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 LS3 525 HP Long Block Crate Engines 19432629
$6,499.77
+ $295.00 flat-rate insured LTL freight
(details)
$6,794.77 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 LS3 525 HP Long Block Crate Engine (19432629), The Ultimate LS Power Upgrade!
Unleash track-ready performance with the Chevrolet Performance LS3 525 HP Long Block Crate Engine!
The Chevrolet Performance LS3 525 HP Long Block Crate Engine (19432629) is a high-output version of the proven LS3, featuring a hot camshaft, CNC-machined aluminum cylinder heads, and an optimized fuel injection system. This engine provides high-revving capability, aggressive throttle response, and excellent reliability, making it a perfect choice for performance enthusiasts.
A modern V8 legend ready for the street or track!
What’s Included in the Long Block?
Aluminum LS3 Engine BlockLightweight, durable, and optimized for performance applications
CNC-Machined Aluminum Cylinder HeadsEnhances airflow and combustion efficiency
High-Lift Hydraulic Roller CamshaftDelivers increased RPM range and aggressive sound
Fuel Injection System with Throttle BodyProvides modern EFI drivability and efficiency
Water Pump & Timing CoverEnsures proper cooling and camshaft operation
Oil Pan & Valve CoversProtects internal components and enhances durability
Harmonic BalancerMaintains smooth engine operation at high RPMs
Spark Plugs IncludedOptimized for high-performance ignition
EXCLUDES flywheel, flexplate, wiring harness, and ECU. These must be purchased separately or transferred from an existing setup.
Technical Specifications
| Feature | Details |
|---|---|
| Brand | Chevrolet Performance |
| Manufacturer’s Part # | 19432629 |
| Product Type | Crate Engine |
| Summit Racing Part # | NAL-19432629 |
| Crate Engine Family | Chevy LS |
| Actual Displacement | 6.2L / 376 cubic inches |
| Assembled? | Yes |
| Engine Block Material | Aluminum |
| Cylinder Head Material | Aluminum |
| Compression Ratio | 10.7:1 |
| Engine Balance | Internal |
| 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? | No |
| Oil Pan Included? | Yes |
| Valve Covers Included? | Yes |
| Timing Cover Included? | Yes |
| Water Pump Included? | Yes |
| Harmonic Balancer Included? | Yes |
| Flexplate Included? | No |
| Flywheel Included? | No |
| Air Cleaner Included? | No |
| Spark Plugs Included? | Yes |
| Spark Plug Wires Included? | No |
| Computer Included? | No |
| Wiring Harness Included? | No |
| Supercharger Included? | No |
| Quantity | Sold Individually |
Built for high-revving performance, aggressive sound, and LS reliability!
Fitment & Compatibility
Direct fit for LS swaps, custom muscle cars, and high-performance vehicles
Designed for modern EFI fuel systems
Perfect for pro-touring, track cars, and restomod builds
Ensure proper drivetrain and ECU compatibility before ordering!
Installation Notes & Recommendations
Professional Installation RecommendedEnsures correct fitment, tuning, and peak performance
Requires EFI-Compatible Fuel System & ECUEnsure your vehicle is equipped for electronic fuel injection
Premium Fuel Required91 octane or higher recommended for optimal performance
Not designed for carbureted fuel systems without modifications.
Frequently Asked Questions (FAQ)
What is the horsepower and torque output of this engine?
- The LS3 525 produces 525 HP at 6,300 RPM and 486 lb-ft of torque at 4,400 RPM.
Is this engine suitable for street use?
- Yes! This engine is designed for street performance, restomods, and track cars.
Does it come with a flywheel and wiring harness?
- No, these components are NOT included. You must purchase them separately based on your setup.
Can I install this engine in a classic Chevy muscle car?
- Yes! This Chevy LS engine is an ideal upgrade for classic Camaro, Chevelle, Corvette, Nova, and other high-performance builds.
Does this engine require a specific fuel type?
- Yes, premium fuel (91 octane or higher) is recommended due to its 10.7:1 compression ratio.
Order Your Chevrolet Performance LS3 525 HP Long Block Crate Engine Today!
Upgrade your LS swap or muscle car with the Chevrolet Performance LS3 525 HP Long Block Crate Engine!
Modern LS3 Power with 525 HP & 486 lb-ft Torque
Complete Assembly with EFI Intake, Throttle Body, & Accessories
Ideal for Classic Chevy Restorations and High-Performance Builds
Built for Maximum Power, Reliability, and Tunability
ORDER NOW & EXPERIENCE LS PERFORMANCE!
Brand: Chevrolet Performance
Manufacturer’s Part Number: 19432629
Part Type: Crate Engines
Product Line: Chevrolet Performance LS3 525 HP Long Block Crate Engines
Summit Racing Part Number: NAL-19432629
Crate Engine Family: Chevy LS
Actual Engine Displacement: 6.2L/376
Crate Engine Cylinder Head Material: Aluminum
Engine Block Material: Aluminum
Advertised Compression Ratio: 10.7:1
Assembled: Yes
Engine Balance: Internal
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: No
Oil Pan Included: Yes
Valve Covers Included: Yes
Timing Cover Included: Yes
Water Pump Included: Yes
Harmonic Balancer Included: Yes
Flexplate Included: No
Flywheel Included: No
Air Cleaner Included: No
Spark Plugs Included: Yes
Spark Plug Wires Included: No
Computer Included: No
Wiring Harness Included: No
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
