer’s Part Number: 19433046
Part Type: Crate Engines
Product Line: Chevrolet Performance SP383 C.I.D EFI Turnkey Long Block Crate Engines
Summit Racing Part Number: NAL-19433046
Crate Engine Family: Chevy Small Block
Actual Engine Displacement: 6.3L/383
Crate Engine Cylinder Head Material: Aluminum
Engine Block Material: Cast iron
Advertised Compression Ratio: 9.72:1
Assembled: Yes
Engine Balance: External
Cam Style: Hydraulic roller, OE roller
Rear Main Seal Style: 1-piece
Intake Manifold Included: Yes
Intake Manifold Style: Fuel Injection
Cylinder Heads Included: Yes
Carburetor Included: No
Throttle Body Included: Yes
Distributor Included: Yes
Oil Pan Included: Yes
Valve Covers Included: Yes
Timing Cover Included: Yes
Water Pump Included: Yes
Harmonic Balancer Included: Yes
Flexplate Included: Yes
Flywheel Included: No
Air Cleaner Included: No
Spark Plugs Included: Yes
Spark Plug Wires Included: Yes
Computer Included: Yes
Wiring Harness Included: Yes
Supercharger Included: No
Quantity: Sold individually.
Startup & Installation Checklist
- Replace timing components, water pump and plugs before initial startup where applicable.
- Refill all fluids with manufacturer-specified oil and coolant.
- Verify sensors, ECU pinouts and grounds against your chassis or hull wiring.
- Startup warranty covers heads, block and internal lubricated components for 30 days from delivery.
Full terms: 30-day startup warranty · returns
